本文選題：蛋白水平 + 西農薩能羊奶山羊　； 參考：《家畜生態(tài)學報》2016年12期

【摘要】：為了篩選西農薩能奶山羊羔羊哺乳期全價顆粒料配方,本試驗采用2×3兩因子設計,選用出生日期相近(5d之內)、體重相近(3.66±0.69kg)的健康西農薩能奶山羊初生羔羊53只(公羊26只、母羊27只),按性別和蛋白質水平隨機分為6組(A、B、C為三組母羊;D、E、F為三組公羊),試驗期為120d,并分為1~60日齡和61~120日齡兩個階段,兩階段顆粒料苜蓿草粉含量分別為10%和20%,蛋白質水平分別為18%、21%、24%和15%、18%、21%,哺乳期自由采食干草,試驗期間采集奶樣和飼料樣,記錄羔羊采食量和生長發(fā)育數據。結果表明,試驗期間公羔日增重顯著高于母羔(P0.05);1~60日齡,A、D組羊羔具有較大的日增重,飼料報酬高,且D組日增重顯著高于E、F組(P0.05);61~120日齡,D組具有最大日增重,隨著蛋白水平的升高,公羔日增重呈現出降低的趨勢,C組母羔顯著大于A、B兩組(P0.05),公羔間日增重差異不顯著(P0.05);飼喂不同蛋白水平顆粒料對哺乳期羔羊腹瀉率和血液生化指標無顯著影響。試驗表明,1~60日齡,蛋白質水平為18%的顆粒料組羔羊生長發(fā)育最快,飼料報酬高;61~120日齡,蛋白質水平為21%的顆粒料組母羔增重快。
[Abstract]:In order to select the formula of the whole grain feed of Xinong Saanen goat during lactation, a 2 脳 3 factor design was used in this experiment. 53 (26 male) healthy Sinon Sanen goats were born in 5 days with similar birth date and 3. 66 鹵0. 69 kg in body weight. According to their sex and protein level, 27 ewes were randomly divided into 6 groups, including six groups with three groups of Agna Bor C and three groups of male sheep, the experimental period was 120 days, and they were divided into two stages: 1D 60 d and 61g 120 d. The contents of alfalfa meal in two stages were 10% and 20%, and the protein levels were 18% and 21%, respectively. During the lactation period, the hay was fed freely. Milk samples and feed samples were collected during the experiment, and the feed intake and growth data of lambs were recorded. The results showed that the daily gain of male lambs was significantly higher than that of female lambs at 60 days old, and the daily gain of lambs in group D was significantly higher than that in group D, which was significantly higher than that in group D (group D), and the maximum daily gain of lambs in group D was increased with the increase of protein level. The average daily gain of male lambs decreased significantly in group C than that in group A and B, but there was no significant difference in daily gain of lambs between the two groups (P 0.05), and there was no significant effect on diarrhea rate and blood biochemical indexes of lambs fed with different protein levels. The results showed that the lambs with protein level of 18% had the fastest growth, and the lambs with high feed rate of 61 ~ 120 days of age and 21% protein level had a fast weight gain.
【作者單位】： 西北農林科技大學動物科技學院;富平縣畜牧技術推廣中心;青藏高原動物遺傳資源保護與利用四川省重點實驗室西南民族大學;陜西省涇陽縣動物衛(wèi)生監(jiān)督所;
【基金】：國家自然科學基金(31672398) 陜西省科技統(tǒng)籌創(chuàng)新工程計劃項目(2016KTZDNY02-05) 西北農林科技大學基本科研業(yè)務費專項資金(XNY2013-24)
【分類號】：S827.5

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