1, selection of breeding time
The goat breeding time in autumn depends on the local natural conditions and the condition of the herd. It is generally in mid-late September- October. At this time, the weather is cool, the weather is suitable, and the feed resources are abundant. In addition, the ewe's estrus is generally strong, the ram's libido is strong, and the fertility rate of breeding is high.
2, selection and matching
Selection must be combined with matching, lamb breeding, and major economic purposes. It is necessary to select excellent male and female ewes with healthy physique, high productivity, high reproductive rate, and good adaptability to participate in breeding. Matching should be based on the comprehensive characteristics of the ewes, select the appropriate ram for mating, in order to obtain the best offspring. In principle, the rams are superior to the ewes in terms of their selection. The male and female rams that share the same shortcomings are not allowed to breed. Inadequacies between male and female rams cannot be matched.
3, breeding method selection
Goat breeding methods are divided into natural mating and artificial insemination.
Natural mating is divided into free mating and controlled mating. Freedom of mating is to mix males and females in a ratio of 1?25—1?35 and allow them to freely mate. The advantage of free mating is convenience and ease of management. The downside is that the rams fight against each other's ewes at each corner. They have no restrictions on mating and can't eat at ease. They both consume ram energy and affect ewes' feeding. They are prone to transmit some infectious diseases and parasite diseases, especially reproductive system diseases. . The date of lambing cannot be accurately grasped. Lambs have a wide gap between their ages, and it is impossible to identify lamb ancestry. It is not yet possible to maximize the use of rams. Controlling mating is to use the ram in the herd to test her feelings during the mating period, pick out the ewes, and mate with the designated rams. Controlling mating is a method between free mating and artificial insemination. The advantage is that it is conducive to the selection and matching of the work, can grasp the relationship of the ancestry of the sheep, control the mating date and lambing time, and increase the number of ram breeding, It can also make full use of excellent rams, which has a certain effect on improving the production performance of groups. The disadvantage of controlling mating is that it is time-consuming and cumbersome to manage. It cannot fully utilize the ram utilization rate.
Artificial insemination is the current advanced breeding method. This method does not require the direct mating of male and female sheep. With the help of sperm collection and insemination equipment, the semen of the ram is produced. After proper treatment, the ewes are fed to the ewes to make them pregnant. The advantage of artificial insemination is to reduce the breeding number of rams and save the cost of hay. A single ram can infuse 300-500 ewes, which can give full play to the breeding ability of excellent rams and improve the use of rams. Rate, to prevent the occurrence of disease, to be able to grasp the ancestry of the sheep, but also self-control the date of mating and lambing time. The disadvantage of artificial insemination is the need to set up the necessary equipment and equipment, and the operator must master the artificial insemination method. If the ovulation time of the ewe is not good enough, timely insemination will not affect the conception rate.
4. Breeding period management
In addition to strengthening the feeding and management of the ewes, the rams must pay special attention to the nutrition of the rams. Because the ram breeding task during this period is heavy and physical exertion is heavy, grazing nutrition alone can not keep up, not only will affect the health of the ram, but also reduce the breeding rate and conception rate. Therefore, in addition to enhancing grazing, ram stocks should be supplemented with protein feed. Practice has proved that when the protein in the diet is rich, the sexual libido of the ram is particularly high, the amount of ejaculate is also high, the sperm is strong in vigor, the density is high, and the conception rate of the ewes is also high. To this end, after the start of breeding, in addition to allowing them to eat enough grass, they should consider the ram's physique, mating tasks, and the desire to libido. They should feed 0.5kg to 1kg of wheat bran, beans, cakes and other condiments. 2 eggs, 3 eggs, 10 grams of bone meal, 15 grams of salt, three meals a day to feed, you can feed more at night so that it can be digested, absorbed and used during the night, restore strength, and help breed.
Our mission: To protect the health of ear, throat and nose with medical frontier knowledge and technological innovation.
Our vision: Leader in several niche markets of Otolaryngology.
Our values: Change, Enterprising, Share
Migraine Reliever, Head Massager, Eye Massager, Neck Massager
Ningbo Jiamai Internet Technology CO., Ltd. , https://www.jmcuhyd.com