CN114747537B - Sow oestrus management method - Google Patents
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- CN114747537B CN114747537B CN202210505835.7A CN202210505835A CN114747537B CN 114747537 B CN114747537 B CN 114747537B CN 202210505835 A CN202210505835 A CN 202210505835A CN 114747537 B CN114747537 B CN 114747537B
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- 230000012173 estrus Effects 0.000 title claims abstract description 93
- 238000007726 management method Methods 0.000 title claims abstract description 16
- 230000036760 body temperature Effects 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 23
- 230000000737 periodic effect Effects 0.000 claims abstract description 22
- 230000001965 increasing effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
- 238000009395 breeding Methods 0.000 description 6
- 230000001488 breeding effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 210000004246 corpus luteum Anatomy 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 208000024891 symptom Diseases 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 210000003097 mucus Anatomy 0.000 description 2
- 230000000422 nocturnal effect Effects 0.000 description 2
- 230000002611 ovarian Effects 0.000 description 2
- 210000001672 ovary Anatomy 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000282887 Suidae Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 206010000210 abortion Diseases 0.000 description 1
- 231100000176 abortion Toxicity 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940011871 estrogen Drugs 0.000 description 1
- 239000000262 estrogen Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009597 pregnancy test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K29/00—Other apparatus for animal husbandry
- A01K29/005—Monitoring or measuring activity, e.g. detecting heat or mating
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Biophysics (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The invention relates to the technical field of sow management. In order to solve the problem that whether the sow is in oestrus or not by adopting a body surface temperature measurement mode in the prior art, which leads to low accuracy of an identification result, the sow oestrus management method comprises the following steps: s1, monitoring body surface temperature and night exercise amount, and obtaining basic body temperature and basic night exercise amount according to the body surface temperature and the night exercise amount; s2, starting from the expected estrus day, obtaining a periodic average body temperature and a periodic night movement according to the monitored body surface temperature and the night movement; s3, judging whether the body temperature continuously rises and a falling inflection point appears and whether the night exercise quantity rises; and S4, when the body surface temperature is continuously increased and the descending inflection point appears, and the night exercise quantity is increased, judging whether the current period is in the expected estrus or not, if so, sending estrus early warning, and if not, sending manual intervention early warning.
Description
Technical Field
The invention relates to the technical field of sow management, in particular to a sow oestrus management method.
Background
Whether the sow breeds normally depends on accurate detection of oestrus and timely breeding of the sow, so timely and accurate oestrus identification and timely breeding are important for reducing the nonpregnant rate of the sow and improving the breeding efficiency of the sow. In the production of traditional detection methods, a boar is used for inducing estrus, and the back of a sow is pressed during the estrus inducing to see whether the static reflection occurs or not, so that the estrus is judged. The method is complex in operation and large in workload, and in order to ensure higher accuracy, the technical level and experience of staff are also required to be higher.
A series of physiological and behavioral changes will occur during sow oestrus, so in the recent years of rapid development of artificial intelligence technology and internet of things, many intelligent monitoring means for sow oestrus have emerged. Such as by measuring the change in electrical resistance of the vaginal mucus of the sow via an implantable resistance sensor. During oestrus in sows, the estrogen concentration increases. At this time, the resistance value of the vaginal mucus can be obviously reduced, and the accuracy of the measurement result is higher. However, this approach is inconvenient to operate and requires invasion into the sow and affects the sow. Or observing reflected wave images of corpus luteum or follicle on ovaries based on the B-mode images. The method for comprehensively judging the oestrus state according to the information such as the diameter of the follicle or the corpus luteum, the development position of the follicle, the thickness of the follicle wall, whether the follicle is broken or not and the like has the problem of inconvenient operation. In comparison, the body surface temperature measurement mode is more convenient. However, the body surface temperature measurement mode is convenient to operate, but the accuracy of the measurement result is low, so that the oestrus condition cannot be found in time, and the breeding cannot be performed in time, thereby influencing the sow breeding efficiency.
Disclosure of Invention
The invention aims to provide a sow oestrus management method, which aims to solve the problem that in the prior art, whether a sow oestrus occurs or not is identified by adopting a body surface temperature measurement mode, so that the accuracy of an identification result is low.
The basic scheme provided by the invention is as follows: a sow oestrus management method, comprising the steps of:
s1, monitoring the body surface temperature and the night movement quantity of a target sow, and obtaining a basic body temperature and a basic night movement quantity according to the body surface temperature and the night movement quantity from the weaning day to the predicted oestrus day of the target sow;
s2, starting from the expected estrus day, obtaining a periodic average body temperature according to the monitored body surface temperature, and obtaining a periodic night exercise amount according to the monitored night exercise amount;
s3, comparing the average periodic body temperature of the expected estrus day and later with the basic body temperature, judging whether the body surface temperature of the target sow continuously rises until an inflection point appears, comparing the periodic night exercise amount of the expected estrus day and later with the basic night exercise amount, and judging whether the periodic night exercise amount of the target sow rises;
and S4, when the body surface temperature of the target sow is continuously increased and a descending inflection point appears, and meanwhile, the period of the night movement quantity is increased, judging whether the current period is in the expected estrus of the target sow, if so, sending an estrus early warning, and if not, sending a manual intervention early warning.
The basic scheme has the beneficial effects that: after the analysis of the existing oestrus measuring method, the applicant finds that the accuracy of the measuring result is easily influenced by the environment and the situation of low accuracy occurs because the body surface temperature of the sow is greatly influenced by the environment. Although other means of measuring the temperature at other locations, such as the temperature at the rectal and vulvar surfaces, may be used. The temperature of the two positions is less influenced by external environment factors, the precision is higher, but the temperature of the two positions is inconvenient to monitor, and the temperature also needs to invade the sow body. Therefore, the body surface temperature measurement mode with low accuracy is still widely adopted at present.
In the scheme, the body surface temperature and the night movement before the weaning day to the expected estrus day are taken as the basic body temperature and the basic night movement, and then the body surface temperature and the periodic night movement are respectively compared based on the basic body temperature and the basic night movement from the expected estrus day. When the body surface temperature continuously rises until an inflection point appears and the period night exercise quantity rises, whether the current period is in the expected estrus of the target sow is also judged at the moment. If the current period is within the expected estrus of the target sow, judging that the target sow has estrus symptoms and enters the estrus. At the moment, oestrus early warning is sent to remind workers to guide target sows to perform mating in time. If the current period is not in the expected estrus of the target sow, namely in the normal estrus period, the target sow does not have estrus symptoms, at the moment, a manual intervention early warning is sent to remind workers to intervene in time so as to ensure that the target sow can estrus and breed smoothly.
In this scheme, in order to guarantee convenient operation, though still measure the body surface temperature of target sow. But in addition to this, the nocturnal exercise amount of the target sow is monitored. The comprehensive evaluation of the body surface temperature and the night exercise quantity is utilized to judge whether the sow is in oestrus or not, and the accuracy of the judging result can be improved. Also in the judgment, since the corpus luteum of the ovary rapidly degenerates after weaning of a normal sow in general, the follicle starts to develop, and then the oestrus starts to appear. Therefore, the body surface temperature and the night movement condition of the target sow under normal conditions can be reflected by the basal body temperature and the basal night movement which are obtained based on the monitoring data from the weaning day to the predicted oestrus day. The comparison and determination performed on the basis can further improve the accuracy of the determination result.
Further, in S3, the step of determining whether the body surface temperature of the target sow continuously rises and a falling inflection point appears is as follows: starting from the expected estrus day, on the basis of the basic body temperature, whether the cycle average body temperature ring ratio is increased is judged, after the ring ratio is judged to be increased, whether the body surface temperature in the cycle is continuously increased is judged, monitoring is continued after the continuous increase is judged, whether the body surface temperature is reduced is judged, and when the body surface temperature is judged to be reduced, the inflection point is judged to appear on the body surface temperature. The beneficial effects are that: the body surface temperature changes before and after the sow oestrus start tend to rise and then fall. Therefore, in the scheme, before the inflection point appears on the body surface temperature, whether the cycle average body temperature between different cycles is in an ascending trend is judged. After determining that there is an increasing trend with respect to the cycle average body temperature, it is also determined whether the body surface temperature in the cycle continues to increase until a decrease occurs. The body surface temperature change condition of the target sow is confirmed through comprehensive judgment of the two ascending trends, and the accuracy of the judgment result is further improved.
Further, the oestrus day was expected to be the 3 rd day after weaning of the target sow. The beneficial effects are that: in general, the ovarian corpus luteum rapidly degenerates after weaning in normal sows, and follicles begin to develop and begin to develop oestrus by day 3 to day 5. Therefore, in the scheme, the 3 rd day of the predicted estrus symptom is used as the predicted estrus day for monitoring, and the missing of monitoring data can be avoided, so that the accuracy of a judging result is ensured.
Further, estrus is expected to be 3 to 10 days after weaning of the target sow. The beneficial effects are that: considering that normal sows begin to develop oestrus on days 3-5 after weaning, the sows can be bred from day 7. Therefore, if the sow still has oestrus within 10 days after weaning, the artificial intervention such as oestrus should be timely performed, so that the optimal mating time is avoided from being missed, and the breeding efficiency of the target sow is further improved.
Further, the monitoring period for monitoring the nocturnal exercise amount of the target sow is preset to be 18:00 to 6:00 a night. The beneficial effects are that: in the scheme, the monitoring period of the night exercise amount is preset to be within the period of 18:00 of the current day to 6:00 of the next day, namely only the night exercise amount of 18:00 of the current day to 6:00 of the next day is extracted in the scheme, the artificial interference in the daytime, such as feeding, excrement cleaning, emotion searching and the like, can be eliminated, and the accuracy of the judging result is further improved.
Drawings
Fig. 1 is a flowchart of an embodiment of a sow estrus management method according to the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
an example is substantially as shown in figure 1: a sow oestrus management method, comprising the steps of:
s1, monitoring the body surface temperature and the night exercise amount of the target sow. Obtaining basic body temperature and basic night movement amount according to the body surface temperature and night movement amount from the weaning day to the predicted oestrus day of the target sow;
s2, starting from the expected estrus day, obtaining a periodic average body temperature according to the monitored body surface temperature, and obtaining a periodic night exercise amount according to the monitored night exercise amount;
s3, comparing the average periodic body temperature of the expected estrus day and later with the basic body temperature, judging whether the body surface temperature of the target sow continuously rises and has a descending inflection point, comparing the periodic night exercise amount of the expected estrus day and later with the basic night exercise amount, and judging whether the periodic night exercise amount of the target sow rises;
judging whether the body surface temperature of the target sow continuously rises and a descending inflection point appears, wherein the specific steps comprise: from the expected estrus date, it is determined whether the cycle average body temperature has risen in the cycle average body temperature on the basis of the basal body temperature. After the ring ratio is determined to be raised, it is determined whether the body surface temperature is continuously raised in the cycle. After the continuous rising is determined, monitoring is continued, and whether the falling is caused or not is determined. When the body surface temperature is judged to be reduced, judging that the body surface temperature is inflection points;
and S4, judging whether the current period is in the expected estrus of the target sow or not when judging that the body surface temperature of the target sow continuously rises and the falling inflection point appears and the period night exercise quantity rises. If yes, sending an oestrus early warning, and if not, sending a manual intervention early warning.
Considering that in general, the ovarian corpus luteum rapidly degenerates after weaning of a normal sow, follicles begin to develop, oestrus begin to appear by day 3-5, and can be bred by day 7. The oestrus date of the sow after weaning can be predicted according to the sow production file. If the estrus still does not exist after 10 days, manual intervention is needed for estrus promotion. Therefore, in this example, the expected estrus of the target sow was set to be the 3 rd day after weaning, and the expected estrus was set to be the 3 rd to 10 th day after weaning.
And the number of times of lying at night in the oestrus period of the sow is obviously increased compared with the number of times of lying at night in the non-oestrus period, and the abnormal increase of the quantity of exercise of the sow caused by the manual activities in the daytime, such as feeding, excrement clearing, oestrus searching and the like. Therefore, in the scheme, the monitoring period for monitoring the night exercise amount of the target sow is preset to be 18:00 of the current day to 6:00 of the next day so as to eliminate the interference of the daytime.
In the embodiment, when the body surface temperature and the night exercise amount of the target sow are monitored, the intelligent ear tag arranged on the target sow is adopted for monitoring. The monitored body surface temperature is the body surface temperature of the target sow, and the monitored night exercise amount is the night exercise amount of the target sow.
The specific implementation process is as follows: s1, extracting body surface temperature data and night exercise quantity data of a target sow through an intelligent ear tag on the current day to the current 3 rd day after weaning of the target sow, namely the current day after weaning, the current 1 st day after weaning and the current 2 nd day after weaning, and then obtaining a basic body temperature according to the monitored body surface temperature data. Taking 12 hours as a period, setting the intelligent ear tag to monitor every ten minutes, wherein the basic body temperature is the average body temperature in a period; and obtaining the basic night exercise amount according to the monitored night exercise amount data. During monitoring, the monitoring time is 18:00-6: the night exercise amount of 00 time period is taken as the night exercise amount of the day, and the night exercise amount of each day is taken as the basic night exercise amount.
S2, starting from the 3 rd day of weaning, taking 12 hours as a period, and monitoring the body surface temperature of the target sow every ten minutes to obtain the period average body temperature. On the basis of the basic body temperature, whether the cycle average body temperature ring ratio is increased or not is judged, and if the ring ratio is not increased, monitoring is continued for a cycle of 12 hours. If the ring ratio is judged to rise, the body surface temperature of the target sow is monitored every ten minutes with one hour as a period, and whether the average body temperature rises for 12 times continuously is judged. If not, continuing to monitor the body surface temperature of the target sow every hour for one period, if so, continuing to monitor the body surface temperature of the target sow every ten minutes for one period to obtain a new period average body temperature, and judging whether the period average body temperature is reduced. If the temperature is not reduced, the monitoring is still carried out continuously with the hour as a period, and if the temperature is reduced, the inflection point of the body surface temperature is judged.
Meanwhile, the night exercise amount of the target sow is monitored within the period of 18:00 of the current day to 6:00 of the next day to obtain the periodic night exercise amount, and whether the periodic night exercise amount rises is judged on the basis of the basic night exercise amount. If the night exercise amount is not increased, the night exercise amount is continuously monitored within the period of 18:00 of the current day to 6:00 of the next day. If rising occurs, comprehensive research is needed to judge whether the body surface temperature in the same period has a falling inflection point. If the body surface temperature has a decreasing inflection point and the periodic night movement quantity does not rise, the monitoring is continued. If the body surface temperature has a decreasing inflection point and the periodic night movement amount increases, the next determination is made. And judging whether the current period is within 3-10 days after weaning of the target sow. If the time is within 3-10 days after weaning, the oestrus early warning is sent at the moment. If the time is not within the 3 rd to 10 th days after weaning, sending a manual intervention early warning at the moment so as to remind the user of timely performing manual intervention, and ensuring that the target sow can successfully oestrus and breed.
In order to verify the accuracy of the determination of the sow oestrus management method disclosed in the embodiment, an experiment is performed by adopting a manual oestrus checking mode in the embodiment.
Specifically, after the multi-headed sow is weaned, oestrus time is determined by using the method and the artificial oestrus checking method, and in the experimental process, the detected pigs which fail to normally oestrus, abortion, oestrus return, negative B-ultrasonic pregnancy test and the like are removed, and the experimental results are as follows.
| Experimental results | Intelligent monitoring of oestrus only | Simultaneous detection of oestrus | Monitoring of starting conditions by manual investigation |
| Quantity (head) | 5 | 3 | 1 |
The experimental results show that the sow oestrus management method disclosed in the embodiment is effective, and the accuracy of oestrus identification can be improved.
The foregoing is merely an embodiment of the present invention, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present invention, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (4)
1. A sow oestrus management method is characterized in that: the method comprises the following steps:
s1, monitoring the body surface temperature and the night movement quantity of a target sow, and obtaining a basic body temperature and a basic night movement quantity according to the body surface temperature and the night movement quantity from the weaning day to the predicted oestrus day of the target sow;
s2, starting from the expected estrus day, obtaining a periodic average body temperature according to the monitored body surface temperature, and obtaining a periodic night exercise amount according to the monitored night exercise amount;
s3, comparing the average periodic body temperature of the expected day and later with the basic body temperature, judging whether the body surface temperature of the target sow continuously rises until a descending inflection point appears, comparing the periodic night movement amount of the expected day and later with the basic night movement amount, and judging whether the periodic night movement amount of the target sow rises;
the step of judging whether the body surface temperature of the target sow continuously rises and has a descending inflection point is as follows: starting from the expected estrus day, judging whether the cycle average body temperature ring ratio rises or not on the basis of the basic body temperature, judging whether the body surface temperature in the cycle continuously rises or not after judging that the cycle average body temperature ring ratio rises, continuously monitoring after judging that the cycle average body temperature continuously rises, judging whether the cycle average body temperature falls or not, and judging that the body surface temperature has inflection points when judging that the body surface temperature falls;
and S4, when the body surface temperature of the target sow is continuously increased and the descending inflection point appears, and the period night movement quantity is also increased, judging whether the current period is in the expected estrus of the target sow, if so, sending an estrus early warning, and if not, sending a manual intervention early warning.
2. The sow estrus management method according to claim 1, wherein: the predicted oestrus day is the 3 rd day after weaning of the target sow.
3. The sow estrus management method according to claim 2, wherein: the predicted estrus is 3-10 days after weaning of the target sow.
4. A sow estrus management method according to claim 3, characterized in that: the monitoring period for monitoring the night exercise amount of the target sow is preset to be 18:00 of the same day to 6:00 of the same day.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2437226A1 (en) * | 2003-07-03 | 2005-01-03 | Kouji Sasaguri | Method of predicting estrus and delivery date of cow, swine, horse or the like by analysis of frequency values and discovering disease of cow, swine, horse, or the like, as well as attachable apparatus for predicting estrus and delivery date and discovering disease, which is used for such method |
| JP5035861B1 (en) * | 2012-02-29 | 2012-09-26 | 茂夫 宇都宮 | Estrus reporting system |
| CN107711576B (en) * | 2017-09-18 | 2020-09-22 | 浙江利尔达物芯科技有限公司 | Sow oestrus identification method and system |
| CN108605861A (en) * | 2018-05-16 | 2018-10-02 | 贵州都匀市黔昌畜牧发展有限责任公司 | A kind of monitoring method and device of optimization insemination of sows |
| CN110991222B (en) * | 2019-10-16 | 2023-12-08 | 京东科技信息技术有限公司 | Object state monitoring and sow oestrus monitoring method, device and system |
| CN111248103B (en) * | 2020-01-09 | 2022-11-01 | 洛阳语音云创新研究院 | Livestock estrus detection method, device and equipment |
| CN113711944B (en) * | 2021-08-27 | 2023-03-03 | 河南牧原智能科技有限公司 | Sow estrus identification method, device and system |
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