Technical method for quickly and forcibly moulting cherry valley meat breeding ducks

Abstract

The invention relates to a technical method for quickly and forcibly moulting cherry valley meat breed ducks. The method comprises the following steps: on the first day, cutting off water and feed for a whole group, picking and panning, grouping, fixing a fence and weighing; on the second day, the male ducks are not supplied with water, and the female ducks are supplied with water for 1 h and not supplied with water; on the third day, supplying 120g of feed to each male duck in the egg producing period, supplying water to each female duck for 1 hour in the morning and afternoon, and not supplying the feed; from the fourth day to the sixth day, the disabled ducks are selected and washed, and antibiotics are continuously fed for 3 days; from the seventh day to the tenth day, weightlessness is calculated through weighing, and when the weightlessness is 30%, main wing feathers and tail feathers are pulled out; from the 11th day to the 28th day, 50 g of feed is supplied to each female duck in the egg producing period, then 5 g to 140 g of feed is supplied to each female duck every day, illumination is conducted for 13 h, and then 1 h to 17 h is increased every week; on the 29th day, weighing 10% of each fence, grouping in 30 days when the weight reaches the standard, and grouping in 37 days when the weight is lower than the standard; on the 30th day or the 37th day, the residual ducks are selected and washed, the ducks are combined, and antibiotic fallopian tubes are fed for purification; on the 25th day, the 32nd day, the 39th day and the 46th day, flavivirus, H9, H5 + H7, duck liver + duck plague are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of waterfowl breeding, and in particular to a technical method for rapid forced molting of Cherry Valley meat breeder ducks. Technical Background

[0002] Moulting is a physiological phenomenon in which poultry adapt to the natural environment during their growth. It is related to the body's endocrine system. Due to the decline in ovarian function, the secretion of female hormones is insufficient, resulting in follicle atrophy. At the same time, the secretion of thyroid hormones that promote feather growth increases, and hormone secretion loses balance, leading to suspension of production and molting. After the first peak of egg-laying, Cherry Valley meat ducks should be forced to molt in order to shorten the off-season, increase economic benefits, enhance the resistance of breeder ducks, and improve the quality of breeding eggs. Forced molting can reduce breeding costs, shorten the molting time of meat ducks, improve the uniformity of molting, restore uniform egg laying, improve eggshell quality and hatching data, and obtain higher economic benefits.

[0003] Traditional forced molting is a technical measure that induces unique and reversible morphological and functional changes in the reproductive system of laying meat ducks by giving artificial stress (feed, water, light, etc.), so that the meat ducks stop laying eggs at the same time, lose weight, stop laying eggs, and lose feathers to replace new feathers, and quickly resume laying eggs after molting. Traditional forced molting can make meat ducks molt neatly, shorten the molting time, restore neat egg laying, improve eggshell quality, and obtain higher economic benefits. However, the current technology also takes 2-3 months, and the egg production rate can reach 30% in about 90 days, and the mortality rate during molting is as high as 15%, which has low economic benefits. Summary of the invention

[0004] The invention aims to provide a method for fast forced molting of Cherry Valley meat breeder ducks, which can shorten the molting time, advance the egg-laying peak period, and significantly reduce the mortality rate of meat breeder ducks during the molting process.

[0005] To achieve the above object, the present invention provides the following technical solutions: Preparation period:

[0006] S1 On the first day, water was cut off and feed was stopped for the whole flock of ducks. The ducks were culled, male and female ducks were separated into groups, and the ducks were placed in pens and weighed. The lighting was kept constant for 17 hours. The feed boxes and egg nests were collected and cleaned.

[0007] Further, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, culling in S1 refers to selecting and eliminating lame, whip-dropping, too small, or deformed male ducks and prolapsed, lame, too small, ascites, or deformed female ducks.

[0008] Furthermore, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, in S1, the male and female grouping and pen assignment refers to placing the male ducks in each pen into a pen alone, evenly adjusting the number of ducks in each pen, and counting the number of ducks in each pen.

[0009] Furthermore, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, weighing in S1 refers to weighing 10% of each pen (male and female) and finding the average value as the original data of molting weight loss of each pen and recording it in the molting weight loss statistics table.

[0010] Feed control period: On the second day of S2, male ducks were only provided with water but no feed, while female ducks were provided with water for one hour in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water had to be released from each pen to prevent them from being trampled.

[0011] On the third day of S3, male ducks were fed 120 grams of feed per duck and provided with normal water supply; female ducks were provided with water for 1 hour each in the morning and afternoon, but no feed was provided. They were exposed to natural light and were allowed to move freely inside and outside the pen. The management method was the same as above.

[0012] On the 4th to 6th day of S4, continue to pick out the remaining ducks and start feeding antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above.

[0013] On the 7th to 10th day of S5, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it has not reached the target, plucking the primary wing feathers and tail feathers can be postponed. The management method is the same as above.

[0014] Further, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, the feed supplied in S2 refers to egg-laying feed, which is spread evenly like a fan.

[0015] Furthermore, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, the antibiotics fed in S4 include at least one of neomycin, colistin, etc.

[0016] Furthermore, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, plucking the primary wing feathers and tail feathers in S5 refers to manually plucking the first seven feathers and tail feathers of the female duck's primary feathers, and the broken primary feathers must also be plucked out, and a large amount of multivitamin must be fed before plucking.

[0017] Molting period: From day 11 to day 28 of S6, after plucking the primary wing and tail feathers, the female ducks are initially fed 50 g of feed, and then the amount is increased by 5 g per day until it reaches 140 g per duck. The amount of feed for male ducks is increased by 5 g per day until it reaches 140 g per duck. The breeding management including materials, drinking water, duck flocks, hygiene, etc. is the same as that in the rearing period. The lighting hours are changed to 13 hours, and then the lighting hours are increased by 1 hour per week until it reaches 17 hours.

[0018] On the 29th day of S7, 10% of the male and female ducks in each pen are weighed. If their weight meets the standard, they are grouped together on the 29th day. If it is below the standard, the male and female ducks are given an additional 5 grams of feed per day to a constant 180 grams per duck, and they are grouped together on the 36th day.

[0019] On the 30th or 36th day of S8, select the male and female remaining ducks, group them together, feed antibiotics to the whole group, perform oviduct purification, and adjust the feeding method and time.

[0020] Further, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, the feed supplied in S6 refers to laying period feed, which is spread evenly like a fan for feeding.

[0021] Further, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, the standard weight of male ducks before grouping is 3.8-4 kg, and the standard weight of female ducks is about 3.2 kg.

[0022] Further, in the method for rapid forced molting of Cherry Valley meat breeder ducks as described above, if the ducks are grouped on the 30th day, the male and female ducks are fed with 5 grams of feed per day to a constant 180 grams of feed; if the ducks are grouped on the 36th day, they continue to be fed with 180 grams of feed.

[0023] Further, in a method for rapid forced molting of Cherry Valley meat breeder ducks as described above, the ducks are put into a feed box and an egg nest after being grouped together and seeing the eggs in S8, and the feeding time is 2 hours of free feeding, which is then increased by 2 hours per week until it reaches a constant 7 hours and then free feeding.

[0024] epidemic prevention: S9 was vaccinated with flavivirus vaccine on the 25th day, H9 vaccine on the 32nd day, H5+H7 vaccine on the 39th day, and duck liver+duck plague vaccine on the 46th day.

[0025] Furthermore, as described above, in the method for rapid forced molting of Cherry Valley breeder ducks, vaccination is administered by subcutaneous injection, and vitamins are fed before and on the day of vaccination.

[0026] Compared with the traditional forced molting technology for meat ducks, the beneficial effects of the present invention are: The method for rapid forced molting of Cherry Valley breeder ducks provided by the present invention is scientifically and reasonably designed. On the one hand, the method greatly shortens the molting time, and the breeder ducks begin to lay eggs before 45 days of age, effectively ensuring that the egg production rate in the second laying period is restored to about 95%; on the other hand, the molting survival rate reaches more than 95%, and compared with traditional forced molting, the mortality rate of breeder ducks during the molting period is reduced, thereby improving the breeding efficiency of the Cherry Valley breeder duck farm. DETAILED DESCRIPTION

[0027] The technical solution will be described clearly and completely below in conjunction with the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1 A method for rapid forced molting of Cherry Valley meat breeder ducks, comprising the following steps: S1 On the first day, water was cut off and feed was stopped for the whole flock of ducks. The ducks were culled, male and female ducks were separated into groups, and the ducks were placed in pens and weighed. The lighting was kept constant for 17 hours. The feed boxes and egg nests were collected and cleaned.

[0029] On the second day of S2, male ducks were only provided with water but no feed, while female ducks were provided with water for one hour in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water had to be released from each pen to prevent them from being trampled.

[0030] On the third day of S3 molting, male ducks were fed 120 grams of feed per duck (egg-laying feed) and provided with water normally; female ducks were provided with water for 1 hour each in the morning and afternoon, but no feed was provided. They were exposed to natural light and were allowed to move freely inside and outside the pen. The management method was the same as above.

[0031] On the 4th to 6th day of S4, continue to pick out the remaining ducks and start feeding antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above.

[0032] On the 7th to 10th day of S5, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it has not reached the target, plucking the primary wing feathers and tail feathers can be postponed. The management method is the same as above.

[0033] From the 11th to the 28th day of S6, after plucking the main wing feathers and tail feathers, the female ducks began to be fed 50 grams per duck (feed for the laying period), and then increased by 5 grams per day until 140 grams per duck. The breeding management of the ducks, such as materials, drinking water, ducks, and hygiene, was the same as that of the rearing period. The lighting was changed to 13 hours, and then increased by 1 hour per week until 17 hours.

[0034] On the 29th day of S7, 10% of the male and female ducks in each pen were weighed. If their weight met the standard, they were grouped together on the 30th day. If it was below the standard, the male and female ducks were given an additional 5 grams of feed per day to a constant 180 grams, and were grouped together on the 37th day.

[0035] On the 30th or 37th day of S8, select the male and female remaining ducks, group them together, feed antibiotics to the whole group, perform oviduct purification, and adjust the feeding method and time.

[0036] S9 was vaccinated with flavivirus vaccine on the 25th day, H9 vaccine on the 32nd day, H5+H7 vaccine on the 39th day, and duck liver+duck plague vaccine on the 46th day.

[0037] Embodiment 2 A method for rapid forced molting of Cherry Valley meat breeder ducks, comprising the following steps: S1 On the first day, water was cut off and feed was stopped for the whole flock of ducks. The ducks were culled, male and female ducks were separated into groups, and the ducks were placed in pens and weighed. The lighting was kept constant for 17 hours. The feed boxes and egg nests were collected and cleaned.

[0038] On the second day of S2, male ducks were only provided with water but no feed, while female ducks were provided with water for one hour in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water had to be released from each pen to prevent them from being trampled.

[0039] On the third day of S3 molting, male ducks were fed 130 grams of feed per duck (egg-laying feed) and provided with water normally; female ducks were provided with water for 2 hours each in the morning and afternoon, but no feed was provided. They were exposed to natural light and allowed to move freely inside and outside the pen. The management method was the same as above.

[0040] On the 4th to 6th day of S4, continue to pick out the remaining ducks and start feeding antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above.

[0041] On the 7th to 10th day of S5, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it has not reached that level, plucking the primary wing feathers and tail feathers can be postponed for 5-7 days. The management method is the same as above.

[0042] From the 11th to the 28th day of S6, after plucking the main wing feathers and tail feathers, the female ducks began to be fed 60 grams per duck (feed for laying period), and then increased by 5 grams per day until 140 grams per duck. The breeding management of the ducks, such as materials, drinking water, ducks, and hygiene, was the same as that of the rearing period. The lighting was changed to 13 hours, and then increased by 1 hour per week until 17 hours.

[0043] On the 29th day of S7, 10% of the male and female ducks in each pen are weighed. If their weight meets the standard, they will be grouped together on the 30th day. If it is below the standard, the male and female ducks will be given 5 grams of feed per day to a constant 180 grams, and will be grouped together after they reach the weight standard.

[0044] On the 30th or 37th day of S8, select the male and female remaining ducks, group them together, feed antibiotics to the whole group, perform oviduct purification, and adjust the feeding method and time.

[0045] S9 was vaccinated with flavivirus vaccine on the 25th day, H9 vaccine on the 32nd day, H5+H7 vaccine on the 39th day, and duck liver+duck plague vaccine on the 46th day.

[0046] Embodiment 3 A method for rapid forced molting of Cherry Valley meat breeder ducks, comprising the following steps: S1 On the first day, water was cut off and feed was stopped for the whole flock of ducks. The ducks were culled, male and female ducks were separated into groups, and the ducks were placed in pens and weighed. The lighting was kept constant for 17 hours. The feed boxes and egg nests were collected and cleaned.

[0047] On the second day of S2, male ducks were only provided with water but no feed, while female ducks were provided with water for 1.5 hours in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water had to be released from each pen to prevent them from being trampled.

[0048] On the third day of S3 molting, male ducks were fed 120 grams of feed per duck (egg-laying feed) and provided with water normally; female ducks were provided with water for 1.5 hours each in the morning and afternoon, but no feed was provided. They were exposed to natural light and allowed to move freely inside and outside the pen. The management method was the same as above.

[0049] On the 4th to 6th day of S4, continue to pick out the remaining ducks and start feeding antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above.

[0050] On the 7th to 10th day of S5, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it has not reached the target, plucking the primary wing feathers and tail feathers can be postponed. The management method is the same as above.

[0051] From the 11th to the 28th day of S6, after plucking the main wing feathers and tail feathers, the female ducks began to be fed 50 grams per duck (feed for the laying period), and then increased by 5 grams per day until 140 grams per duck. The breeding management of the ducks, such as materials, drinking water, ducks, and hygiene, was the same as that of the rearing period. The lighting was changed to 13 hours, and then increased by 1 hour per week until 17 hours.

[0052] On the 29th day of S7, 10% of the male and female ducks in each pen were weighed. If their weight met the standard, they were grouped together on the 30th day. If it was below the standard, the male and female ducks were given an additional 5 grams of feed per day to a constant 180 grams, and were grouped together on the 37th day.

[0053] On the 30th or 37th day of S8, select the male and female remaining ducks, group them together, feed antibiotics to the whole group, perform oviduct purification, and adjust the feeding method and time.

[0054] S9 was vaccinated with flavivirus vaccine on the 25th day, H9 vaccine on the 32nd day, H5+H7 vaccine on the 39th day, and duck liver+duck plague vaccine on the 46th day.

[0055] Comparative Example 1 A method for traditional forced molting of Cherry Valley meat breeder ducks, comprising the following steps: S1 On the first day, water was cut off and feed was stopped for the whole flock of ducks. The ducks were culled, male and female ducks were separated into groups, and the ducks were placed in pens and weighed. The lighting was kept constant for 17 hours. The feed boxes and egg nests were collected and cleaned.

[0056] On the second day of S2, male ducks were only provided with water but no feed, while female ducks were provided with water for one hour in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water had to be released from each pen to prevent them from being trampled.

[0057] On the third day of S3 molting, male ducks were initially fed 80 g / bird (growing feed), and the amount was increased by 5 g per day until it reached 120 g / bird, with normal water supply; female ducks were supplied with water for 1 hour each in the morning and afternoon, without any feed, and were exposed to natural light and allowed to move freely inside and outside the pen. The management method was the same as above.

[0058] On the 4th to 6th day of S4, continue to pick out the remaining ducks and start feeding antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above.

[0059] On the 14th day of S5, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it has not reached the target, plucking the primary wing feathers and tail feathers can be postponed. The management method is the same as above.

[0060] On the 15th day of S6, after plucking the main wing feathers and tail feathers, the female ducks were fed 100g / bird (growing period feed), and then increased by 5g every day until it reached a constant 180g / bird; the male ducks were fed 120g / bird (growing period feed), and then increased by 5g every day until it reached 200g / bird. The breeding management of the ducks, such as materials, drinking water, duck flocks, and hygiene, was the same as that of the growing period.

[0061] On the 28th day of S7, lighting facilities were installed and the lighting hours were changed to 13 hours. Thereafter, the lighting hours were increased by 1 hour per week until 17 hours.

[0062] On the 42nd day of S7, 10% of the male and female ducks in each pen were weighed to see if their weights met the standard. If they met the standard, they were grouped together on the 43rd day, otherwise, they were grouped together after a delay of one week. The male and female ducks were selected and grouped together, and antibiotics were given to the whole group, and the oviduct was cleaned once.

[0063] S8 On the 43rd or 50th day, select the male and female remaining ducks, group them together, put them in feed boxes and egg nests, change the rearing feed to laying feed, and allow free feeding for 2 hours. Thereafter, increase the feeding time by 2 hours each week until it reaches a constant 7 hours, after which they can feed freely.

[0064] S9 was vaccinated with flavivirus vaccine on the 32nd day, H9 vaccine on the 39th day, H5+H7 vaccine on the 47th day, and duck liver+duck plague vaccine on the 52nd day.

[0065] The present invention selects 2840 Cherry Valley meat breeder ducks from the same group, with 710 ducks in each group, and performs breeding management according to Examples 1 and 2 and Control Ratios 1 and 2, respectively. The molting production data of each group are shown in Table 1: Example 1 Example 2 Example 3 Comparative Example 2 Number of survivors 710 710 710 710 Number of dead items / pieces 35 34 34 89 Feather survival rate / % 94.9 95.2 95.1 87.5 Egg time Day 44 Day 45 Day 44 Day 67 Egg production rate 30% time 57 58 58 80 Egg production rate 90% time 65 65 66 92 Peak egg production 95.6 95.3 94.8 91.4 The molting survival rates of Examples 1 to 3 all reached about 95%, the egg-laying time was about 45 days, and the peak egg-laying rate reached 95%.

[0066] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification.

[0067] The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for rapid forced molting of Cherry Valley meat breeder ducks, comprising the following steps: S1. On the first day, the whole flock of ducks was deprived of water and feed, and they were culled, separated into male and female groups, and placed in pens and weighed. The light was kept on for 17 hours without change, and the feed boxes and egg nests were recovered and cleaned; S2. On the second day, male ducks were only provided with water but no feed. Female ducks were provided with water for one hour in the morning but no feed. They were allowed to move freely in the pen. When female ducks were drinking, water was released from each pen to prevent them from being trampled. S3. On the third day, male ducks were fed 120 grams of feed each and provided with water as usual; female ducks were provided with water for 1 hour each in the morning and afternoon, but were not fed, exposed to natural light, and allowed to move freely inside and outside the pen. The management method was the same as above. S4. On the 4th to 6th day, continue to cull the leftover ducks and start feeding them antibiotics for 3 consecutive days. Expose them to natural light and allow them to move freely inside and outside the pen. The management method is the same as above. S5. On the 7th to 10th day, weigh and calculate the weight loss rate and make a record. When the weight loss reaches 30%, start plucking the primary wing feathers and tail feathers. If it does not reach the target, plucking the primary wing feathers and tail feathers can be postponed. The management method is the same as above. S6. From the 11th to the 28th day, after plucking the main wing feathers and tail feathers, the female ducks are fed 50 grams of feed per duck, and then the feed is increased by 5 grams per day until it reaches 140 grams per duck. The feed, drinking water, duck flock, hygiene and other breeding management are the same as those in the rearing period. The light hours are changed to 13 hours, and then the light hours are increased by 1 hour per week until it reaches 17 hours. S7. On the 29th day, 10% of the male and female ducks in each pen are weighed. If the weight meets the standard, they are grouped together on the 29th day. If it is below the standard, the male and female ducks are fed 5 grams of feed per day to a constant 180 grams per duck, and they are grouped together on the 36th day. S8. On the 30th or 36th day, select male and female ducks, group them together, feed antibiotics to the whole group, perform oviduct purification, and adjust the feeding method and time; S9, respectively, on the 25th day, give the yellow virus vaccine, on the 32nd day, give the H9 vaccine, on the 39th day, give the H5+H7 vaccine, and on the 46th day, give the duck liver+duck plague vaccine.

2. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S1: Sorting means picking out lame, whip-dropped, too small, or deformed male ducks, and prolapsed, lame, too small, ascites, or deformed female ducks. Separating male and female ducks into groups and assigning pens means placing the male ducks in each pen into a separate pen, adjusting the number of ducks in each pen evenly, and counting the number of ducks in each pen; Weighing means weighing 10% of each pen (male and female) and finding the average value as the original data of molting weight loss in each pen and recording it in the molting weight loss statistics table.

3. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S2: The feed supplied refers to the egg-laying period feed, which should be spread evenly like a fan.

4. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S4: The antibiotics administered include at least one of neomycin and colistin.

5. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S5: Plucking the primary wing feathers and tail feathers means plucking the first seven feathers and tail feathers of the female duck's primary feathers manually. Broken primary feathers must also be plucked out, and a large amount of multivitamin must be fed before plucking.

6. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S7: The standard weight of male ducks before being grouped is 3.8-4 kg, and the standard weight of female ducks is about 3.2 kg.

7. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S8: If the ducks are grouped together on the 30th day, increase the feed by 5 grams to 180 grams per day for male and female ducks; If the pigs are grouped together on the 36th day, continue to feed them 180 grams of scattered feed.

8. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: In step S8: After the chickens see the eggs, they are put into the feed box and egg nest. The feeding time is 2 hours for free feeding, and then increased by 2 hours every week until it reaches a constant 7 hours, after which they can feed freely.

9. The method for rapid forced molting of Cherry Valley meat breeder ducks according to claim 1, characterized in that: Vaccines are administered subcutaneously, and vitamins are fed before and on the day of vaccination.