Applied Effect Of CNCPS Software Model On Housing Feed Dairy In The North Ranch

In this experiment, total mixed ration which the Ranch currently using is analysed and evaluated by software model of the United States CNCPS, to estimate nutrient requirements and forecast requirements and supply of animal diets and production performance by computer models for dairy lactating cows. Evaluation of dietary nutrient balance and optimize dairy cow diets to improve animal performance, feed nutrient utilization to improve and enhance the production level of lactating cows and ranch. Total trials included four parts as shown follow.In modern animal husbandry Saibei ranch, in accordance with CNCPS on the division of carbohydrate and protein components,measured total mixed ration and feed nutritional components.CNCPS software model take into many factors about animal nutrition, achieved very good feeding effect.Thirty cows with same age, body weight, fetus times, milk yields and date of calving were selected and divided into to groups, and each group fifteen cows, the test group fed with optimal diet, control group was fed the previous diet. Record the milk yields, milk-fat , milk-protein and dry matter. The results showed that, CNCPS optimize diet in the feed effective use and improve the production performance had good effect.lactating prophase, mid-lactation, late lactation average milk yield in lactating cows were increased 9.87%, 8.09% and 14.92%; lactating prophase, mid-lactation lactating cows milk protein were increased by 0.02% and 0.04%, milk protein in late lactation lactating cows rate has dropped 0.05%; lactating prophase lactating cows milk fat percentage did not change, mid-lactation, late lactation cows milk fat percentage were increase of 0.21% and 0.20%; lactating prophase, mid-lactation cows in the dry matter were increased by 0.22% and 0.08%,late lactation dairy cows milk dry matter content decreased by 0.26%.Select the age, parity, body weight and pre-production through production of a similar perinatal lactating cows 50, divided into experimental and control groups each of 25, the test group fed with optimal diet, control group was fed the original diet. Feeding dairy cows minerals and vitamins, can effectively reduce the incidence of metabolic diseases of dairy cow nutrition, especially in the early perinatal feef sufficient trace elements and vitamins, all kinds of nutrition metabolic diseases in the postpartum period were significantly reduced.