What is the general cause of death of calves, what are the preventive measures?

A, the cause of death analysis

1, due to the calf death caused by difficult labor

Due to the difficulties of the mother cow delivery or manually assisted delivery improperly will cause some of the newborn calf disease, such as inhalation of amniotic fluid caused by asphyxia pseudo-mortality or foreign body pneumonia; limb strain, dislocation, and so on. The main reason for this situation is the poor sense of responsibility of the delivery personnel, technology is not pass, the cattle farm recently adjusted by the breeding staff part-time delivery, often on the cow delivery observation is not timely, resulting in rupture of the amniotic fluid of the cow or cause injury.

2, due to improper care caused by calf death

Newborn calves after birth, due to improper care, prone to a variety of diseases, such as colds, pneumonia, constipation, diarrhea, umbilical cord inflammation, umbilical ureteric fistula and joint sprains, bruises, etc., these diseases are very easy to cause calf death, individual calf treatment does not die will also leave sequelae and forced to phase out; due to improper care of the calf is frozen to death, card death also The first time I saw this, I was in the middle of the night, and I was in the middle of the night.

3, calf deaths due to failure of prenatal feeding management of cows

Pregnant cows due to the lack of exercise due to a small playground, coupled with poor feeding environment, drinking water restrictions, feed nutrition is not scientific easy to cause difficult to give birth to a cow or mother after giving birth to a weak body, post-partum diarrhea, often leading to calf deaths.

4, the calf deaths caused by old and sickly cows

The old and sickly cows are weak, declining performance, or even have lost production capacity, some pre-partum udder has been swollen and hard pus, no milk after birth, these cows are conceived if the feeding management can not keep up with the phenomenon of stillborn weak fetus or difficult to give birth to a calf, the natural survival rate is not high. In addition, if you do not feed the calf at regular intervals, the milk temperature is high and low will easily cause calf diarrhea, intestinal cramps, condylomata and other diseases; hygiene and disinfection is not strict is also easy to make the calf suffers from E. coli, coccidiosis and other diseases, which can lead to the death of the calf.

Two, preventive countermeasures

1, strengthen the feeding management of cows and disease control Lactating cows in normal dry milk has been more than 300 days of lactation, plus has been pregnant for 7 months, the nutritional metabolism has been in a negative balance, so in the cow before giving birth to ensure that 60 days of dry milk, in order to facilitate the mammary gland rest and regeneration to meet the development needs of the fetus and recovery of the mother cow's physical strength; this relates to the mating This is related to the management of the breeding work, often due to the farm breeding work is not good, affecting the fertilization and then affect the normal dry milk, resulting in the formation of a vicious circle of innate malnutrition of calves; in addition, dry milk period should be limited to feed too much silage and energy feed, from less to more appropriate increase in concentrates, concentrates, nutrient formulations should be scientifically comprehensive in order to prevent breast edema; attention to the balance of calcium and phosphorus and the appropriate supplementation of sodium chloride to prevent the occurrence of postpartum paralysis and anorexia, the old, weak, sick and disabled cows should be as early as possible. The old, weak, sick and disabled cows should be eliminated as soon as possible. In short, only to improve feeding management, to ensure the balance of nutritional supply and demand, to ensure the health of the mother cow, in order to make the newborn calf body health.

2, science and timely delivery, to ensure that the mother and child safe delivery personnel to strengthen the observation of the cow before delivery, there are signs of labor should be rushed into the maternity ward to wait for the birth of a fully prepared to assist in the preparatory work, to prevent the birth of a helpless, do not know what to do; maternity ward should be paved with soft bedding, the environment should be spacious and quiet health; cows into the maternity ward to wait for the birth of a cow should be paid close attention to the time of the amniotic breakage of the water to assist in the birth of a cow first with 0.2% potassium permanganate solution to wash the vulva, midwife should cut the nails short and polish disinfection to prevent scratching the cow's birth canal and infected with bacteria; if encountered difficult labor, and no experience in midwifery, to quickly ask the veterinarian and experienced personnel to help; young calves should be born quickly around the mouth and nose to wipe the mucus and amniotic fluid or inverted calf to let the amniotic fluid out, to avoid inhalation of lungs; calves to move into the calf cage action should be gentle, to prevent injuries The calf should be moved into the calf cage gently to prevent injury, and the umbilical cord should be cut off in a normal operation and sterilized with tincture of iodine in time to prevent inflammation and tetanus and other diseases.

3, carefully feeding dry cows, increase the movement of dry cows should be carefully cared for, carefully fed, feeding density should be appropriate, the conditions of the farm to let it free free range, tethered farms in the sunny days should be more to let the cows go out to the playground walks to increase the amount of exercise, can not be violent to drive cows in order to prevent the abortion of the cows, cattle beds should be skidding ground to prevent the cows from falling hurt; the other absolutely can not be fed with mold and rotten fodder.