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首页> 外文期刊>Tropical Science >Influence of leucaena supplementation on productivity and grazing activity of goats on Digitaria setivalva pasture
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Influence of leucaena supplementation on productivity and grazing activity of goats on Digitaria setivalva pasture

机译：白花蛇舌草放牧对白山羊的生产力和放牧活性的影响

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摘要

The effect of overnight supplementation with leucaena leaves on productivity and grazing activity of goats given access to a D. setivalva pasture for 8 h during the day was studied. The study was conducted from June to September 1994. Ten non-pregnant, non-lactating goats (local Kambing Kacang, 4-6 months old, 9.3 kg) were divided into 2 groups. Grazing activity was measured 4 times a week by 2 observers, before and after noon on alternate days. Pasture samples were taken monthly, ten 0.5 X 1 m quadrates. Maximum grazing activity occurred between 09.00 and 11.00 h for control and supplemented groups. The latter showed lower grazing activity only during the first hour of being allowed out of the pens. A general decline in activity was observed after 3-4 h of grazing. Goats voluntarily returned to their shed for about 1 h to rest and ruminate, after which they resumed grazing. Daily liveweight gain of the supplemented group (72.4 g/head) was significantly greater than that of the control (31.4 g/head). Analysis of grab samples of pasture indicated that goats selected a diet that was of higher quality than the overall sward. Leucaena leaves were not only a good source of protein, but also corrected the deficient Ca:P ratio of the grass diet.
机译：研究了在白昼间夜补充叶白蜡叶对山羊在一天中进入定点草牧场8小时的生产力和放牧活性的影响。该研究于1994年6月至9月进行。将十只不怀孕，不哺乳的山羊（当地的Kambing Kacang，4-6个月大，9.3公斤）分为两组。隔天的中午前后，由2位观察员每周测量4次放牧活动。每月取样10个0.5 X 1 m正方形的牧场样品。对照组和补充组的最大放牧活动发生在09.00和11.00 h之间。后者仅在被允许离开围栏的第一小时内显示较低的放牧活动。放牧3-4小时后，观察到活动总体下降。山羊自愿回到棚子里休息约1小时，然后反刍，此后恢复放牧。补充组的每日活体重增加（72.4 g /头）显着大于对照组（31.4 g /头）。牧场抓取样品的分析表明，山羊选择的饮食质量要高于整体草皮。银合欢叶不仅是蛋白质的良好来源，而且还纠正了草食中缺乏的Ca：P比。

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