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首页> 外文期刊>Tropical Animal Health and Production >Effect of palm kernel cake as protein source in a concentrate diet on intake, digestibility and live weight gain of goats fed Napier grass
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Effect of palm kernel cake as protein source in a concentrate diet on intake, digestibility and live weight gain of goats fed Napier grass

机译：棕榈仁饼作为浓缩饲料蛋白质来源对饲喂纳皮草的山羊的摄取，消化率和活体增重的影响

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The effects of palm kernel cake (PKC) as a protein source in a concentrate diet (comprising 35 % crushed maize, 30 % rice bran, 32 % PKC, 2 % vitamin mineral premix and 1 % salt) were examined on intake, live weight (LW) gain and digestibility in female goats (average LW of 12.4 +/- 2.6 kg). Four goats were randomly allocated to each of the four treatment diets: (a) Napier grass (Pennisetum purpureum) offered ad libitum (T1), (b) T1 + concentrate at 0.5 % of LW (T2), (c) T1 + concentrate at 1.0 % of LW (T3) and (d) T1 + concentrate at 2.0 % of LW (T4). A 7-day digestibility trial and an 82-day growth experiment were conducted. No differences were observed among diets for intakes of roughage dry matter (DM), total DM, organic matter (OM) and neutral detergent fibre (NDF). The crude protein (CP) intake increased (P < 0.05) as the level of concentrate in the diets increased. Goats fed the T2, T3 and T4 diets gained 10.2, 34.1 and 52.5 g/head/day, respectively, while the control group (T1) lost weight (-12.7 g/head/day). The apparent digestibilities of DM, OM and CP were similar (P > 0.05) among treatments. The digestibility of dietary NDF decreased (P < 0.05) with increasing levels of concentrate, but there was no significant (P > 0.05) difference between T2 and T3 diets. Supplementing a basal diet of Napier grass with PKC-based concentrate improved CP intake and LW gain. The PKC-based concentrate diet can therefore be exploited for the use of local feed resources for goat production; however, further research is required to achieve the best growth response.
机译：检查了棕榈精饼（PKC）作为高蛋白饮食（包含35％的玉米粉碎物，30％的米糠，32％的PKC，2％的维生素矿物质预混料和1％的盐）中的蛋白质来源的摄入量，活重（LW）增产和消化率的雌性山羊（平均LW为12.4 +/- 2.6公斤）。将四种山羊随机分配到四种治疗饮食中的每一种：（a）随意提供的雀巢草（Pennisetum purpureum）（T1），（b）T1 +浓缩液的LW（T2）的0.5％，（c）T1 +浓缩液LW（T3）为1.0％的T3和（d）T1 +（L4）（T4）为LW的2.0％浓缩。进行了7天的消化率试验和82天的生长实验。日粮中粗饲料干物质（DM），总DM，有机物质（OM）和中性洗涤剂纤维（NDF）的摄入量没有差异。随着日粮中精矿含量的增加，粗蛋白（CP）的摄入量增加（P <0.05）。饲喂T2，T3和T4日粮的山羊分别增加了10.2、34.1和52.5 g /头/天，而对照组（T1）则减轻了体重（-12.7 g /头/天）。在各处理之间，DM，OM和CP的表观消化率相似（P> 0.05）。日粮NDF的消化率随精矿含量的增加而降低（P <0.05），但T2和T3日粮之间没有显着差异（P> 0.05）。以PKC为基础的浓缩物补充纳皮尔草的基础饮食可以改善CP摄入量和LW增重。因此，可以利用基于PKC的浓缩饲料来利用当地饲料资源生产山羊。但是，需要进一步的研究以获得最佳的生长响应。

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