Vitamin supplementation in pregnant cows can increase the survival rate of farrowing. Some diarrhea do not stand, twitch, and do not suck after birth. It is caused by calcium deficiency in the embryo. Some people with congenital blindness, even without eyeballs, may be due to vitamin deficiency during embryonic development, and calcium deficiency is directly related to vitamin A and vitamin D deficiency. Cattle breeding specialist Wang Jin has supplied vitamin A and vitamin D to 15 pregnant cows once a week, 15 pills of concentrated fish liver oil pills are administered twice a week until delivery, and another 15 pregnant cows are used as a control group without vitamin A supplementation. Vitamin D. Test results: Fifteen pregnant cows, one was not allowed to be pregnant because of the fetus, and the other 14 were born with 15 calves (one of the cows had twins), except for 1 with amniotic fluid infection and stillbirth, and the remaining 14 were Aberdeen. All survive. In the control group, there were 15 pregnant cows, 3 preterm births (all stillbirths), and 12 normal delivery. Except 5 survived, the rest died 1 to 2 days postpartum. The results of the trial showed that supplementing vitamin A and vitamin D to pregnant cows can greatly increase the survival rate of diarrhea.
Beef cattle supplement vitamin A weight gain
Beef cattle tend to lack vitamin A in spring. Because wheat straw, corn stalks, dry grass and other feed, vitamin A content is low. In addition, beef cattle feed more concentrates and vitamin A content in high-precision feeds. Beef cattle gain weight quickly when it is used for fattening, and the amount of vitamin A needs to increase. When the supply of vitamin A is insufficient, the intake of beef cattle decreases and the weight gain slows down. Therefore, we must pay attention to beef cattle supplement vitamin A. The method is: to start fattening beef cattle per day to take 100,000 units of vitamin A, once every 3 days, and then every 3 days, according to this cycle analogy. It is also possible to intramuscularly inject 5 to 1 million units of vitamin A and to inject once every 10 days.
Prevent vitamin D deficiency
1. In the absence of vitamin D, beef cattle are susceptible to rickets and cartilage disease. Therefore, vitamin D supplementation is required for beef cattle. If beef cattle spend more than 6 hours in the sun, there is no need to add additional vitamin D to the diet.
2. The effect of vitamin D deficiency on dairy cows, especially calves, pregnant and lactating cows, first of all slows down their growth and development and significantly reduces their production performance. Loss of appetite, poor growth and development, weight loss, rough hair, dull hair. At the same time, the process of ossification is blocked, the metacarpal and sacrum are swollen, the forelimb is bent forward or sideways, the knee joint is enlarged, and the arch is back. With the development of the disease, the diseased cows have reduced exercise and strong gait. Preventive measures: Vitamin D is the most abundant in fish liver and fish oil, but also in eggs, mammalian livers, and legumes. It is only rarely found in plant foods. Feeding animal protein feeds, especially fish liver, fish oil, and the like, and intramuscularly injecting vitamin D oils if necessary, in different stages of development, such as cattle herds, reared cattle, and mature cows. Usually also pay attention to dietary calcium and phosphorus content and its proportion.
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