-
About Qingfeng
-
-
-
Prevention and Control Measures of Main Diseases of Dairy Cows in Perinatal Period Lodge Lick Brick
Release time:
2019-08-09
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.
Cow perinatal period refers to the cow prenatal2Thoughtful postpartum2Weeks, I .e., before and after childbirth1Months, the perinatal period is short, but it is a critical period for dairy cows to produce and lactation, and it is also a period of rapid physiological changes. The resistance of dairy cows decreases and they are very prone to diseases. 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.
The placenta does not go down.
1.1Overview
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. 2Etiology
1.2.1physiological 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.
1.2.2pathological 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.
1.2.3NutritionFactors
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.
1.3prevention and control measures
Strengthen the feeding and management of dairy cows in the late pregnancy, provide a comfortable environment and give appropriate exercise. Ensure a balanced feed with particular attention to vitamin and mineral supplements. 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:①Intramuscular injection of oxytocin, every time50IU, separated1hRepeat1Times.②Oxytetracycline4 gSoluble in0.9%Saline500 mL, uterine perfusion.③pituitrin100IU, intramuscular injection to promote uterine contraction and discharge of the placenta.
Ketosis
2.1Overview
Acetonemia is a disease of systemic dysfunction caused by inadequate supply of carbohydrates and disturbances in the metabolism of volatile fatty acids. More postpartum3 ～6Within weeks, but at the latest2 Within a month.
2.2Etiology
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.
2.3prevention 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, to strengthen the pre-and post-natal feeding management of cows, prenatal to prevent excessive obesity, pre-delivery2 Week limit the amount of concentrate, increase the amount of hay, postpartum feeding full price diet, in the increase of concentrate can not reduce the amount of hay. The test proved that the addition of propylene glycol in the cow diet, or in the postpartum2 ～4 Weekly feeding sodium propionate has a better preventive effect.
Satisfactory results are usually achieved with the following treatment regimens: first intravenously50%Glucose solution500mL; followed by a single dose of corticosteroids; and finally oral propylene glycol150g,2 Times/d, used together3 ～4d.
postpartum paralysis
3.1Overview
Postpartum paralysis is a serious metabolic disorder, which is a common and frequently-occurring disease in dairy cows, usually acute hypocalcemia. This disease occurs more often in3 ～6 The birth of the cow, and mostly in the postpartum.3dWithin the disease. The disease is easy to relapse, and the incidence of high-yield cattle is high, which brings certain economic losses to the breeding industry.
3.2Etiology
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.
3.3prevention and control
Before the cow gives birth1 Feeding low calcium and high phosphorus feed for months can improve the ability to use calcium during childbirth. Intravenous injection after delivery25%Calcium gluconate to prevent calcium deficiency, while feeding stomach medicine to promote gastrointestinal digestion and absorption of calcium. Do not rush to milk a cow after calving, usually after giving birth2hFor the first time milking, can not be milked, generally milking the amount of milk for the normal amount of milk1 /5Gradually increase, the fifth day to reach the normal amount of milk.
Treatment can be intravenous10%calcium gluconate500 ～1000mL, severe subcutaneous injection10%AnNa coffee20mL. For shortness of breath, raise5%Sodium Bicarbonate500mLand5mgDexamethasone, at the same time on the disease cattle breast air supply effect is better.
Previous Page
Previous Page:
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