CN108703109B - Method for maintaining high yield of laying hens - Google Patents
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- CN108703109B CN108703109B CN201810441320.9A CN201810441320A CN108703109B CN 108703109 B CN108703109 B CN 108703109B CN 201810441320 A CN201810441320 A CN 201810441320A CN 108703109 B CN108703109 B CN 108703109B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 241000287828 Gallus gallus Species 0.000 claims abstract description 45
- 238000009395 breeding Methods 0.000 claims abstract description 14
- 230000001488 breeding effect Effects 0.000 claims abstract description 14
- 230000008901 benefit Effects 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 235000013330 chicken meat Nutrition 0.000 claims description 44
- 238000005286 illumination Methods 0.000 claims description 31
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000005303 weighing Methods 0.000 claims description 17
- 230000003203 everyday effect Effects 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- 206010023644 Lacrimation increased Diseases 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 230000004317 lacrimation Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000035943 smell Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 230000035622 drinking Effects 0.000 claims description 5
- 230000001932 seasonal effect Effects 0.000 claims description 4
- 206010067484 Adverse reaction Diseases 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000006838 adverse reaction Effects 0.000 claims description 3
- 229940124599 anti-inflammatory drug Drugs 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000002354 daily effect Effects 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 244000144992 flock Species 0.000 claims description 3
- 230000036039 immunity Effects 0.000 claims description 3
- 230000003053 immunization Effects 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 230000035479 physiological effects, processes and functions Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 230000037396 body weight Effects 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017448 oviposition Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention discloses a method for maintaining high yield of laying hens, which comprises the following steps: s1: collecting data; s2: data application; s3: breeding chicks; s4: feeding in the growing period; s5: cultivating in an egg producing period; s6: performing spot check; s7: hygiene and epidemic prevention; s8: and (6) analyzing benefits. The method for maintaining high laying rate of the laying hens can enable the laying rate peak (more than 90 percent laying rate) of 1 laying hen to last for more than 12 months; more than 95% of laying rate is not less than 3 months; 2. the egg yield is not lower than 20 kg in 72 weeks; 3. the material consumption is 100 jin in 72 weeks; 4. the death and washout rate in 72 weeks is less than 7 percent; 5. the weight of the eliminated chicken is 100 g higher than the standard.
Description
Technical Field
The invention relates to the technical field of breeding, in particular to a method for maintaining high yield of laying hens.
Background
The management of the current chicken coop that the laying hen was raised is not good, and the environment is poor, can not in time regulate and control, does not investigate breeding in advance, does not pay attention to the collection analysis and the application of data, does not have the breed scheme of a set of system, and a lot of little details are paid attention to in the aspect of generally raising, because of raising careless regulation such as temperature, humidity, wind speed and illumination intensity in different seasons, leads to the laying hen to raise the environment and receives the influence, causes laying hen laying rate to descend easily, eggshell quality variation, and the stage of raising dies easily. Therefore, when the layer chicken improves the feeding management level, different feeding environments need to be adjusted according to different seasons, so that the layer chicken is evenly influenced by the environment, and the laying rate is kept stable.
Disclosure of Invention
The invention aims to overcome the defect that the seasonal environment is not adjusted by attention in the prior art and provide a method for maintaining high laying rate of laying hens. The method for maintaining high yield of the laying hens has the characteristics of high egg yield, stable feeding and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a method of maintaining high productivity of a laying hen, the method comprising:
s1: collecting data: recording production daily reports, index analysis of each batch of shank long body weight (young chicken, the period of production reaches 35 weeks), environment control data, water quality and environmental microorganism monitoring, immunity and monitoring data, medicine data and raw material monitoring data;
s2: data application: according to the standardized operation process, under the condition of adapting to the physiology and production of the chicken, the standardized operation process of the chicken farm is customized by a private person, first-line production personnel, first-line management personnel and technicians are trained, and an immunization program and a medication health-care scheme are planned; establishing a sound biological safety system;
s3: and (3) breeding chicks: selecting active healthy chicks with regular size, putting the chicks in an environment of 35-37 ℃ for breeding in winter, putting the chicks in an environment of 33-35 ℃ for breeding in summer, and adopting a 100W incandescent lamp with illumination intensity of 60Lux and illumination time of 24h when the chicks are 1-3 days old; adopting a 60W incandescent lamp at the age of 4-7 days, wherein the illumination intensity is 30Lux, the irradiation time is 22h every day, adopting a 40W incandescent lamp at the age of 2 weeks, 30Lux, the irradiation time is 20h every day, adopting a 25W incandescent lamp at the age of 3 weeks, 4 weeks and 5 weeks, the illumination intensity is 10Lux, the illumination time is 20h every day, and the illumination time is reduced by 3h every week from 6 weeks until the illumination time is kept unchanged after 8h every day, adopting a 25W incandescent lamp as a bulb, and the illumination intensity is 10 Lux; adjusting the nipple to the back height of the chicken in the first two days of drinking, maintaining the water temperature at 25.6 ℃ in the first three days, and lifting the waterline in the third day to enable the chicken to drink water at an angle of 45 degrees; from the fourth day, gradually raising the waterline; the chickens only drink water from the lower part of the water fountain at an angle of 70-80 degrees by the tenth day;
s4: feeding in the growing period: after two months, the chicks are removed from the brooding room and raised in the environment of 18-23 ℃, the relative humidity is 45-55%, a 5W LED energy-saving lamp is adopted, the illumination intensity is 5Lux, and the illumination time is kept unchanged for 8 hours every day;
s5: and (3) breeding in an egg producing period: setting proper parameters in the henhouse according to different seasons, wherein the proper temperature in winter is 13-18 ℃, the external temperature is 5-15 ℃, the standard wind speed in the henhouse is 0.1-0.2 m/s, the temperature difference per hour is 1 ℃, and the temperature difference between day and night is 3 ℃; the season change proper temperature is 18-25 ℃, the outside temperature is 10-20 ℃, the wind speed standard in the house is 0.5-1 m/s, the temperature difference per hour is 3 ℃, and the temperature difference between day and night is 5 ℃; the proper temperature in summer is 21-28 ℃, the external temperature is 20-37 ℃, the wind speed standard in the house is 1.5-2.5 m/s, the temperature difference per hour is 5 ℃, and the temperature difference between day and night is 8 ℃;
s6: spot check: selecting cage positions of different levels for weighing respectively, marking the coops, weighing chickens in the same coop position each time, weighing for 0-18 weeks, weighing every week, wherein the number of spot checks is more than 1%, and weighing at least 100 chickens; weighing the same day every week at the same time; in order to achieve the best accuracy, the chickens in the same cage position are weighed each time; the standard is as follows: uniformity is more than 85% in 0-3 weeks, uniformity is more than 80% in 4-6 weeks, uniformity is more than 85% in 7-12 weeks, uniformity is more than 85% in 13-16 weeks, uniformity is more than 90% in 17-18 weeks, 100 chickens are weighed in 18-30 weeks, uniformity calculation is more than 90%, 30-50 weeks, 100 chickens are weighed in 5 weeks, uniformity calculation is more than 90%, 100 chickens are weighed in 10 weeks after 50 weeks, uniformity calculation is more than 90%;
s7: and (3) hygiene and epidemic prevention: detecting ammonia gas, wherein after a detector enters a henhouse, if the detector smells ammonia smell but does not make eyes and nose, the concentration of the ammonia gas is 10ppm to 15 ppm; when the nasal lacrimation is sensed, the concentration is between 25ppm and 35 ppm; when the people feel difficult to breathe, the people cannot open the eyes and have no lacrimation, the concentration of the ammonia gas is 45ppm to 65ppm, the allowable concentration range of the ammonia gas in the henhouse is less than 20ppm, and the standard is exceeded, so that the adverse reaction of chicken flocks is caused, a ventilation system is started for ventilation, the air in the henhouse is kept fresh, the situation that the laying hens are poisoned due to the excessive concentration of the ammonia gas in the house is prevented, a trough and a water tank are not polluted by excrement, all appliances are frequently cleaned and disinfected, the excrement of the laying hens is found to be abnormal, and anti-inflammatory drugs are timely added into drinking;
s8: and (3) benefit analysis: for cost tables, investment budgets and profit analysis of each stage, the cost of each stage is as follows: comparing and comparing analysis formula cost management: raw material control, seasonal, staged formula regulation and control and labor cost.
Preferably, the incandescent lamps are distributed in an alternating staggered mode, and the heights of the two adjacent groups of incandescent lamps are different.
Preferably, the wind speed is less than 0.25 m/s in 0-7 days of age, less than 0.5 m/s in 4-14 days of age, less than 0.75 m/s in 15-21 days of age, less than 1 m/s in 22-28 days of age, 1-2 m/s in 29-8 weeks of age, and 1.5-2.5 m/s in 9 weeks of egg laying.
Preferably, the precision of the temperature and the humidity is +/-1 ℃ and +/-5% of the humidity.
Compared with the prior art, the invention has the beneficial effects that: 1. the laying rate peak (more than 90 percent of laying rate) of the laying hens can last for more than 12 months; more than 95% of laying rate is not less than 3 months; 2. the egg yield is not lower than 20 kg in 72 weeks; 3. the material consumption is 100 jin in 72 weeks; 4. the death and washout rate in 72 weeks is less than 7 percent; 5. the weight of the eliminated chicken is 100 g higher than the standard.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a method of maintaining high productivity of a laying hen, the method comprising:
s1: collecting data: recording production daily reports, index analysis of each batch of shank long body weight (young chicken, the period of production reaches 35 weeks), environment control data, water quality and environmental microorganism monitoring, immunity and monitoring data, medicine data and raw material monitoring data;
s2: data application: according to the standardized operation process, under the condition of adapting to the physiology and production of the chicken, the standardized operation process of the chicken farm is customized by a private person, first-line production personnel, first-line management personnel and technicians are trained, and an immunization program and a medication health-care scheme are planned; establishing a sound biological safety system;
s3: and (3) breeding chicks: selecting active healthy chicks with regular size, putting the chicks in an environment of 35-37 ℃ for breeding in winter, putting the chicks in an environment of 33-35 ℃ for breeding in summer, and adopting a 100W incandescent lamp with illumination intensity of 60Lux and illumination time of 24h when the chicks are 1-3 days old; adopting a 60W incandescent lamp at the age of 4-7 days, wherein the illumination intensity is 30Lux, the irradiation time is 22h every day, adopting a 40W incandescent lamp at the age of 2 weeks, 30Lux, the irradiation time is 20h every day, adopting a 25W incandescent lamp at the age of 3 weeks, 4 weeks and 5 weeks, the illumination intensity is 10Lux, the illumination time is 20h every day, and the illumination time is reduced by 3h every week from 6 weeks until the illumination time is kept unchanged after 8h every day, adopting a 25W incandescent lamp as a bulb, and the illumination intensity is 10 Lux; adjusting the nipple to the back height of the chicken in the first two days of drinking, maintaining the water temperature at 25.6 ℃ in the first three days, and lifting the waterline in the third day to enable the chicken to drink water at an angle of 45 degrees; from the fourth day, gradually raising the waterline; the chickens only drink water from the lower part of the water fountain at an angle of 70-80 degrees by the tenth day;
s4: feeding in the growing period: after two months, the chicks are removed from the brooding room and raised in the environment of 18-23 ℃, the relative humidity is 45-55%, a 5W LED energy-saving lamp is adopted, the illumination intensity is 5Lux, and the illumination time is kept unchanged for 8 hours every day;
s5: and (3) egg producing period culture: setting proper parameters in the henhouse according to different seasons, wherein the proper temperature is 13-18 ℃ in winter, the external temperature is 5-15 ℃, the standard wind speed in the henhouse is 0.1-0.2 m/s, the temperature difference per hour is 1 ℃, and the temperature difference between day and night is 3 ℃; the season change proper temperature is 18-25 ℃, the outside temperature is 10-20 ℃, the wind speed standard in the house is 0.5-1 m/s, the temperature difference per hour is 3 ℃, and the temperature difference between day and night is 5 ℃; the proper temperature in summer is 21-28 ℃, the external temperature is 20-37 ℃, the wind speed standard in the house is 1.5-2.5 m/s, the temperature difference per hour is 5 ℃, and the temperature difference between day and night is 8 ℃;
wind speed in different days of summer is less than 0.25 m/s at 0-7 days of age, less than 0.5 m/s at 4-14 days of age, less than 0.75 m/s at 15-21 days of age, less than 1 m/s at 22-28 days of age, 1-2 m/s at 29-8 weeks of age, and 1.5-2.5 m/s at 9 weeks of age.
S6: spot check: selecting cage positions of different levels, weighing, marking coops, weighing chickens in the same coop position each time, weighing for 0-18 weeks, weighing every week, wherein the number of spot checks is more than 1%, and weighing at least 100 chickens. The same day of the week, the same time was weighed. For best accuracy, the chickens are weighed at the same cage position each time. The standard is as follows: uniformity is more than 85% in 0-3 weeks, uniformity is more than 80% in 4-6 weeks, uniformity is more than 85% in 7-12 weeks, uniformity is more than 85% in 13-16 weeks, uniformity is more than 90% in 17-18 weeks, 100 chickens are weighed in 18-30 weeks every week, uniformity is more than 90% in calculation, 100 chickens are weighed in 30-50 weeks every 5 weeks, uniformity is more than 90% in calculation, 100 chickens are weighed in 10 weeks after 50 weeks, uniformity is more than 90% in calculation.
S7: and (3) hygiene and epidemic prevention: detecting ammonia gas, wherein after a detector enters a henhouse, if the detector smells ammonia smell but does not make eyes and nose, the concentration of the ammonia gas is 10ppm to 15 ppm; when the nasal lacrimation is sensed, the concentration is between 25ppm and 35 ppm; when the people feel difficult to breathe, the people can not open eyes and have more lacrimation, the concentration of the people is 45ppm to 65ppm, the allowable concentration range of ammonia in the henhouse is less than 20ppm, and the standard is exceeded, so that the adverse reaction of the chicken flocks can be caused, a ventilation system is started for ventilation, the air in the henhouse is kept fresh, the situation that the laying hens are poisoned due to the excessive concentration of the ammonia in the house is prevented, a trough and a water tank are not polluted by excrement, all appliances are frequently cleaned and disinfected, the excrement of the laying hens is found to be abnormal, and anti-inflammatory drugs are timely added into drinking water;
s8: and (3) benefit analysis: for cost tables, investment budgets and profit analysis of each stage, the cost of each stage is as follows: comparing and comparing analysis formula cost management: raw material control, seasonal, staged formula regulation and control and labor cost.
Compared with the prior art, the invention can ensure that the laying rate peak (more than 90 percent of laying rate) of the laying hens lasts for more than 12 months; more than 95% of laying rate is not less than 3 months; the egg yield is not lower than 20 kg in 72 weeks; the material consumption is 100 jin in 72 weeks; the death and washout rate in 72 weeks is less than 7 percent; the weight of the eliminated chicken is 100 g higher than the standard.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method for maintaining high yield of laying hens is characterized in that: the method comprises the following steps:
s1: collecting data: recording production daily reports, analyzing indexes of long-term weight of young chicken shins which are produced for 35 weeks, monitoring environment control data, water quality and environmental microorganisms, immunity and monitoring data, medicine data and raw material monitoring data;
s2: data application: according to the standardized operation process, under the condition of adapting to the physiology and production of the chicken, the standardized operation process of the chicken farm is customized by a private person, first-line production personnel, first-line management personnel and technicians are trained, and an immunization program and a medication health-care scheme are planned; establishing a sound biological safety system;
s3: and (3) breeding chicks: selecting active healthy chicks with regular size, putting the chicks in an environment of 35-37 ℃ for breeding in winter, putting the chicks in an environment of 33-35 ℃ for breeding in summer, and adopting a 100W incandescent lamp with illumination intensity of 60Lux and illumination time of 24h when the chicks are 1-3 days old; adopting a 60W incandescent lamp at the age of 4-7 days, wherein the illumination intensity is 30Lux, the irradiation time is 22h every day, adopting a 40W incandescent lamp at the age of 2 weeks, 30Lux, the irradiation time is 20h every day, adopting a 25W incandescent lamp at the age of 3 weeks, 4 weeks and 5 weeks, the illumination intensity is 10Lux, the illumination time is 20h every day, and the illumination time is reduced by 3h every week from 6 weeks until the illumination time is kept unchanged after 8h every day, adopting a 25W incandescent lamp as a bulb, and the illumination intensity is 10 Lux; adjusting the nipple to the back height of the chicken in the first two days of drinking, maintaining the water temperature at 25.6 ℃ in the first three days, and lifting the waterline in the third day to enable the chicken to drink water at an angle of 45 degrees; from the fourth day, gradually raising the waterline; the chickens only drink water from the lower part of the water fountain at an angle of 70-80 degrees by the tenth day;
s4: feeding in the growing period: after two months, the chicks are removed from the brooding room and raised in the environment of 18-23 ℃, the relative humidity is 45-55%, a 5W LED energy-saving lamp is adopted, the illumination intensity is 5Lux, and the illumination time is kept unchanged for 8 hours every day;
s5: and (3) breeding in an egg producing period: setting proper parameters in the henhouse according to different seasons, wherein the proper temperature in winter is 13-18 ℃, the external temperature is 5-15 ℃, the standard wind speed in the henhouse is 0.1-0.2 m/s, the temperature difference per hour is 1 ℃, and the temperature difference between day and night is 3 ℃; the season change proper temperature is 18-25 ℃, the outside temperature is 10-20 ℃, the wind speed standard in the house is 0.5-1 m/s, the temperature difference per hour is 3 ℃, and the temperature difference between day and night is 5 ℃; the proper temperature in summer is 21-28 ℃, the external temperature is 20-37 ℃, the wind speed standard in the house is 1.5-2.5 m/s, the temperature difference per hour is 5 ℃, and the temperature difference between day and night is 8 ℃;
s6: spot check: selecting cage positions of different levels for weighing respectively, marking the coops, weighing chickens in the same coop position each time, weighing for 0-18 weeks, weighing every week, wherein the number of spot checks is more than 1%, and weighing at least 100 chickens; weighing the same day every week at the same time; in order to achieve the best accuracy, the chickens in the same cage position are weighed each time; the standard is as follows: uniformity is more than 85% in 0-3 weeks, uniformity is more than 80% in 4-6 weeks, uniformity is more than 85% in 7-12 weeks, uniformity is more than 85% in 13-16 weeks, uniformity is more than 90% in 17-18 weeks, 100 chickens are weighed in 18-30 weeks, uniformity calculation is more than 90%, 30-50 weeks, 100 chickens are weighed in 5 weeks, uniformity calculation is more than 90%, 100 chickens are weighed in 10 weeks after 50 weeks, uniformity calculation is more than 90%;
s7: and (3) hygiene and epidemic prevention: detecting ammonia gas, wherein after a detector enters a henhouse, if the detector smells ammonia smell but does not make eyes and nose, the concentration of the ammonia gas is 10ppm to 15 ppm; when the nasal lacrimation is sensed, the concentration is between 25ppm and 35 ppm; when the people feel difficult to breathe, the people cannot open the eyes and have no lacrimation, the concentration of the ammonia gas is 45ppm to 65ppm, the allowable concentration range of the ammonia gas in the henhouse is less than 20ppm, and the standard is exceeded, so that the adverse reaction of chicken flocks is caused, a ventilation system is started for ventilation, the air in the henhouse is kept fresh, the situation that the laying hens are poisoned due to the excessive concentration of the ammonia gas in the house is prevented, a trough and a water tank are not polluted by excrement, all appliances are frequently cleaned and disinfected, the excrement of the laying hens is found to be abnormal, and anti-inflammatory drugs are timely added into drinking;
s8: and (3) benefit analysis: for cost tables, investment budgets and profit analysis of each stage, the cost of each stage is as follows: comparing and comparing analysis formula cost management: raw material control, seasonal, staged formula regulation and control and labor cost.
2. The method of claim 1, wherein the method comprises: the incandescent lamps are distributed in an alternating staggered mode, and the heights of the two adjacent groups of incandescent lamps are different.
3. The method of claim 1, wherein the method comprises: wind speed in different days of summer is less than 0.25 m/s at 0-7 days of age, less than 0.5 m/s at 4-14 days of age, less than 0.75 m/s at 15-21 days of age, less than 1 m/s at 22-28 days of age, 1-2 m/s at 29-8 weeks of age, and 1.5-2.5 m/s at 9 weeks of age.
4. The method of claim 1, wherein the method comprises: the precision of the temperature and the humidity is +/-1 ℃ and +/-5% of the humidity.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2057439C1 (en) * | 1994-06-10 | 1996-04-10 | Всероссийский научно-исследовательский и технологический институт птицеводства | Method for choosing young meat chicken hen for selection |
| FR2753601B1 (en) * | 1996-09-20 | 2000-09-08 | Inst Selection Animale | NEW HIGH PERFORMANCE LAYING CHICKENS AND NEW ROOSTERS AND NEW PARENTAL CHICKENS |
| CN101822236B (en) * | 2010-04-30 | 2012-02-01 | 西北农林科技大学 | Rearing method for correcting dysplasia of laying hens at growing period |
| CN105379668A (en) * | 2014-09-04 | 2016-03-09 | 广东省家禽科学研究所 | Method for improving production performance of laying hens |
| CN106973851A (en) * | 2016-01-18 | 2017-07-25 | 蔡智莉 | The efficient high-yield cultivation method of laying hen |
| CN106982779A (en) * | 2016-01-21 | 2017-07-28 | 朱永寿 | A kind of scientific and effective cultural method of laying hen |
| CN105918237A (en) * | 2016-04-20 | 2016-09-07 | 潜山县天胜农业生态科技发展有限公司 | Breeding method of laying hens |
| CN106489837B (en) * | 2016-10-27 | 2019-06-21 | 广西富凤农牧集团有限公司 | A kind of method for breeding of commercial chicken |
| CN107439484A (en) * | 2017-09-07 | 2017-12-08 | 霍邱县科瑞达禽业有限公司 | A kind of method of the method and its degree of control broiler brood time regularity |
| CN107711715A (en) * | 2017-11-30 | 2018-02-23 | 贵州纳雍源生牧业股份有限公司 | A kind of method for breeding of laying hen |
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