-
About Qingfeng
-
-
-
Qingfeng, Shandong | Protective measures for main perinatal diseases of dairy cows
Release time:
2021-07-16
Solve the problem of maternal reproduction (e. g. long interval of parity, repeated infertility, frequent miscarriage, undergrowth) Extend the peak period of lactation; Increase milk yield; Extend the life of female animals; Improve the comprehensive health index of dairy cows and reduce the incidence of dairy cows (e. g. mastitis, hoof disease). Cow pica disappears (gnawing wood, licking hair, licking urine, gnawing plastic) and the fur is smooth. Promote food digestion, improve feed utilization and save concentrate.
The perinatal period of dairy cows refers to the period of 2 weeks before delivery to 2 weeks after delivery, that is, 1 month before and after delivery. The perinatal period is short, but it is the critical period of dairy cow production and lactation, and it is also a period of rapid physiological changes. The cow's resistance is reduced and it is very easy to get sick. The prevalence rate of perinatal cows is higher than that of cows in the middle and late stages of milk production. Mastering the common diseases and prevention and control measures such as placenta retention, ketonemia and postpartum paralysis of perinatal cows can ensure the health of cows through the perinatal period.
1.1 Overview
Placenta retention refers to an obstetric disease in which a cow cannot discharge the placental garment within a certain period of time after the birth of the fetus. It is also called placental garment retention, including both total and partial placental garments. Sick cattle generally have no systemic symptoms, only feeding and lactation decreased. Systemic symptoms occur only when uterine atony or trauma occurs.
1. 2 Causes
1.2.1 Physiological factors
Cow fetal placenta and maternal placenta are closely linked; placenta is immature or aging; too many fetuses, too large or too much fetal water; increased age and parity lead to uterine contraction weakness, will cause fetal wear.
1.2.2 Pathological factors
Dairy cows during pregnancy by Brucella, mastitis, laminitis, peritonitis and other infections, resulting in uterine or placental inflammation so that the fetal placenta and maternal placenta adhesion, resulting in the afterbirth.
1.2.3 Nutritional factors
Poor feeding management, unbalanced nutrition, poor physique, single feed, lack of vitamins, calcium and selenium, insufficient exercise, not timely breastfeeding of offspring after delivery, and over-lean or over-fat cattle can all increase the incidence of placenta failure.
Solve the problem of maternal reproduction (e. g. long interval of parity, repeated infertility, frequent miscarriage, undergrowth)
Extend the peak period of lactation; Increase milk yield; Extend the life of female animals;
Improve the comprehensive health index of dairy cows and reduce the incidence of dairy cows (e. g. mastitis, hoof disease).
cow picaDisappearing (gnawing wood, licking hair, licking urine, gnawing plastic), the fur is smooth. Promote food digestion, improve feed utilization and save concentrate.
1.3 prevention and control measures
Strengthen the feeding and management of dairy cows in the late pregnancy, provide a comfortable environment and give appropriate exercise. Ensuring balanced feed nutrition, especiallyAttention to vitamins andMineralsSupplement. Strengthen the prevention and control of diseases such as brucella and pyogenic bacillus mastitis.
Surgical therapy: stripping of the placenta, with new geramine or potassium permanganate in the uterus to wash away the remaining placental fragments and putrefactive fluid, and then placed in the uterus antibiotic drugs or intramuscular injection of antibiotics to prevent uterine infection.
Drug therapy:
① Intramuscular injection of oxytocin, 50IU each time, repeated 1 times every 1h.
② 4 g of oxytetracycline was dissolved in 0.9% normal saline 500 mL and perfused in uterus.
③ pituitrin 100IU, intramuscular injection, promote uterine contraction discharge of fetal coat.
2.1 Overview
Acetonemia is a disease of systemic dysfunction caused by inadequate supply of carbohydrates and disturbances in the metabolism of volatile fatty acids. Most of them occur within 3 to 6 weeks after delivery, but at the latest within 2 months.
2.2 etiology
The essence of the disease lies in the lack of sugar in the blood and body. The main influencing factors are as follows: First, the energy intake during the peak period of milk production cannot meet the needs of lactation, which leads to the occurrence of this disease. Second, a large number of silage or feed in the lack of cobalt, iodine, phosphorus and other minerals can also increase its incidence. Third, excessive calving body condition and prenatal excess nutrition can cause fatty liver, and fatty liver can lead to liver metabolic disorders, glycogen synthesis disorders, blood ketone body content increased, resulting in the disease.
2.3 prevention and control
It is mainly to make the proportion of feed with reasonable concentrate and coarse, so that the cow nutrition is moderate, and to do a good job of nursing the cow during the perinatal period. In particular, we should strengthen the feeding and management of dairy cows before and after delivery, prevent excessive obesity before delivery, limit the amount of concentrate 2 weeks before delivery, increase the amount of hay, and feed full-price diet after delivery. When increasing concentrate, the amount of hay cannot be reduced. The test proved that adding propylene glycol to the diet of dairy cows, or feeding sodium propionate 2 to 4 weeks after delivery, has a better preventive effect.
With the following treatment plan, satisfactory results can usually be achieved: first, 500mL of 50% glucose solution is injected intravenously; Then inject a dose of glucocorticoid; Finally, oral administration of propylene glycol 150g, twice/d, for 3 ~ 4d.
3.1 Overview
Postpartum paralysis is a serious metabolic disorder, which is a common and frequently-occurring disease in dairy cows, usually acute hypocalcemia. The disease mostly occurs in 3 to 6 births of dairy cows, and most of them occur within 3 days after delivery. The disease is easy to relapse, and the incidence of high-yield cattle is high, which brings certain economic losses to the breeding industry.
3.2 etiology
The main reason for the decrease of blood calcium in the body is that a large number of colostrum secretion before and after childbirth causes calcium to enter the milk from the blood, while the calcium absorbed by the intestine and the calcium mobilized from the bones is insufficient, so that the blood calcium content is reduced. In addition, the decrease in the ability of the intestine to absorb calcium and the decrease in the rate of mobilizing calcium reserves from the bones are also important reasons for the sharp decline in blood calcium.
3.3 prevention and control
Feeding low calcium and high phosphorus diet one month before delivery can improve the ability to use calcium during delivery. After childbirth, 25% calcium gluconate should be injected intravenously in time to prevent calcium deficiency, and at the same time, stomach-strengthening drugs should be fed to promote gastrointestinal digestion and absorption of calcium. Don't rush to milking cows after calving. Usually, the first milking is carried out 2 hours after delivery. It can't be milked. Generally, the milking amount is 1 /5 of the normal milk amount, which gradually increases and reaches the normal milk amount on the fifth day.
Treatment can be intravenous injection of 10% calcium gluconate 500~1000mL, severe subcutaneous injection of 10% sodium caffeine 20mL. For shortness of breath, 5% sodium bicarbonate 500mL and 5mg dexamethasone can be added, and the effect of breast air supply to sick cattle is better at the same time of medication.
Share
Telephone:+86-0531-8712 3999 +86-151 6919 5199
Address of Marketing Department: Energy Saving Demonstration Building, Wolong Road, downtown Jinan City
Message feedback