Breeding method for natural mating with breeder roosters

Breeding methods of breeders, the most commonly used is the large group breeding and breeding of small rooms, roosters and hens should be selected according to production performance, physical fitness, appearance, development, genetic performance, variety characteristics. 1 A large group of breeding chickens is larger. A certain percentage of roosters are placed in the group of hens to make each rooster mate with the hen at random. This method has a high fertility rate but does not accurately know the parent of the chicks. Therefore, Only suitable for breeding. The size of the breeding flock may vary from 100 to 1000 depending on the circumstances. It is generally the year that the cock is sexually functional and can be equipped with more. The three-year-old cockerel has poor sexual activity and low competitiveness, and is generally not suitable for large-group breeding. Broilers breed in large numbers. This method is generally used when no descendants are determined and breeded. 2 The breeding of a small room, also known as a single room breeding, puts a cock in a small group of hens. This method is suitable for breeding farms. For small group breeding, there must be a separate chicken house, a closed egg nest, a cock and a hen, all of which must bear a leg number or a shoulder number. When collecting the eggs, the numbers of the male and the female must be indicated. In this way, the parents of the chicks can also know that the descendants can also be measured and breeded. The size of the group, depending on the breed, varies from 10 to 10 eggs and 8 to 12 chickens. Due to the unusual behavior and delirium of small-species breeding due to breeding, the fertilization rate of the eggs is lower than that of the large-species breeding. Therefore, many breeding sites have not adopted artificial insemination. 3 Auxiliary breeding The roosters are housed in separate chicken houses or cages of about 1 square meters. The hens are group rearing. When mating, 3 or 4 hens are placed in a rooster cage or house and allowed to mate. After mating. Take out the hens and return them to the original chickens. Then, mate the other hens to copulate with the roosters. In order to ensure a good fertilization rate, each hen will be bred with the roosters at least once a week. This method is suitable for the following three situations: 1 caged hens without artificial insemination; 2 grouped hens with self-occluded nests; 3 no single-breeding breeding farms. Auxiliary breeding can make full use of excellent roosters, but it takes more labor. 4 Family Breeding in the Breeding of the Same Female with Different Female Breeding In order to make full use of the breeding room, more breeding combinations are provided, and it is easier to determine the seed of the breeding rooster and to determine the family line. Rotation breeding is usually used. This method is mainly designed to use the aging of sperm in the fallopian tubes of mother birds, replacement of old sperm by new sperm, and continuous physiological processes such as fertilization. This method allows 12-15 hens to be housed in a breeding room and collects the offspring of 2-3 cocks in a breeding season. There are many rotation breeding programs. At the same time, the first rooster is placed, and then the egg is laid after 10 days. After the first cock was withdrawn on the 22nd day, the eggs produced by the hens 5 days before the 1st cock was withdrawn were all the 1st cock; when the 1st cock was gone, the 5th day after the lunch was put on Into the second cock, the egg was mixed for the next 10 days and could not be kept as a seed. The cockerel was kept from the 11th day after the 2nd cock was put in. The above procedures only for about 10 days can not be preserved seed eggs. If a single room is combined with artificial insemination, the time during which eggs are collected can be shortened. The program: In the first house, the first cock was bred and then taken out. The cock was left empty for a week. On the last day of the third week, the second cock was used to inseminate the hens every two days. Put the 2nd cock on the morning of the 3rd day. The eggs obtained in the first 3 weeks were the offspring of the first rooster. The eggs were mixed for the first 3 days of the fourth week and were not used for breeding. They were the offspring of the 2nd cock from the 4th day. Cage chicken artificial insemination rotation cock, but also can shorten the collection of egg-breaking time. 5 Small colony breeding cages are 1m wide, 2m long, 70cm high, and 60cm high. The cages are placed on iron frames and arranged in a single row or double row. 20-24 hens can be placed and 2-3 broilers. Its advantage is that it saves the cost of building a single room, and is more convenient than the artificial insemination of cage hens. Small groups of cages are suitable for breeding grounds.

Bottle

Airbrush Cleaning Pot,Airbrush Accessory,Cleaning Pot

Haosheng Pneumatic Machinery Co., Ltd. , http://www.nb-tattoo.com

Posted on