本文選題：放牧冷應(yīng)激 + 暖棚��； 參考：《草業(yè)學(xué)報(bào)》2017年06期

【摘要】：研究冬春季暖棚舍飼對(duì)母羊體重?fù)p失及產(chǎn)羔性能的影響。試驗(yàn)分別于2011、2012和2013年冬春季在內(nèi)蒙古錫林郭勒盟太仆寺旗進(jìn)行,在當(dāng)?shù)剡x用2戶臨近牧戶,每戶挑選120只母羊,隨機(jī)分為2組,分別為傳統(tǒng)棚+放牧組(TS,對(duì)照)、改造暖棚+舍飼組(WS)。參試母羊夏秋季白天自由放牧,晚上歸牧后圈在傳統(tǒng)棚內(nèi);到冬春季TS組飼養(yǎng)方式不變,WS組舍飼在簡(jiǎn)易改造暖棚。整個(gè)試驗(yàn)期間,2組母羊及其羔羊的補(bǔ)飼飼料組成及飼喂量相同。試驗(yàn)結(jié)果表明,WS組母羊體重較TS組高1.6kg(P=0.004),體重?fù)p失較之少22g/d(P=0.005);母羊體重?fù)p失在12-1月份最嚴(yán)重,但經(jīng)第一年(2011)飼養(yǎng)損失程度顯著緩解(P0.001),體重?fù)p失隨棚圈積溫升高而減少。TS組的年均產(chǎn)羔數(shù)、羔羊體重及其日增重均顯著低于WS組(P=0.020;P=0.0005;P=0.0001),初生重及日增重隨著飼養(yǎng)年份的延后而增加(P0.001);產(chǎn)羔率、羔羊存活率和雙羔率隨棚圈積溫的升高而增大。以上結(jié)果表明,冬春季暖棚舍飼可顯著減少母羊越冬體重?fù)p失,并提高產(chǎn)羔力,進(jìn)而提高家庭牧場(chǎng)收入,保護(hù)退化草場(chǎng)。更重要的是,冷季舍飼有助于改變牧民的傳統(tǒng)養(yǎng)殖觀念,從"生存觀"轉(zhuǎn)向"生產(chǎn)觀"。建議,西北牧區(qū)冷季綿羊圈舍適宜積溫應(yīng)高于-40℃·d或基本溫度高于2℃。
[Abstract]:The effects of warm shed feeding in winter and spring on the weight loss and lambing performance of ewe were studied. The experiment was conducted in the Taipousi Banner of Xilin Guolermeng in Inner Mongolia in the winter and spring of 2011 and 2013 respectively. Two nearby pastoral households were selected and 120 ewes were selected for each household, and were randomly divided into 2 groups. It was used as the traditional shed grazing group, the control group and the warm shed feeding group respectively. The ewes were grazing freely during the summer and autumn, and then closed in the traditional shed after returning to grazing at night, while the feeding mode of TS group in winter and spring was unchanged and the WS group was feeding in a simple remade warm shed. During the whole experiment, the feed composition and feed quantity of two groups of ewe and lambs were the same. The results showed that the weight of WS group was 1.6 kg / kg P0. 004 and the weight loss of WS group was 22 g / d P0. 005% less than that of TS group, and the weight loss of ewes was the most serious in December and January. However, after the first year (2011), the level of feeding loss was significantly alleviated, and the weight loss decreased with the increase of the accumulated temperature of greenhouse. The average annual litter size of the TS group was decreased. The body weight and daily gain of the lambs were significantly lower than those of the WS groups (P 0.020, P 0.0005, P 0.0001, P 0.001), and the litter yield, lambs survival rate and double lambing rate increased with the increase of the accumulated temperature of the shed, with the increase of the feeding year, the daily gain and the daily gain of the lambs were significantly lower than those of the WS groups, and the body weight of the lambs was significantly lower than that of the WS groups. The results showed that warm shed feeding in winter and spring could significantly reduce the weight loss and increase lambing capacity of ewe, and then increase the income of family pasture and protect the degraded pasture. More importantly, cold season feeding helps to change herdsmen's traditional concept of farming, from "outlook on survival" to "view of production". It is suggested that the optimum accumulated temperature of sheep sheds in the cold season in northwest pastoral area should be higher than -40 鈩，

本文編號(hào)：1863616