CN112734275A - Method for evaluating hungry stereotypy behavior of pregnant sow - Google Patents

Method for evaluating hungry stereotypy behavior of pregnant sow Download PDF

Info

Publication number
CN112734275A
CN112734275A CN202110072488.9A CN202110072488A CN112734275A CN 112734275 A CN112734275 A CN 112734275A CN 202110072488 A CN202110072488 A CN 202110072488A CN 112734275 A CN112734275 A CN 112734275A
Authority
CN
China
Prior art keywords
population
chewing
sows
proportion
sow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110072488.9A
Other languages
Chinese (zh)
Other versions
CN112734275B (en
Inventor
代发文
林涛
尕尔让拉么
叶建蓉
李丹
陈琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guang'an Feed Industry Management Station
Leshan Normal University
Original Assignee
Guang'an Feed Industry Management Station
Leshan Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guang'an Feed Industry Management Station, Leshan Normal University filed Critical Guang'an Feed Industry Management Station
Priority to CN202110072488.9A priority Critical patent/CN112734275B/en
Publication of CN112734275A publication Critical patent/CN112734275A/en
Application granted granted Critical
Publication of CN112734275B publication Critical patent/CN112734275B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/02—Agriculture; Fishing; Mining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/87—Re-use of by-products of food processing for fodder production

Landscapes

  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Engineering & Computer Science (AREA)
  • Economics (AREA)
  • Strategic Management (AREA)
  • Tourism & Hospitality (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Educational Administration (AREA)
  • Marketing (AREA)
  • General Physics & Mathematics (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Development Economics (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Operations Research (AREA)
  • Game Theory and Decision Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Animal Husbandry (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Mining & Mineral Resources (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Primary Health Care (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention discloses an evaluation method of pregnant sow hunger type stereotypy, and provides a simple, quick and stable evaluation method. The method can stably and accurately evaluate the stereotypy behavior of the sow population, so that a breeder can improve the satiety of the sow population in time through feeding management, such as increasing the daily ration crude fiber level, increasing the daily ration high water absorption swelling fiber raw material addition level, adjusting the feeding time, increasing the feeding amount and the like, and the health welfare and the reproductive performance of the pigs are improved. The method does not need long-time observation, has good repeatability of the measured data of the evaluation index and simple judgment of the index result, and improves the effectiveness of field application.

Description

Method for evaluating hungry stereotypy behavior of pregnant sow
Technical Field
The invention belongs to the field of breeding, and particularly relates to an evaluation method of hungry stereotypy behavior of pregnant sows.
Background
In order to improve the breeding efficiency of sows, pregnant sows generally adopt a single-column accurate feeding technology in the current specialized and large-scale pig farms. The positioning fence is usually narrow in space, and the sow can only stand and lie, and can not freely move. According to the physiological stage characteristics of pregnant sows, a 'step up' or 'high-low-high' feeding scheme is usually adopted, the feeding amount in the whole gestation period is 2.4-2.5 kg/day on average and is only 40-60% of the free feed intake. The two reasons are easy to cause stereotypy of pregnant sows. Stereotypical behavior refers to repetitive behavior with no apparent purpose, and is typically characterized by: pregnant sows lie on rails, arch ring doors and empty mouths with mastication and white foam, and people and animals are sensitive to frequent drinking and lie frequently. Too many stereotypy occur to pregnant sows, which easily causes stress, and causes the problems of reduced litter size, poor uniformity of birth weight average and the like. Therefore, a set of scientific assessment method for the stereotypy behavior state of the pregnant sow needs to be established so as to better prevent and control the stress of the sow and improve the reproductive performance. The existing method for evaluating the stereotype practice of the sow mainly judges by counting the time length of the stereotype practice, and mainly has the following defects: 1) the method of video monitoring is mainly adopted during observation, the measurement is observed for a long time, and the operation is troublesome and laborious. 2) The evaluation indexes are more, but most indexes are difficult to observe, influence factors are more, judgment difficulty is higher, many characteristics are difficult to observe, and instability exists in behaviors such as hurdling, rising and lying and the like. 3) The evaluation index is unstable, and stable observation is difficult to achieve due to large influence of field environment and behaviors. According to the invention, the proportion of the occurrence of the stereotyping behavior of the sows represented by the empty chewing is selected, the empty chewing action and the white foam at the mouth corners are taken as characteristics, the observation is easy, the variation amplitude of continuous observation for 7 days in the same gestational period is small, and the result is stable and reliable.
Disclosure of Invention
Aiming at the defects in the prior art, the method for evaluating the hunger type stereotypy behavior of the pregnant sow provided by the invention solves the problems in the prior art.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: a method for evaluating hungry stereotypy behavior of pregnant sows comprises the following steps:
s1, dividing the sow population into a pre-pregnancy population, a mid-pregnancy population and a late-pregnancy population;
s2, setting the postprandial observation time of stereotypy behavior, respectively obtaining the proportion of empty chewing sows of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population in the observation time, and continuously observing for N days, wherein N is more than or equal to 3;
s3, respectively acquiring an average value and a standard deviation of N sky chewing ratios of the population in the early gestation period, the population in the middle gestation period and the population in the later gestation period according to the proportion of empty chewing sows, and acquiring a variation coefficient of the N sky chewing ratios according to the average value and the standard deviation;
s4, setting a threshold L1 of the N sky chewing ratio variation coefficient, and judging whether the variation coefficient of the N sky chewing ratio of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population is smaller than a threshold L1, if yes, judging that the corresponding population measurement result is stable, and entering the step S6; otherwise, judging that the data of the corresponding population has sample measurement deviation, and entering the step S5;
s5, delaying the observation time point after the stereotypy behavior, re-obtaining the proportion and the variation coefficient of the empty chewing sow of the corresponding population, and judging whether the variation coefficient of the N sky chewing proportion of the sow is smaller than a threshold value L1, if so, entering the step S6, otherwise, repeating the step S5;
s6, setting the N sky chewing ratio average value thresholds of the pregnancies of the middle-term population and the pregnancies of the postnatal population as A, B, C, and judging whether the air interface chewing ratio measurement results of the populations are respectively smaller than the corresponding thresholds, if so, judging that the stereotypy behavior of the sow population in the corresponding stage is better controlled, otherwise, judging that the stereotypy behavior of the sow population in the corresponding stage is poorer controlled, and finishing the evaluation process.
Further, the pregnancies in the step S1 are specifically the group consisting of sows bred to 21 days of gestation; the population in the middle gestation period of S1 is specifically a population formed by sows between 22 days and 90 days of gestation; the population in the later gestation stage of S1 is specifically a population formed by sows from 91 th gestation to the birth bed.
Furthermore, the number of pigs in the pregnancies prophase population, the gestation metaphase population and the gestation anaphase population is not less than the natural number D.
Further, the step S2 is specifically:
s2.1, setting observation time as N continuous days, wherein the observation time of each day comprises an observation time point in the morning and an observation time point in the afternoon;
s2.2, feeding before three hours of observation time in the morning, recording the number of empty chewing sows in the pre-gestation period population, the mid-gestation period population and the late-gestation period population, and acquiring the proportion of the empty chewing sows in the morning period;
s2.3, feeding before three hours of observation time in the afternoon, recording the number of empty chewing sows in the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population, and acquiring the proportion of the empty chewing sows in the afternoon;
s2.4, calculating the average of the proportion of the empty chewing sows in the morning and the proportion of the empty chewing sows in the afternoon to obtain the proportion of the empty chewing sows in the day;
s2.5, respectively obtaining the proportion of empty chewing sows of the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population for continuous N days by the method of the steps S2.2-S2.4.
Further, the judgment standard of the empty chewing sow in the step S2.2 is as follows: the sow has chewing action or the sow does not have the chewing action but the edge of the mouth corner has white foam.
Further, the average value of the samples in step S3 is specifically:
M1＝(P1+P2+...+PN)/N
wherein M is1Mean values of samples, P, representing the populationiIndicating the proportion of empty chewing sows of the population on day i, i ═ 1, 2.
Further, the standard deviation SD of the sample in the step S31The method specifically comprises the following steps:
Figure BDA0002906370130000031
further, the variation coefficient CV in the step S31The method specifically comprises the following steps:
CV1＝SD1/M1*100％。
further, the specific method for delaying the observation time point after the stereotypical behavior in step S5 is as follows: the observation time point was delayed X minutes with the feeding time kept constant.
The invention has the beneficial effects that:
(1) the invention provides a simple, quick and stable evaluation method, which can scientifically judge the stereotypy behavior state of sows caused by hunger and provide reference basis for improving the reproductive performance of sows.
(2) The method can accurately evaluate the stereotypy behavior of the sow population, so that a breeder can improve the satiety of the sow population through feeding management, such as increasing the daily ration crude fiber level, increasing the daily ration high water absorption swelling fiber addition level, adjusting the feeding time, increasing the feeding amount and the like, and the health welfare and the reproductive performance of the pigs are improved.
(3) The method does not need long-time observation, has good repeatability of the measured data of the evaluation index and simple judgment of the index result, and improves the effectiveness of field application.
Drawings
FIG. 1 is a flow chart of the method for evaluating hungry stereotypy behavior of pregnant sows, which is provided by the invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, a method for evaluating hungry stereotypy behavior of pregnant sows comprises the following steps:
s1, dividing the sow population into a pre-pregnancy population, a mid-pregnancy population and a late-pregnancy population;
s2, setting the postprandial observation time of stereotypy behavior, respectively obtaining the proportion of empty chewing sows of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population in the observation time, and continuously observing for N days, wherein N is more than or equal to 3;
s3, respectively acquiring an average value and a standard deviation of N sky chewing ratios of the population in the early gestation period, the population in the middle gestation period and the population in the later gestation period according to the proportion of empty chewing sows, and acquiring a variation coefficient of the N sky chewing ratios according to the average value and the standard deviation;
s4, setting a threshold L1 of the N sky chewing ratio variation coefficient, and judging whether the variation coefficient of the N sky chewing ratio of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population is smaller than a threshold L1, if yes, judging that the corresponding population measurement result is stable, and entering the step S6; otherwise, judging that the data of the corresponding population has sample measurement deviation, and entering the step S5;
s5, delaying the observation time point after the stereotypy behavior, re-obtaining the proportion and the variation coefficient of the empty chewing sow of the corresponding population, and judging whether the variation coefficient of the N sky chewing proportion of the sow is smaller than a threshold value L1, if so, entering the step S6, otherwise, repeating the step S5;
s6, setting the N sky chewing ratio average value thresholds of the pregnancies of the middle-term population and the pregnancies of the postnatal population as A, B, C, and judging whether the air interface chewing ratio measurement results of the populations are respectively smaller than the corresponding thresholds, if so, judging that the stereotypy behavior of the sow population in the corresponding stage is better controlled, otherwise, judging that the stereotypy behavior of the sow population in the corresponding stage is poorer controlled, and finishing the evaluation process.
The pregnancies in the step S1 are specifically the population formed by sows bred to 21 days of gestation; the population in the middle gestation period of S1 is specifically a population formed by sows between 22 days and 90 days of gestation; the population in the later gestation stage of S1 is specifically a population formed by sows from 91 th gestation to the birth bed.
The number of pigs in the pre-pregnancy population, the middle-pregnancy population and the late-pregnancy population is not less than a natural number D, and D is 100.
In this embodiment, the pregnancies in step S1 are specifically the group consisting of sows between 7 days of mating and 21 days of gestation; the population in the middle gestation period of S1 is specifically a population formed by sows between 22 days and 90 days of gestation; the population in the later gestation stage of S1 is specifically a population formed by sows from 91 th gestation to the birth bed.
The step S2 specifically includes:
s2.1, setting observation time as N continuous days, wherein the observation time of each day comprises an observation time point in the morning and an observation time point in the afternoon;
s2.2, feeding before three hours of observation time in the morning, recording the number of empty chewing sows in the pre-gestation period population, the mid-gestation period population and the late-gestation period population, and acquiring the proportion of the empty chewing sows in the morning period;
s2.3, feeding before three hours of observation time in the afternoon, recording the number of empty chewing sows in the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population, and acquiring the proportion of the empty chewing sows in the afternoon;
s2.4, calculating the average of the proportion of the empty chewing sows in the morning and the proportion of the empty chewing sows in the afternoon to obtain the proportion of the empty chewing sows in the day;
s2.5, respectively obtaining the proportion of empty chewing sows of the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population for continuous N days by the method of the steps S2.2-S2.4.
In this embodiment, N is set to 7, and the trough residue needs to be cleaned after the pigs are fed.
The judgment standard of the empty chewing sow in the step S2.2 is as follows: the sow has chewing action or the sow does not have the chewing action but the edge of the mouth corner has white foam.
The average value of the samples in the step S3 is specifically:
M1＝(P1+P2+...+PN)/N
wherein M is1Mean values of samples, P, representing the populationiIndicating the proportion of empty chewing sows of the population on day i, i ═ 1, 2.
The standard deviation SD of the sample in the step S31The method specifically comprises the following steps:
Figure BDA0002906370130000071
the variation coefficient CV in the step S31The method specifically comprises the following steps:
CV1＝SD1/M1*100％。
the specific method for delaying the observation time point after the nick plate behavior in step S5 is as follows: the observation time point was delayed X minutes with the feeding time kept constant.
In this embodiment, the N sky chewing ratio variation coefficient threshold is set to 10%.
In this example, the feeding schedule for pregnant sows in a pig farm is: in the early stage of pregnancy, breeding for 7 days to 21 days of pregnancy, and feeding for 1.8-2 kg/day; feeding for 2.2-3 kg/day in the middle gestation period of 22-90 days; in the later stage of pregnancy, 90 days of pregnancy are fed to obstetric table, and 3-3.5 kg/day is fed. Feeding 2 tons a day, respectively at the ratio of 8: 00 and 14: 00 feed was completed and observation time was selected at 3 hours post feeding, then at 11: 00 and 17: 00, during which no other operations are performed to disturb the herd, leaving the sow herd in a state of rest. The same time point was observed for 7 consecutive days. According to the feeding amount condition at different stages, setting the average value threshold of 7 sky chewing proportion of pregnancies prophase population, pregnancies metaphase population and pregnancies anaphase population as 10%, 8% and 6% respectively.
The number of pigs with empty chewing behaviors in the pig group is observed, the number proportion of empty chewing pigs of sows in the early gestation period, the middle gestation period and the later gestation period is respectively counted, the average value, the standard deviation and the variation coefficient are calculated, and the specific experimental result is shown in table 1.
TABLE 1 proportion of pigs with hollow mouth chewing behavior for pregnant sows
Figure BDA0002906370130000072
Figure BDA0002906370130000081
The experimental results show that the variation coefficients of the empty chewing proportions of the sows in the early, middle and later periods of pregnancy are all less than 10 percent, the results are stable, and the results are further judged. According to the fact that the average values of the empty chewing ratios of the sows in the early, middle and later periods of pregnancy are respectively greater than the set standards by 10.0%, 8.0% and 6.0%, the empty chewing ratios of the swinery are high, and the reproductive performance of the sows can be affected due to severe stereotyped behaviors caused by hunger.
Example two
200 sows at the early, middle and late stages of pregnancy are selected and randomly divided into two groups, 100 sows at each stage of each group are fed to a control group, fiber raw materials are added to the basic ration until the crude fiber is 7.5% (indexes such as other crude protein and digestion energy are the same as those of the control group), the basal ration is pre-fed for 3 days, and the feeding management procedure is the same as that of the above cases.
Observing the empty chewing proportion days, and setting the N value to be 7 days; setting a 7-sky chewing ratio variation coefficient threshold value as 10%; setting the average value threshold of the 7 sky chewing proportion of the pregnancies prophase population, the pregnancies metaphase population and the pregnancies anaphase population as 10 percent, 8 percent and 6 percent respectively.
The empty chewing proportion of the sows in each stage of the control group and the test group is counted respectively, and the result is shown in table 2. As can be seen from Table 2, the 7-sky chewing ratio variation coefficients of the sows at each stage of the control group and the test group are less than 10% of the set value, which indicates that the data collection result is stable, and the empty chewing observation is feasible 3 hours after the ingestion under the test condition. The air interface chewing proportion of the sows in the early gestation period, the middle gestation period and the later gestation period of the test group is obviously lower than that of the control group (P is less than 0.01) and is respectively less than 10%, 8% and 6% of the set value, which shows that the air interface chewing behavior of the sows in the test group is well controlled, and the improvement of the daily ration crude fiber level of the pregnant sows is effective in improving the hunger type stereotypy behavior of the sows.
TABLE 2 Effect of daily ration crude fiber level on sow empty chewing behavior
Figure BDA0002906370130000091
EXAMPLE III
200 sows in the early, middle and late stages of pregnancy are selected and randomly divided into two groups, 100 sows are respectively fed in each stage of each group, a control group is fed with 6% crude fiber basic ration, 2.5% high water-swelling fiber raw material (crude fiber is more than or equal to 43%, water-swelling volume is more than or equal to 12g/mL) is added into the basic ration in a test group, indexes such as crude protein, digestion energy and the like of the test group are the same as those of the control group, the test group is pre-fed for 3 days, and the feeding management program is the same as that of the embodiment.
Observing the empty chewing proportion days, and setting the N value as 5 days; setting 5 sky chewing ratio variation coefficient threshold value as 12%; setting the 5 sky chewing proportion average value thresholds of the pregnancies prophase population, the pregnancies metaphase population and the pregnancies anaphase population to be 10%, 8% and 6% respectively.
The empty chewing proportion of the sows in each stage of the control group and the test group is counted respectively, and the result is shown in table 3. As can be seen from Table 3, the variation coefficient of the sky chewing ratio of the sow 5 in each stage of the control group and the test group is less than the set value of 12%, which indicates that the data collection result is stable, and the empty chewing observation is feasible 3 hours after the ingestion under the test condition. The air interface chewing proportion of the sows in the early gestation period, the middle gestation period and the later gestation period of the test group is obviously lower than that of the control group (P is less than 0.01) and is respectively less than 10%, 8% and 6% of the set value, which shows that the air interface chewing behavior of the sows in the test group is better controlled, and the addition of the high water-absorbent swelling fiber raw material in the daily ration is effective for improving the hunger type stereotypy behavior of the sows.
TABLE 3 influence of high water-swellable fiber raw materials on the behavior of empty chewing of sows
Figure BDA0002906370130000101
Example four
In this example, the feeding schedule for pregnant sows in a pig farm is: in the early stage of pregnancy, breeding for 7 days to 21 days of pregnancy, and feeding for 2.5-3 kg/day; feeding for 2.2-2.5 kg/day in the middle gestation period of 50-90 days; in the later stage of pregnancy, 90 days of pregnancy are fed to obstetric table, and 3-3.5 kg/day is fed. Feeding 2 tons a day, respectively at the ratio of 8: 00 and 14: 00 feed was completed and observation time was selected at 3 hours post feeding, then at 11: 00 and 17: 00, during which no other operations are performed to disturb the herd, leaving the sow herd in a state of rest. The same time point was observed for 7 consecutive days. According to the feeding amount condition at different stages, setting the average value thresholds of 7 sky chewing proportion of pregnancies prophase population, pregnancies metaphase population and pregnancies anaphase population as 8%, 10% and 6% respectively.
And (3) observing the number of pigs with empty chewing behaviors in the pig group, respectively counting the number proportion of the empty chewing pigs of the sows in the early gestation period, the middle gestation period and the later gestation period every day, and calculating the average value, the standard deviation and the variation coefficient, wherein the specific experimental result is shown in table 4. As can be seen from Table 4, the variation coefficient of the empty chewing ratio of the sows at the middle and later stages of gestation is lower than the set value by 10%, and the result is stable and usable. According to the fact that the average result in the middle gestation period is higher than the set value by 10% and the average result in the later gestation period is lower than the set value by 6%, the empty chewing stereotypy behavior in the later gestation period is judged to be better controlled, the control in the middle gestation period is better, measures can be taken to improve the satiety of the sows and reduce the proportion of empty chewing sows. And if the proportional variation coefficient of the empty chewing sows of the sows at the early stage of gestation is more than 10 percent of the set value, judging that sample measurement deviation possibly exists in data acquisition and needing to be measured again.
TABLE 4 proportion of sows with open-mouth chewing behavior in sows of different stages of pregnancy
Index (I) Early pregnancy Middle term of pregnancy Late pregnancy
D1 7.5％ 12.5％ 5.0％
D2 10.0％ 12.0％ 5.5％
D3 11.0％ 13.5％ 5.5％
D4 10.5％ 13.0％ 5.0％
D5 11.0％ 12.5％ 5.7％
D6 8.5％ 12.0％ 6.3％
D7 9.5％ 12.5％ 5.5％
Standard deviation of 1.2％ 0.5％ 0.4％
Mean value of 9.7％ 12.6％ 5.5％
Coefficient of variation 12.6％ 3.9％ 7.5％
EXAMPLE five
200 sows in the middle of gestation are selected and randomly divided into two groups, 100 sows are fed into each group, the control group is fed with 6% crude fiber basic ration, the fiber raw material is added into the basic ration of the test group until 7.5% of crude fiber is added (other crude protein, digestion energy and other indexes are the same as those of the control group), the pre-feeding is carried out for 3 days, and the feeding management program is the same as that of the embodiment.
Observing the empty chewing proportion days, and setting the N value to be 7 days; setting a 7-sky chewing ratio variation coefficient threshold value as 10%; the average value threshold of the 7 sky chewing proportion of the middle-term pregnant population is set to be 10% according to the feed intake of the pig group.
The empty chewing ratio of the sows in the control group and the test group is counted respectively, and the result is shown in table 5. As can be seen from Table 5, the variation coefficient of the 7 sky chewing ratio of the sows at each stage of the control group and the test group is less than 10% of the set value, which indicates that the data collection result is stable, and the empty chewing observation is feasible 3 hours after the ingestion under the test condition. The proportion of the empty chewing of the sows in the middle of the gestation period of the test group is obviously lower than that of the control group (P is less than 0.01), and is respectively less than the set value by 10%, which shows that the empty chewing behavior of the sows in the test group is better controlled, and the improvement of the daily ration crude fiber level is effective for improving the hunger type stereotypy of the sows in the middle of the gestation period.
TABLE 5 influence of daily ration crude fiber level on the empty chewing ratio of sows at the early stage of gestation
Figure BDA0002906370130000111
Figure BDA0002906370130000121
EXAMPLE six
The pregnancies in step S1 are specifically the group consisting of sows bred from 7 days to 21 days of gestation, and the number of pigs in the pig group A is set as 100. The feeding management procedure is the same.
The number of days for observing the empty chewing ratio was set to 7 days. The observation time is prolonged, the observation time is adjusted to be 4 hours after ingestion, feeding is finished at 7 am and 30 minutes, the number of empty chewing sows is observed at 11 am and 30 minutes, and 13 in the afternoon: the feeding of 30 min is finished, 17 o' clock and 30 min are observed to observe the number of empty chewing sows.
Setting a 7-sky chewing ratio variation coefficient threshold value as 10%; the average value threshold of the 7 sky chewing proportion of the middle-term pregnant population is set to be 10% according to the feed intake of the pig group.
The empty chewing proportion of the sows at the early stage of gestation is counted, and the result is shown in table 6. As can be seen from table 6, the variation coefficient of the sky chewing ratio of 7 pregnant sows is less than 10% of the set value, which indicates that the data collection result is stable, and the empty chewing observation is feasible 4 hours after ingestion under the test condition. The average value of the empty chewing proportion of the pregnant sows measured under the test condition is less than 10% of the set value, which indicates that the empty chewing behavior of the pregnant sows is better controlled.
TABLE 6 air-interface chewing proportion of pregnancies of sows
Figure BDA0002906370130000122
Figure BDA0002906370130000131

Claims (9)

1. The method for evaluating the hungry stereotypy behavior of the pregnant sow is characterized by comprising the following steps of:
s1, dividing the sow population into a pre-pregnancy population, a mid-pregnancy population and a late-pregnancy population;
s2, setting the postprandial observation time of stereotypy behavior, respectively obtaining the proportion of empty chewing sows of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population in the observation time, and continuously observing for N days, wherein N is more than or equal to 3;
s3, respectively acquiring an average value and a standard deviation of N sky chewing ratios of the population in the early gestation period, the population in the middle gestation period and the population in the later gestation period according to the proportion of empty chewing sows, and acquiring a variation coefficient of the N sky chewing ratios according to the average value and the standard deviation;
s4, setting a threshold L1 of the N sky chewing ratio variation coefficient, and judging whether the variation coefficient of the N sky chewing ratio of the pregnancies early-stage population, the pregnancies middle-stage population and the pregnancies late-stage population is smaller than a threshold L1, if yes, judging that the corresponding population measurement result is stable, and entering the step S6; otherwise, judging that the data of the corresponding population has sample measurement deviation, and entering the step S5;
s5, delaying the observation time point after the stereotypy behavior, re-obtaining the proportion and the variation coefficient of the empty chewing sow of the corresponding population, and judging whether the variation coefficient of the N sky chewing proportion of the sow is smaller than a threshold value L1, if so, entering the step S6, otherwise, repeating the step S5;
s6, setting the N sky chewing ratio average value thresholds of the pregnancies of the middle-term population and the pregnancies of the postnatal population as A, B, C, and judging whether the air interface chewing ratio measurement results of the populations are respectively smaller than the corresponding thresholds, if so, judging that the stereotypy behavior of the sow population in the corresponding stage is better controlled, otherwise, judging that the stereotypy behavior of the sow population in the corresponding stage is poorer controlled, and finishing the evaluation process.
2. The method for evaluating the famine stereotypy of pregnant sows as claimed in claim 1, wherein said pregnancies of step S1 are specifically the population consisting of sows bred to 21 days of gestation; the population in the middle gestation period of S1 is specifically a population formed by sows between 22 days and 90 days of gestation; the population in the later gestation stage of S1 is specifically a population formed by sows from 91 th gestation to the birth bed.
3. The method of claim 1, wherein the number of pigs in the pregnancies prior to, middle and late pregnancies is no less than natural number D.
4. The method for evaluating the hungry stereotypy behavior of the pregnant sow as claimed in claim 1, wherein the step S2 is specifically as follows:
s2.1, setting observation time as N continuous days, wherein the observation time of each day comprises an observation time point in the morning and an observation time point in the afternoon;
s2.2, feeding before three hours of observation time in the morning, recording the number of empty chewing sows in the pre-gestation period population, the mid-gestation period population and the late-gestation period population, and acquiring the proportion of the empty chewing sows in the morning period;
s2.3, feeding before three hours of observation time in the afternoon, recording the number of empty chewing sows in the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population, and acquiring the proportion of the empty chewing sows in the afternoon;
s2.4, calculating the average of the proportion of the empty chewing sows in the morning and the proportion of the empty chewing sows in the afternoon to obtain the proportion of the empty chewing sows in the day;
s2.5, respectively obtaining the proportion of empty chewing sows of the pre-pregnancy population, the mid-pregnancy population and the late-pregnancy population for continuous N days by the method of the steps S2.2-S2.4.
5. The method of evaluating the hungry stereotypy behavior of pregnant sows as claimed in claim 4, wherein the criteria for the empty chewing sows in step S2.2 are: the sow has chewing action or the sow does not have the chewing action but the edge of the mouth corner has white foam.
6. The method for evaluating the hungry stereotypy behavior of pregnant sows as claimed in claim 5, wherein the average values of the samples in step S3 are specifically:
M1＝(P1+P2+...+PN)/N
wherein M is1Mean values of samples, P, representing the populationiIndicating the proportion of empty chewing sows of the population on day i, i ═ 1, 2.
7. The method as set forth in claim 6, wherein the standard deviation SD of the sample in step S3 is1The method specifically comprises the following steps:
Figure FDA0002906370120000031
8. the method as set forth in claim 7, wherein the variation coefficient CV in said step S3 is determined by the method of evaluating the famine stereotypy of the pregnant sow1The method specifically comprises the following steps:
CV1＝SD1/M1*100％。
9. the method as claimed in claim 7, wherein the step S5 of delaying the observation time point after the hungry stereotypy of pregnant sow comprises: the observation time point was delayed X minutes with the feeding time kept constant.
CN202110072488.9A 2021-01-20 2021-01-20 Evaluation method for hunger type notch board behavior of pregnant sow Active CN112734275B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110072488.9A CN112734275B (en) 2021-01-20 2021-01-20 Evaluation method for hunger type notch board behavior of pregnant sow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110072488.9A CN112734275B (en) 2021-01-20 2021-01-20 Evaluation method for hunger type notch board behavior of pregnant sow

Publications (2)

Publication Number Publication Date
CN112734275A true CN112734275A (en) 2021-04-30
CN112734275B CN112734275B (en) 2023-08-29

Family

ID=75592727

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110072488.9A Active CN112734275B (en) 2021-01-20 2021-01-20 Evaluation method for hunger type notch board behavior of pregnant sow

Country Status (1)

Country Link
CN (1) CN112734275B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140316248A1 (en) * 2002-07-26 2014-10-23 R. Christopher deCharms Methods for measurement and analysis of brain activity
WO2016030900A2 (en) * 2014-08-27 2016-03-03 Eyessessment Technologies Ltd. Evaluating test taking
CN108445746A (en) * 2018-01-25 2018-08-24 北京农业信息技术研究中心 A kind of intelligence feeds control method and device
CN110050709A (en) * 2019-06-10 2019-07-26 刘坚 A kind of fermenting bed padding that raising pregnant sow and its application and preparation method
CN110973372A (en) * 2019-11-25 2020-04-10 华南农业大学 Pregnant sow feed for reducing stereotypy and stillbirth rate of sows

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140316248A1 (en) * 2002-07-26 2014-10-23 R. Christopher deCharms Methods for measurement and analysis of brain activity
WO2016030900A2 (en) * 2014-08-27 2016-03-03 Eyessessment Technologies Ltd. Evaluating test taking
CN108445746A (en) * 2018-01-25 2018-08-24 北京农业信息技术研究中心 A kind of intelligence feeds control method and device
CN110050709A (en) * 2019-06-10 2019-07-26 刘坚 A kind of fermenting bed padding that raising pregnant sow and its application and preparation method
CN110973372A (en) * 2019-11-25 2020-04-10 华南农业大学 Pregnant sow feed for reducing stereotypy and stillbirth rate of sows

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
代发文 等；: "不同纤维原料对妊娠母猪刻板行为和粪便微生物的影响", 中国饲料, vol. 23, pages 35 - 39 *
刘惠芳;吴德;周安国;杨凤;: "饲喂水平对初产母猪妊娠期各阶段日增重、饲料利用效率和行为的影响", 中国畜牧杂志, no. 01, pages 32 - 34 *
张校军: "不同产圈模式对母猪及哺乳仔猪福利水平的影响", 中国优秀硕士学位论文全文数据库, no. 01, pages 050 - 225 *
李晶;顾宪红;: "猪的异常行为与其福利水平", 中国畜牧兽医, no. 07, pages 141 - 145 *
车立纯;刘秀梅;衣明纪;: "抽动障碍动物模型的行为学研究", 中国儿童保健杂志, no. 12, pages 1273 - 1276 *

Also Published As

Publication number Publication date
CN112734275B (en) 2023-08-29

Similar Documents

Publication Publication Date Title
Boligon et al. Genetic parameters and relationships of heifer pregnancy and age at first calving with weight gain, yearling and mature weight in Nelore cattle
Koketsu et al. Factors influencing the postweaning reproductive performance of sows on commercial farms
Buzanskas et al. Genetic associations between stayability and reproductive and growth traits in Canchim beef cattle
Luo et al. Estimation of genetic parameters for cumulative egg numbers in a broiler dam line by using a random regression model
Santana Jr et al. Effect of inbreeding on growth and reproductive traits of Nellore cattle in Brazil
Řehák et al. Relationships among milk yield, body weight, and reproduction in Holstein and Czech Fleckvieh cows.
Bermejo et al. Factors influencing birth and weaning weight in Canarian hair lambs
Vukasinovic Application of survival analysis in breeding for longevity
Bruegemann et al. Application of random regression models to infer the genetic background and phenotypic trajectory of binary conception rate by alterations of temperature× humidity indices
Ghafouri-Kesbi et al. An evaluation of maternal influences on growth traits: the Zandi sheep breed of Iran as an example
Xue et al. Association between lactation length and sow reproductive performance and longevity
Yoder et al. Lactation feed intake in purebred and F1 sows and its relationship with reproductive performance
CN112734275A (en) Method for evaluating hungry stereotypy behavior of pregnant sow
Shimizu et al. An application of the weighted regression procedure for constructing the lactation curve in dairy cattle
Tribout et al. Genetic relationships between weight loss in early lactation and daily milk production throughout lactation in Holstein cows
Brown et al. Expression of body weight, fleece weight and fibre diameter in across flock genetic evaluation
CN106172082A (en) For the method analyzing poultry growth performance automatic measurement system noisy data
Malanda et al. Optimal age of breeding gilts and its impact on lifetime performance
Lundeheim et al. Estimating genetic change in the Swedish pig population by using mixed model methodology (BLUP)
CN105123610B (en) A kind of hybridization production method of high-quality meat pig
Tretipskul et al. Season and breed effects on sperm production in PRRS free boars
Januś et al. The effect of selected non-genetic factors on key fertility indices in high-yielding Montbéliarde cows
Fimland et al. Studies on Dairy Records from Israeli-Friesian Cattle: II. Estimates of Components of Variance (Covariance) and of Parameters Related to these Components
CN113287570B (en) BF 2-generation Su purple pig growth and development trait detection method and application thereof
Robinson Genetic variances and covariances for live weight in Queensland beef cattle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant