Spring is the peak period of cattle mating, but climate change is unpredictable and the incidence and mortality of cattle are extremely high. Therefore, it is necessary to strengthen the feeding and management in the spring, scientifically fertilize the fetus, ensure the safety of the mother and child, and increase the reproduction rate.
Empty cow breeding
Every day, each cow is fed with 50 grams of salt and 1-2 kilograms of mixed concentrates such as barley, corn and soybeans. After drinking water first, feed the grass, wait until the cows have eaten until the five or six percents are full, feed the mixed concentrate, and then drink the salt water, and wait until the cows rest for 15-20 minutes before going out. After grazing, prepare enough water and night grass to allow the cow to freely drink and eat. When the cow is too fat, it can increase the amount of jousting, and feed more coarse material and juicy feed. If you are too thin, make up the fine material and green feed, and strive to achieve a medium sensation before breeding.
Estrus cow mating
After the cow was estrus excited and uneasy, and constantly whispered, Gao Qiao, the vulva out of white translucent mucus, can be drawn into a 7-8 cm filament by hand. The period of estrus in cattle lasts 18 hours, generally lasting 12-22 hours, and ovulation occurs 10-15 hours after the end of estrus. Therefore, the suitable mating time of the cow is: if the estrus occurs in the morning, it will be bred at 8-10 pm on the same day, and will be supplemented once at 7-8 am the next morning; if the estrus is in the afternoon, the breeding will be on the next morning and the afternoon or evening will be used once.
Induction of ovulation in cows
The cow has normal genitalia but does not have estrus or misses the estrus period. It can use urine of pregnant women, estrodrol triadogens, etc. to induce ovulation of estrus in cows, and timely fertilize and prevent pregnancy.
Carefully feeding pregnant cows
Pregnant cows must meet their own and fetal nutritional needs, so to provide high-quality compound feed, the formula is corn 30%, soybean cake 20%, rice 15%, cottonseed cake 15%, rapeseed cake 5%, rice bran 15%, moderate bone meal and salt. 1-2 kilograms of fine material per day, enough green feed and ammoniated feed. Feeding time, less to add ground, drinking warm water, sunny days choose leeward sunny place grazing, enhance cattle body movement.
Preventing miscarriage and protecting mother and child
In the middle of pregnancy, the cattle should gradually reduce the intensity of exercise, and it is strictly forbidden to draw cold whip, perform urgency, turn sharp bends, and make heavy duty. One month before the birth, paralysis was stopped. If the cow is pregnant, vaginal mucus outflows, constantly looks back at the abdomen, and it is unsettled; late breast enlargement, oscillating urinary frequency posture, abdominal pain is obvious, fetal movement stop is abortion omen, to prompt treatment, progesterone can be used 0.5-1 grams Intramuscular injection, once daily, for 4-6 days. Due to the lack of exercise, the cow can be injected subcutaneously with 60-100 units of oxytocin, and the effect of oxytocin production is better.
Roller Hook Tomato Plant Support
Roller Hook Tomato Plant Support,Tomato Trellis-trellising,Greenhouse Tomato Plant,Accessory Trellising Roller Hook
JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.engreenhouse.com