The influence of the decrease of Resistance on the feeding points of Perinatal Dairy cows

The perinatal period of dairy cows refers to one month before and after delivery, including late pregnancy and early lactation. Therefore, the physiological aspects of dairy cows have undergone great changes, resistance decreased, a little careless, very easy to get sick, and even affect the milk yield of the whole lactation period. Therefore, it is very important to strengthen the feeding and management of perinatal dairy cows.

Perinatal cow

Adjust the feeding mode reasonably: keep the balance of fine and coarse feed and control the content of calcium salt.

The amount of ① concentrate can be fed according to the standard of dry milk period, 3-5kg per day, but the specific dosage should be determined according to the situation of the cow, and the maximum feeding amount should not exceed 1% of the cow's body weight. Excessive feeding of concentrate will not only increase feed costs, but also lead to dystocia, ketosis and other diseases. For cows with little change in breasts and lean body, concentrate can be fed appropriately, but it is necessary to prevent excessive haste of milk.

Within 15 days before ②, the amount of salt feeding decreased from 100g to 50g per day. After being transferred to the delivery room, the amount of salt should be appropriately reduced to promote the recovery of postpartum appetite of dairy cows.

③ fed low calcium diets to cows 15 days before parturition, reducing the content of calcium in the diet to 1 / 2 of the usual level, accelerating the transfer of calcium in the bones to blood and preventing postpartum paralysis.

Improve the management and protection measures of dairy cows:

① cows enter the perinatal period, if there are conditions, it is necessary to set up a delivery room, the delivery bed should be dry, ventilated and quiet.

② should appropriately increase prenatal exercise of dairy cows to prepare for delivery. Delivery is mainly natural delivery. If midwifery is needed, it must be strictly disinfected.

③ cows should be immediately fed with motherwater or warm brown sugar water after delivery, and they should be driven to stand up to promote the elimination of lochia.

Within 1-2 days after delivery of ④, corn flour, wheat bran and other digestible concentrate and high-quality hay were fed. If the placenta is retained, the uterus can be treated with systemic treatment of dairy cows to prevent complications. At the same time, observe at any time to reduce the incidence of metabolic diseases in the digestive tract of dairy cows, so as to produce more milk and get less sick, so as to prepare for 60 days postpartum mating.

Scientific control of milking quantity:

The number of postpartum milking has a direct impact on the health and lactation function of dairy cows, poor mastery is easy to induce postpartum metabolic disorders of cows. Therefore, it must be controlled scientifically. Generally speaking, on the first day after parturition, the milking amount is 1 pound 3 of the daily milk yield. From the second day after delivery, the milking amount of dairy cows was gradually increased. Normal milking will be achieved after the cow's lactation and digestive function are basically restored. In general, it can be recovered within 3-5 days after delivery. In this way, it can effectively prevent milk fever, promote milk production and improve milk quality.