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首页> 美国卫生研究院文献>The Journal of Poultry Science >Nutritive Value of Mulberry Leaf Meal and its Effect on the Performance of 35-70-Day-Old Geese
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Nutritive Value of Mulberry Leaf Meal and its Effect on the Performance of 35-70-Day-Old Geese

机译：桑树叶粉的营养价值及其对35-70天老鹅的表现的影响

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Availability of feed crops for animal production is decreasing, creating a need to identify alternative food sources. With their high protein content, mulberry leaves are a likely candidate for feed supplementation and have been trialed on pigs and chickens, but little is known about their effect as a feed supplement on geese. Here, we determine the nutritive value of mulberry leaf meal (MLM), measure the digestibility of energy and amino acid of MLM in male Sichuan white geese, and evaluate the performance of these geese fed an MLM-supplemented diet. The composition of MLM was as follows: gross energy 4.94 Mcal/kg, crude protein 18.81%, ether extract 11.65%, crude fiber 12.45%, calcium 2.46%, phosphorous 0.24% and amino acids 0.26–1.92% (all % on a dry matter basis). Using the emptying then force-feeding method on 24 geese aged 194 days, we measured the apparent metabolizable energy of MLM as 1.58 Mcal/kg (on a dry matter basis), and the true total tract digestibility of the amino acids in MLM as 50.54–79.98%. We then randomly allocated a further 210 geese aged 35 days to one of five dietary treatments (control diet alone or supplemented with 4%, 8%, 12% or 16% MLM). Each treatment contained six replicate pens of seven birds per pen, and birds were maintained on their treatment until 70 days of age. Geese fed diets containing MLM exhibited lower weight gains, elevated feed consumption and an increased feed to gain ratio ( <0.05) compared with geese fed the control diet. Moreover, geese fed diets supplemented with MLM all experienced diarrhea, reduced amounts of subcutaneous fat and lower percentages of skin and abdominal fat ( <0.05) compared with control geese. In conclusion, MLM should be used with caution as a feed supplement for geese.
机译：用于动物生产的饲料作物的可用性正在降低，因此需要识别替代食物来源。凭借其高蛋白质含量，桑叶是一种可能的饲料补充候选者，并已在猪和鸡上进行试验，但对其作为鹅的饲料补充效果很少。在这里，我们确定桑叶膳食的营养价值（MLM），测量MLM在男性四川白鹅的能量和氨基酸的消化率，评价这些鹅喂养MLM补充饮食的鹅肝的性能。 MLM的组成如下：总能量4.94 MCAL / kg，粗蛋白18.81％，乙醚提取物11.65％，粗纤维12.45％，钙2.46％，磷0.24％，氨基酸0.26-1.92％（均为干燥基础）。在194天的24岁的鹅中使用排空，我们将MLM的表观代谢能量降低为1.58mcal / kg（干物质的基础），以及MLM中氨基酸的真实总体沟通性为50.54 -79.98％。然后，我们随机分配了35天的另外210鹅至五个膳食处理中的一种（单独对照饮食或补充4％，8％，12％或16％MLM）。每种术含有六只鸟类的每种处理术，鸟类均在其治疗中保持，直至70天。与喂养对照饮食的鹅相比，饲喂含有MLM的饮食含有MLM的饮食和增加的饲料增加（<0.05）。此外，与对照鹅相比，鹅肝补充了MLM的饮食，腹泻，减少皮下脂肪和较低百分比的皮肤和腹部脂肪（<0.05）。总之，MLM应谨慎使用，作为鹅的饲料补充剂。

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