1 to 2 months after mating, the cows were diagnosed as having been diagnosed with estrus, and then the estrus performance was revealed. The disappearance of the original pregnancy traits was considered as recessive abortion.
The occurrence of recessive abortion within 2 months of the pregnancy of cows often occurs, which brings certain economic losses to the cattle industry and should cause the majority of cattle farmers to attach great importance to it. Therefore, experts recommend that in order to prevent dairy cows from producing recessive abortion during production, the following work should be done for reference by farmers.
1. Strengthen the nutrition cows to give rich, comprehensive and high-quality feeds rich in vitamin A, vitamin B2, vitamin B12, minerals, trace elements, etc. to prevent the fetus from dying halfway through nutritional deficiencies or nutritional imbalances and maintain normal pregnancy. To ensure the normal development of early embryos need. At the same time, we must stop feeding single cow feed or frozen, mildew feed, and potato, cottonseed cake and other toxin-containing feeds.
2. Careful Pregnancy Precautions Care must be taken when pregnancies are performed on mated cows. In early pregnancy, the embryo is in a free state, or is not tightly combined with the maternal uterine mucosa. If it is not careful and violent during pregnancy detection, the embryo may die and the attachment may not be successful. Especially when rectal examination should be gentle, so as not to damage the early embryos, resulting in an artificial abortion.
3, improve management for pregnant cattle to create a good living environment. After mating, the cows should be housed in a conditional manner, so as to avoid adverse impacts on the embryos caused by mutual collision and crowding during breeding; avoid fierce activities, do not cross the ditch, walk on the skating sewer, whip and kick. He shouted and frightened loudly; the breeder was not allowed to startle and beat the cows; he gave enough clean drinking water to drink cold and cold water during the cold season; pay attention to the cleanliness and hygiene of the cattle body and the environment, and not overeat or overwork.
4. Strengthen disease prevention and control Effective prevention and control of tuberculosis, salmonellosis, and brucellosis that can cause miscarriage. For livestock groups that are not affected, livestock are not introduced from the affected area; if they must be introduced, they should be imported from disease-free areas, and quarantined and reared under isolation conditions to ensure that the disease-free herds can be mixed. Regular quarantine is conducted every year and diseased cattle are found to be eliminated in time. Cows are vaccinated against attenuated Brucella vaccine 1 to 2 months before mating. Keepers, milkers, and veterinarians should regularly check the body and people with tuberculosis should not contact the herd. Strengthen the cleaning and disinfection of herds and the environment, and often pay attention to the health of dairy cows and carefully brush, especially to maintain the abdominal hygiene of pregnant cows and prevent the occurrence of vaginitis and metritis.
5, timely supplementation of cows 2 months after mating, should be promptly checked and found that abortion as soon as possible to fill, to avoid emptying for too long, resulting in lower breeding rate of cows, affecting the economic benefits of breeding.
6, the application of anti-flow drugs cows in the early stages of pregnancy, progesterone to prophylaxis, once a day, each time 50 to 100 mg, every other day, once every 3 to 4 times.
7, pay attention to daily medication after taking a large number of certain drugs after pregnancy, may lead to abortion of cows, including laxatives, such as sodium sulfate, magnesium sulfate, etc.; antipyretic analgesics, such as quinine sulfate, etc.; pseudocholinergic drugs, such as Carbamylcholine, pilocarpine nitrate, trichlorfon, etc.; stimulants, such as strychnine hydrochloride; misuse of uterine contractions, such as oxytocin; aphrodisiac drugs, such as diethylstilbestrol, prostaglandins, etc.; Drugs, glucocorticoids; such as cortisone acetate, hydrocortisone, dexamethasone, etc.; and other drugs contraindicated in pregnancy.
The occurrence of recessive abortion within 2 months of the pregnancy of cows often occurs, which brings certain economic losses to the cattle industry and should cause the majority of cattle farmers to attach great importance to it. Therefore, experts recommend that in order to prevent dairy cows from producing recessive abortion during production, the following work should be done for reference by farmers.
1. Strengthen the nutrition cows to give rich, comprehensive and high-quality feeds rich in vitamin A, vitamin B2, vitamin B12, minerals, trace elements, etc. to prevent the fetus from dying halfway through nutritional deficiencies or nutritional imbalances and maintain normal pregnancy. To ensure the normal development of early embryos need. At the same time, we must stop feeding single cow feed or frozen, mildew feed, and potato, cottonseed cake and other toxin-containing feeds.
2. Careful Pregnancy Precautions Care must be taken when pregnancies are performed on mated cows. In early pregnancy, the embryo is in a free state, or is not tightly combined with the maternal uterine mucosa. If it is not careful and violent during pregnancy detection, the embryo may die and the attachment may not be successful. Especially when rectal examination should be gentle, so as not to damage the early embryos, resulting in an artificial abortion.
3, improve management for pregnant cattle to create a good living environment. After mating, the cows should be housed in a conditional manner, so as to avoid adverse impacts on the embryos caused by mutual collision and crowding during breeding; avoid fierce activities, do not cross the ditch, walk on the skating sewer, whip and kick. He shouted and frightened loudly; the breeder was not allowed to startle and beat the cows; he gave enough clean drinking water to drink cold and cold water during the cold season; pay attention to the cleanliness and hygiene of the cattle body and the environment, and not overeat or overwork.
4. Strengthen disease prevention and control Effective prevention and control of tuberculosis, salmonellosis, and brucellosis that can cause miscarriage. For livestock groups that are not affected, livestock are not introduced from the affected area; if they must be introduced, they should be imported from disease-free areas, and quarantined and reared under isolation conditions to ensure that the disease-free herds can be mixed. Regular quarantine is conducted every year and diseased cattle are found to be eliminated in time. Cows are vaccinated against attenuated Brucella vaccine 1 to 2 months before mating. Keepers, milkers, and veterinarians should regularly check the body and people with tuberculosis should not contact the herd. Strengthen the cleaning and disinfection of herds and the environment, and often pay attention to the health of dairy cows and carefully brush, especially to maintain the abdominal hygiene of pregnant cows and prevent the occurrence of vaginitis and metritis.
5, timely supplementation of cows 2 months after mating, should be promptly checked and found that abortion as soon as possible to fill, to avoid emptying for too long, resulting in lower breeding rate of cows, affecting the economic benefits of breeding.
6, the application of anti-flow drugs cows in the early stages of pregnancy, progesterone to prophylaxis, once a day, each time 50 to 100 mg, every other day, once every 3 to 4 times.
7, pay attention to daily medication after taking a large number of certain drugs after pregnancy, may lead to abortion of cows, including laxatives, such as sodium sulfate, magnesium sulfate, etc.; antipyretic analgesics, such as quinine sulfate, etc.; pseudocholinergic drugs, such as Carbamylcholine, pilocarpine nitrate, trichlorfon, etc.; stimulants, such as strychnine hydrochloride; misuse of uterine contractions, such as oxytocin; aphrodisiac drugs, such as diethylstilbestrol, prostaglandins, etc.; Drugs, glucocorticoids; such as cortisone acetate, hydrocortisone, dexamethasone, etc.; and other drugs contraindicated in pregnancy.
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