The Boer hybrid mutton sheep is a fine variety in the main commercial meat sheep. It has a large body size, is resistant to rough feeding, has strong disease resistance, has a rapid weight gain, has a good meat taste, and has a high meat yield and feeding efficiency. However, to obtain the high efficiency of breeding Boer hybrid mutton sheep, it is necessary to adopt corresponding feeding and management measures. Its efficient feeding and management measures mainly include the following aspects: The Boer hybrid sheep, which is produced by Boer goats as a male parent, has the characteristics of rapid growth, high slaughter rate, and delicate meat quality. Since hybrid sheep grow faster than local sheep, especially in the six months to nine months after birth, the body weight can be double that of the local sheep. Therefore, the demand for nutrition is relatively high and cannot be treated in the same way as local sheep. It is necessary to make appropriate supplementary feeding on the basis of the local sheep's diet. The amount of supplementation is generally based on the nutritional requirements for weight gain and the resources of green feed for different seasons. For hybrid sheep born in spring, in places where there are many forage resources, except for pre-marketing and post-marketing fattening, supplementation is required. At other times, it may not be supplemented. The hybrid sheep born in autumn and winter generally have to feed, otherwise it will affect the early growth and development, the hybrid advantage will be not obvious. Supplementary feeding is usually supplemented with 0.5% to 1% of the weight of the hybrid sheep.
Breeding and management measures must be in place Boer crossbred sheep as a high-quality mutton sheep breeds, must use "good breed + good law" of feeding and management measures. Only by adopting scientific feeding and management methods can significant feeding benefits be achieved. The breeding and management of Boer hybrid mutton sheep mainly involves the following points:
Doing a good job of prevention and control of epidemic diseases is particularly important for keeping Boer hybrids. Prevention of epidemic disease using a "double-needle acupuncture and triple-four anti-miao" epidemic prevention effect is better.
The sheep's temperament is gentle, easy to manage, easy to fatten, and can reduce the smell and improve the quality of lamb. Lambs are usually cast off about two months after birth. Castration affects the growth and weight gain later.
Regular repellent parasites can severely affect the growth rate of hybrid mutton sheep. Therefore, the deworming work of hybrid mutton sheep is very important. In the spring and autumn, the flukes and worms are driven once every two months. The locusts are driven once every two months. The ectoparasites are driven once in spring, autumn and winter. In order to reduce the amount of insect repellent, avermectin anthelmintic can be used to repel external parasites.
Short-term fattening technology using short-term fattening technology can effectively increase the growth rate and lamb quality of Boer hybrid mutton sheep and increase economic benefits. The use of short-term fattening techniques for hybrid sheep before listing is particularly effective. Generally, one month before slaughter, under normal grazing conditions, hybrid sheep of about 6 months of age supplemented with 150 grams of corn, 100 grams of bran, 50 grams of soybean meal and 3 grams of bone meal each day. After about one month of fattening, the weight gain was 6 Kilograms to 8 kg.
When the breeding hybrids were listed and promoted in the same year, they are important for reducing winter and spring forage needs, avoiding “short winter deaths,†and increasing commodity rates. The hybridization of Boer sheep provided more favorable conditions for the lambs to be listed in the same year. Due to the early growth speed of hybrid sheep, the weight of the hybrid sheep can reach 25 to 30 kilograms around the age of 6 months. Even if hybrid sheep are born in the autumn, as long as they strengthen nutrition and provide reasonable supplements, they can grow to about 20 kilograms around 4 months of age. At this time, it is during the winter and twelfth lunar month and around the Spring Festival that it is the peak season for mutton sheep and the prices of sheep and mutton are high. . In addition, a reasonable arrangement of breeding time is also an effective measure to ensure that the lamb will be listed in the current year and achieve high returns.
Appropriate use of additives Boer crossbred mutton sheep have higher nutritional requirements, and normal diets cannot provide them with complete feed nutrition, so appropriate additives should be used. There are many types of additives, and their main functions are to supplement nutrients, promote growth, prevent diseases, and keep fit. Commonly used additives for sheep include mineral additives, rare earth feed additives, and insecticide-safe additives. Appropriate use of additives not only promotes muscle and fur growth, but also promotes bone development. At present, the market is more widely used to make rubbing bricks, just hang it in the sheep house for sheep to feed freely. However, it is prohibited to use hormonal additives that are banned by the state.