Breeding technology of Boer goat 1 Estrus control technology of Boer goat
For modern large-scale farms, synchronous estrus of Boer goat ewes is extremely important, because only under the premise of synchronous reproduction of ewes can breeding and production be carried out at the same time, and then fattening and slaughter can be carried out at the same time. If the ewe's estrus time is inconsistent, it will cause the ewe's production time to be uneven, and the management will become very troublesome when feeding.
Therefore, the synchronization estrus technology of Boer goat is particularly important, and the commonly used methods are estrus induction and artificial estrus intervention.
The so-called estrus induction means that ewes artificially induce estrus and ovulation to reproduce with the help of exogenous hormones or non-hormonal methods during estrus deficiency (less estrus).
The so-called artificial intervention in estrus usually refers to the use of drugs to induce estrus, including progesterone, vaginal suppository, prostaglandin injection and so on.
2. Boer goat breeding technology
In modern large-scale farms, in order to improve the utilization rate of breeding rams, free mating is definitely inappropriate, because when ewes are in estrus at the same time, it is a great challenge to the physical strength and energy of breeding rams.
Traditional free mating, a ram can breed 20~30 ewes, and a slightly advanced artificial mating can breed 50~60 ewes.
However, if artificial insemination is used, each breeding ram can raise 500 ewes. This greatly improves the utilization efficiency of breeding rams and reduces the cost of raising breeding rams.
Commonly used artificial insemination methods include laparotomy, vas deferens insertion and disposable plastic tube insemination. Bottle opener method is adopted in most areas of China.
3. Embryo transfer technology
Embryo transfer can be called "surrogate" of sheep, which can greatly improve the breeding efficiency of excellent varieties and reduce the feeding cost.
The offspring of sheep are often determined by well-developed embryos, and fewer sheep breeds are affected by the growth and development of embryos.
For example, an excellent Boer goat successfully gave birth to multiple embryos in one pregnancy. If allowed to develop freely, on the one hand, it will cause great pressure on the ewe's body, on the other hand, it is not conducive to the healthy growth of the fetus. Some embryos can be extracted and put into other recipients, which can reduce the survival pressure of high-quality Boer goats, realize multiple births and greatly improve production efficiency.
The focus of Boer goat breeding Boer goat is recognized as the best meat goat variety in the world, and we mainly use its meat production performance. As a ruminant, Boer goat is more tolerant to roughage than chicken, pig and other unit animals.
Pig, chicken and other unit animals need a lot of protein feed in the process of growth and development, which greatly increases the breeding cost. Boer goat, as a ruminant, can turn forage into high-quality protein, which gives us an important opportunity to reduce the feeding cost of Boer goat: to replace refined grain with forage to the maximum extent.
In China, a large number of agricultural and sideline crop straws are abandoned every year, and there are also a large number of weeds in the field. Collecting these straws and weeds and feeding them to Boer goats can not only reduce the breeding cost of Boer goats, but also produce a large amount of organic fertilizer, killing two birds with one stone. For farmers, reducing feed cost is equal to making more money, which is also the key point of Boer goat ruminant breeding.