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首页> 外文期刊>Tropical Animal Health and Production >Effect of dietary monensin inclusion on performance, nutrient utilisation, rumen volatile fatty acid concentration and blood status of West African dwarf bucks fed with basal diets of forages
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Effect of dietary monensin inclusion on performance, nutrient utilisation, rumen volatile fatty acid concentration and blood status of West African dwarf bucks fed with basal diets of forages

机译：日粮莫能菌素含量对饲喂基础饲料的西非矮雄鹿生产性能，养分利用，瘤胃挥发性脂肪酸浓度和血液状况的影响

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摘要

This experiment investigated the effect of dietary monensin on performance, nutrient utilisation, rumen volatile fatty acid and blood status in West African dwarf (WAD) goats fed with basal diets of forages. Four concentrate supplements were formulated to include 0 (MO), 15 (M15), 30 (M30) and 45 (M45) mg monensin/kg dry matter. Twenty-four WAD bucks (7.3 +/- 1.20 kg initial body weight, aged 9-12 months) were randomly allotted to four experimental diets in a completely randomised design for 90 days, six animals per diet. Results indicated that animals fed M15, M30 and M45 diets had lower ( < 0.01) dry matter and water intake than those fed M0 diet. Crude protein and neutral detergent fibre intakes by the bucks followed similar trend. Animals on M15, M30 and M45 had better ( < 0.001) feed and protein efficiency ratio than those fed M0 diet. Rumen pH and total volatile fatty acid concentration were maintained ( > 0.05) while monensin decreased ( < 0.001) acetate/propionate ratio. Blood glucose increased ( < 0.001) from 59.1 mg/dl in animals on M0 diet to 67.8, 66.0 and 66.3 mg/dl in animals on M15, M30 and M45 diets. Overall, there were no variations among animals on M15, M30 and M45 diets. It is concluded that feeding monensin at 15 to 45 mg/kg DM of supplemental concentrate diets to West African dwarf bucks could be effective in improving feed and protein efficiency, manipulating the rumen for increased propionate production and increasing blood glucose levels.
机译：该实验研究了饲料莫能菌素对饲喂基础饲料的西非矮山羊（WAD）的生产性能，营养利用，瘤胃挥发性脂肪酸和血液状态的影响。配制了四种浓缩补充剂，包括0（MO），15（M15），30（M30）和45（M45）莫能菌素/ kg干物质。以完全随机的设计将24只WAD雄鹿（初始体重7.3 +/- 1.20千克，年龄9-12个月）随机分配给四种实验饮食，为期90天，每种饮食六只动物。结果表明，饲喂M15，M30和M45日粮的动物的干物质和水摄入量低于饲喂M0日粮的动物（<0.01）。雄鹿对粗蛋白质和中性洗涤剂纤维的摄入趋势相似。饲喂M15，M30和M45的动物比饲喂M0的动物具有更好的（<0.001）饲料和蛋白质效率比。瘤胃pH值和总挥发性脂肪酸浓度保持（> 0.05），而莫能菌素降低（<0.001）乙酸盐/丙酸盐比率。血糖从M0饮食的动物中的59.1 mg / dl增加（<0.001）到M15，M30和M45饮食的动物中的67.8、66.0和66.3 mg / dl。总体而言，M15，M30和M45日粮的动物之间没有差异。结论是，向西非矮人母鸡饲喂15至45 mg / kg DM补充精料日粮莫能菌素可有效提高饲料和蛋白质的效率，操纵瘤胃以增加丙酸酯的产生并增加血糖水平。

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