First, grasp the birth weight of hybrid yaks.
One of the nutrient measures to increase the birth weight of hybrid calves is to start with the selection of the breed. At present, domestic and foreign recognized beef breeds include Hereford cattle, Simmental cattle, Halasaki cattle, Limousin cattle, Polomen cattle and Angus cattle. These beef cattle breeds were used as bulls, and then selected cows with excellent local individuals such as Taichuan Yellow Cattle, Mongolian Huang Rong Jing Huang Niu, Xuan Han Cattle, Ebian Flower Cattle, and Minjiang Yellow were used as female parents. The breeder bulls are mated or artificially inseminated for mating with local large, fertile cows. The hybrid yaks produced are adaptable, resistant to rough feeding, strong in disease resistance, have a large initial weight, grow fast, and have high feed returns.
Second, grasping the feeding of pregnant cows.
To ensure that the primary calf is of a large body and strong in physique, it is necessary to start from the feeding basis of pregnant cows. The average cow gestation period is 285 days. During the entire period of pregnancy, the nutritional requirements are particularly high. The nutrients absorbed by the cows, in addition to their own needs, are also deposited for fetal growth. Strengthen feeding and keep cows in the middle and upper class. Three months before delivery, the fetus grows faster and requires more nutrition. The cows should choose the excellent pastures near the cowshed for grazing, and it is best to replenish the improved grass on the legume forages so that the cows eat well. Grazing combined with coarse feeding. Daily supplementation of excellent artificial grasses and formulated feeds. With the concentrate feed 0.5 to 0.8 kg per day. And for clean drinking water. During the harsh winter season, hot and humid salt water is kept at 20°C. It is forbidden to feed forages such as spoilage, mildew, frost and snow, and pesticide contamination, as well as unclean, frozen and polluted drinking water.
Third, catch yak weaning weight gain.
Newborn yak to weaning, grows fast and requires extremely high nutrients. In order for the yak to obtain significant weight, the yak should be scientifically reared before weaning, to strengthen the feeding of suckling cows, to feed juicy, high quality green and tender pastures, and to increase legumes and feeds in order to ensure that cow milk is sufficiently bred to meet the requirements. Calves need to breastfeed. At the same time do a good job yak early feeding. Three months after the cow's birth, the milk is gradually reduced and it cannot meet the fast-growing nutritional needs of calves. Therefore, from the 15th day of age, fresh salt water and sugar water were sprayed on the fresh and juicy feed, and the cows learned to feed.
Fourth, catch beef cow fat later.
Hybrid yaks are generally fattening around 15 months of age. In the last two months, it is necessary to grasp fattening and promote the fullness of muscles and fat deposits. The fattening beef cattle uses 25-30 kilograms of distiller's grains, 5-7 kilograms of short forage grass, 1 kilograms of bran for 1.5 kilograms, 3-4 kilograms of corn meal, 1 kilogram to 1.5 kilograms of cake, 150 to 170 grams of urea, and 70 salt. ~ 80 grams of mixed formula. Daily use of 200 mg of rumen rumen, mixed in compound feed. The feeding method is the principle of feeding fodder first, then feeding compound feed, and finally drinking water. During the feeding period, a 1.2-meter short rope is used for the beef cattle to feed the grass in the trough. Reduce cattle consumption. Feeding timed, qualitative, quantitative, and administrative personnel. Feed 3 to 4 times a day feed, drink 2 to 3 times, mix the feed before the application of water mix wet, distiller's grains wet and dry mixed, then add bran, corn flour, cakes and salt and mix well. At the end of the cow's life, mix a little corn flour to allow the cow to eat the feed in the trough. Drinking water is done one hour after feeding. Feed 15 to 25°C clean hot water. Under the conditions that can not meet the supply with refined materials, the ratio of leguminous grasses such as white clover bean leaves, kudzu leaves, and arborescens leaves to grasses can be increased. The light salt water or urea solution is sprinkled on the pasture to increase the mouth-feel of the beef, increase the feed intake, make the cattle gain weight quickly, and fatten for a short time. The cowshed should be kept well ventilated, cool in winter and cool in summer, excreted in daily cleaning, clean and dry in circles, and regularly sanitize the pens and clean the utensils. Under good conditions, short-term fattening can be achieved through scientific feeding.
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