Effect of different roughages on the lactation ewes productive per-formances
In order to study the different combination of roughage on lactation ewe lamb production performance and economic benefit. The paper select 25 lambs and 25 ewes which were the same weight and body condition. They are divided into 5 groups randomly. According to the different kinds of the roughage, I design five diets. Experimental period was 41 days. Raise period in advance was 15 days. The results showed that comparing with the group which included corn stalk (44.97%) and concentrate feed (55.03%), the ewe weight, lamb weight and lactation yield of the group which included corn stalk (51.72%), corn silage (5.17%), alfalfa hay (5.17%) and concentrate feed (37.94%) were increased by 1.94, 1.81 and 0.13 kg, the feed gain ratio is 20.65??1, it saved the concentrate feed by 18.04 kg and the additional revenue was 145.62 yuan, respectively. The ewe weight, lamb weight, lactation yield of the group which included corn stalk (46.51%), alfalfa hay (10.23%) and concentrate feed (43.26%) were increased by 1.14, 1.29 and 0.091 kg, the feed gain ratio is 27.50:1, it saved the concentrate feed by 12.30 kg and the additional revenue was 100.72 yuan, respectively. The ewe weight, lamb weight, lactation yield of the group which included Chinese wildrye (58.87%), alfalfa hay (8.16%) and concentrate feed (32.97%) were increased by 0.86, 1.11 and 0.084 kg, the feed gain ratio is 29.38:1, it saved the concentrate feed by 22.96 kg and the additional revenue was 98.04 yuan, respectively. The ewe weight, lamb weight, lactation yield of the group which included Chinese wildrye (57.69%) and concentrate feed (42.31%) were increased by 0.42, 0.78 and 0.063 kg, the feed gain ratio is 37.27??1, it saved the concentrate feed by 13.53 kg and the additional revenue was 57.17 yuan, respectively.
NETL
NSTL
万方数据
维普
