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首页> 外文期刊>Livestock Science >Effect of feeding forest foliages, rice straw and concentrate-based total mixed ration on nutrient utilization and growth in mithun (Bos frontalis)
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Effect of feeding forest foliages, rice straw and concentrate-based total mixed ration on nutrient utilization and growth in mithun (Bos frontalis)

机译：饲喂森林树叶，稻草和基于精矿的总混合日粮对mithun（Bos frontalis）养分利用和生长的影响

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The study aimed to evaluate the effect of feeding Borrena hirticulata (BH), Ficus hirta (FH), rice straw (RS) and concentrate-based total mixed ration (TMR) on nutrient utilization, rumen fermentation and growth in mithun. Growing male mithun calves were randomly allotted to 2 feeding groups (6 in each), TMR and TMR. The TMRs consisted of RS 300 g kgp#, concentrate 400 g kgp# and BH 300 g kgp# (TMR) or FH 300 g kgp# (TMR) on a dry matter (DM) basis. Both TMRs were fed ad libitum to the animals for 121 d and a digestibility study was conducted during the last 7 d of the experiment. To assess rumen fermentation, rumen fluid was collected at 2 h interval for 24 h. Apparent digestibility of DM, crude protein (CP) and crude fibre (CF) did not differ significantly between the TMRs. Nevertheless, apparent digestibility of ether extract was found to be significantly (P <0.01) greater in TMR (0.59) compared to TMR (0.54). Body weight gain (BWG; g dp#), DM intake (kg dp#), CP intake (g dp#) and feed efficiency (kg feed kgp# gain) were found to be significantly (P <0.05) greater in TMR (548, 5.14, 713 and 9.28) compared to TMR (496, 4.91, 703 and 10.03). An insignificant positive association (r =0.35) between DM intake and BWG, but a significant (P <0.01) positive association (r =0.74) between CP intake and BWG were evident. Rumen pH (5.71 to 7.18) and ammonia-nitrogen (8.0 to 25.0 mg/dl) did not differ significantly between the TMRs, but differed significantly (P <0.01) at different h post-feeding. In contrast, rumen total volatile fatty acid (42 to 105 mM) and total nitrogen (40.4 to 90.3 mg/dl) differed significantly (P <0.05) between the TMRs and at different h post-feeding. The study revealed that BH, FH, RS and concentrate-based TMRs may be fed to mithun for satisfactory growth.
机译：该研究旨在评估饲喂多氏疏螺旋体（BH），无花果榕（FH），稻草（RS）和基于浓缩物的总混合日粮（TMR）对养分的营养利用，瘤胃发酵和生长的影响。将生长中的雄性米图恩犊牛随机分配给2个饲喂组（每组6个），分别为TMR和TMR。 TMR由干物质（DM）的RS 300 g kgp＃，精矿400 g kgp＃和BH 300 g kgp＃（TMR）或FH 300 g kgp＃（TMR）组成。将两个TMR随意喂给动物121天，并在实验的最后7天进行了消化率研究。为了评估瘤胃发酵，每隔2小时收集瘤胃液24小时。在TMR之间，DM，粗蛋白（CP）和粗纤维（CF）的表观消化率没有显着差异。然而，与TMR（0.54）相比，TMR（0.59）中的醚提取物的表观消化率明显更高（P <0.01）。在TMR中，体重增加（BWG; g dp＃），DM摄入量（kg dp＃），CP摄入量（g dp＃）和饲料效率（kg饲料kgp＃增高）显着（P <0.05） 548、5.14、713和9.28）与TMR（496、4.91、703和10.03）相比。 DM摄入量与BWG之间无显着正相关（r = 0.35），而CP摄入量与BWG之间有显着（P <0.01）显着正相关（r = 0.74）。瘤胃pH值（5.71至7.18）和氨氮（8.0至25.0 mg / dl）在TMR之间没有显着差异，但在喂食后的不同h差异显着（P <0.01）。相比之下，TMR之间和饲喂后不同小时的瘤胃总挥发性脂肪酸（42至105 mM）和总氮（40.4至90.3 mg / dl）有显着差异（P <0.05）。该研究表明，BH，FH，RS和基于浓缩物的TMR可以饲喂到米图恩以取得令人满意的生长。

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