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首页> 外文期刊>Tropical Animal Health and Production >Use of three fodder trees in the feeding of goats in the subhumid tropics in Mexico
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Use of three fodder trees in the feeding of goats in the subhumid tropics in Mexico

机译：在墨西哥半湿热带地区，使用三棵饲料树饲养山羊

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Chemical composition, in vitro gas production with and without polyethyleneglycol (PEG-4000 MW), and in vitro digestibility of dry matter (IVDMD) and organic (IVOMD) foliage from Pithecellobium dulce, Gliricidia sepium and Haematoxylum brasiletto were determined. The preference test was run for 15 days: the first 10 days as adaption period and the 5 days served as evaluation period. It was conducted in ten developing female Creole goats of 6 months old, weighing 14 +/- 2.0 kg in order to determine goat preference for any of the three foliages. Productive performance of 35 male creole kids of 6 months old (14 +/- 3.0 kg) was also determined by ad libitum feeding of the foliage of the tree: the 30 and 15 % of each of the P. dulce (T1, T2), G. sepium (T3, T4), and H. brasiletto (T5, T6) foliages were added to the experiment diets, while T7 served as control diet that did not contain any foliage. The crude protein (CP), total phenols (TP), condensed tannins (CT), IVDMD, and IVOMD were different among the foliages. The PEG determined the biological activity of the TP and CT of H. brasiletto. Goats preferred to consume the foliage of P. dulce because of its higher content of CP and IVDMD and low content of TP and CT. In the productive response, dry matter intake (DMI) was higher in kids fed T1 diet and was stimulated by higher IVDMD and IVOMD, which resulted in the higher daily weight gain (DWG). The contribution with TP and CT of H. brasiletto to T5 and T6 and the rejection by the animals of G. sepium in T3 and T4 explain the negative effects on the DMI and the DWG. Findings of the study suggested higher kid performance for P. dulce foliage. Possible attributes may include its better CP, low TP and CT, and higher digestibility.
机译：测定了化学成分，有无聚乙二醇（PEG-4000 MW）时的体外产气量以及杜氏沼虾，Gliricidia sepium和Haematoxylum brasiletto的干物质（IVDMD）和有机（IVOMD）叶子的体外消化率。偏好测试进行了15天：前10天作为适应期，而5天作为评估期。该试验是在十只发育中的6个月大的雌性克里奥尔山羊中进行的，重14 +/- 2.0千克，以确定三种叶子中的任何一种对山羊的偏好。 35个6个月大的男性克里奥尔人孩子的生产性能（14 +/- 3.0千克）还通过随意采食树上的叶子来确定：每个假单胞菌的30％和15％（T1，T2） ，G。sepium（T3，T4）和brasiletto（T5，T6）叶子被添加到实验饮食中，而T7用作不含任何叶子的对照饮食。叶片之间的粗蛋白（CP），总酚（TP），浓缩单宁（CT），IVDMD和IVOMD不同。 PEG测定了巴西布鲁氏菌的TP和CT的生物活性。山羊更喜欢食用杜鹃花的叶子，因为它的CP和IVDMD含量较高，而TP和CT含量较低。在生产性反应中，接受T1饮食的孩子的干物质摄入量（DMI）较高，并受到较高的IVDMD和IVOMD的刺激，从而导致每日体重增加（DWG）较高。芥菜的TP和CT对T5和T6的贡献，以及G. sepium在T3和T4中对动物的排斥，解释了对DMI和DWG的负面影响。该研究的结果表明，杜氏假单胞菌的孩子表现更高。可能的属性可能包括其更好的CP，较低的TP和CT和较高的消化率。

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