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首页> 外文期刊>Tropical Animal Health and Production >Feeding value of hays of tropical forage legumes in pigs: Vigna unguiculata, Psophocarpus scandens, Pueraria phaseoloides and Stylosanthes guianensis
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Feeding value of hays of tropical forage legumes in pigs: Vigna unguiculata, Psophocarpus scandens, Pueraria phaseoloides and Stylosanthes guianensis

机译：猪热带饲草豆类干草的饲喂价值：:豆（Vigna unguiculata），P草（Psophocarpus scandens），葛根（Pueraria phaseoloides）和圭花（Stylosanthes guianensis）

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摘要

The effects of four tropical forage legume hays (Vigna unguiculata, Psophocarpus scandens, Pueraria phaseoloides and Stylosanthes guianensis) on voluntary feed intake (VFI) and their nutritive value were studied in growing pigs using a corn-soybean meal-based diet containing varying proportions of forage legume hays (0, 10, 20 and 40 % or 0, 12.5 and 25 % for VFI and nutritive value determination, respectively). There was no difference in VFI between species (P > 0.20), but a linear response to forage inclusion level (P 0.05) was observed decreasing from 126 for 0 % to approximately 84 g/kg of body weight for the 40 % forage diets, except for V. unguiculata, where the response was quadratic (P = 0.01). All four forage species linearly decreased the total tract apparent digestibility (TTAD) from 0.76 to 0.61, 0.80 to 0.68, 0.54 to 0.40 and 0.58 to 0.31 except for S. guianensis (0.44) for DM, N, NDF and N retention, respectively. Differences in digestibility (P 0.05) between species were also observed. Due to their negative influence on the overall digestibility, the contribution of hays should not exceed 12.5 %, except for S. guianensis, in which N retention remained quite high (0.44) at the highest inclusion level (25 %). P. phaseoloides hay should be avoided in pigs as it combines the lowest VFI with the lowest nutrient digestibility.
机译：研究了四种热带饲草豆类干草（Vigna unguiculata，Psophocarpus scandens，Pueraria phaseoloides和Stylosanthes guianensis）对自愿饲料摄入量（VFI）的影响及其营养价值，使用了基于玉米-豆粕型日粮的猪，其中日粮的比例不同。饲用豆类干草（VFI和营养价值测定分别为0％，10％，20％和40％或0％，12.5％和25％）。物种之间的VFI没有差异（P> 0.20），但是观察到对饲草含量的线性响应（P <0.05）从40％饲粮的0％的126降低到40 g / kg体重的约84 g / kg的体重，除了V. unguiculata以外，其响应是二次的（P = 0.01）。除s。guianensis（0.44）分别对DM，N，NDF和N的保留量外，所有四种饲草物种均将总表观消化率（TTAD）从0.76线性降低至0.61，从0.80降低至0.68，从0.54降低至0.40和从0.58降低至0.31。还观察到了物种之间的消化率差异（P <0.05）。由于它们对总体消化率具有负面影响，除s。guianensis以外，干草的贡献不应超过12.5％，在最高夹杂物含量（25％）时，其固氮能力仍然很高（0.44）。应避免猪中的P. phaseoloides干草，因为它结合了最低的VFI和最低的养分消化率。

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