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首页> 外文期刊>African Journal of Biotechnology >A novel pig feed formulation containing Aspergillus niger CSA35 pretreated-cassava peels and its effect on growth and selected biochemical parameters of pigs
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A novel pig feed formulation containing Aspergillus niger CSA35 pretreated-cassava peels and its effect on growth and selected biochemical parameters of pigs

机译：含黑曲霉CSA35预处理木薯皮的新型猪饲料配方及其对猪生长和某些生化参数的影响

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This study investigated the effects of Aspergillus niger CSA35 pretreated-cassava (Manihot esculenta Crantz) peel feed (CPFG) on the body weight gain and some selected biochemical parameters of pigs. Cassava peels treated with biomass of A. niger CSA35 for a period of three weeks to initiate enzymatic digestion of peels were dried, ground and used in varying proportions to formulate pig rations in combination with other feed ingredients. Twenty 85–95 days old pigs (5.85 ± 0.70 kg) were randomly divided into four experimental groups. Group 1 received 0% CPFG amidst other feed ingredients (control), while Groups 2, 3 and 4 received 40%, 60% and 100% CPFG respectively. At the end of the feeding trial (21 days), the animals were weighed and blood samples collected for biochemical analysis. Results showed that increasing the amount of the fungus-pretreated cassava peels in pig rations increased the protein, fat and carbohydrate contents of the experimental feeds. Conversely, the percentage fibre content was reduced. The weight gain of pigs fed the control diet was significantly (p<0.05) lower than those fed with 60% CPFG and 100% CPFG but did not differ from those fed 40% CPFG. Serum calcium and albumin levels were observed to be significantly lower (p<0.05) in control group than in treatment groups. The highest serum calcium level was, however, observed in 100% CPFG group. Activities of liver function enzymes and serum creatinine level of pigs fed the formulated diets did not significantly differ from those of control unlike their serum urea levels. It was concluded that pig feeds formulated with cassava peels pretreated with A. niger CSA35 enhanced feed’s nutritive value and metabolisable energy, boosted serum albumin and calcium levels in pigs, increased pigs body weight and are health-friendly since the feeds did not pose threat of liver damage in the pigs investigated.
机译：这项研究调查了黑曲霉CSA35预处理木薯（Manihot esculenta Crantz）果皮饲料（CPFG）对猪体重增加和某些生化参数的影响。将木薯皮用黑曲霉CSA35的生物质处理三周以启动皮酶消化，将其干燥，研磨并以不同比例用于与其他饲料原料配制成猪日粮。将20至85-95日龄的猪（5.85±0.70公斤）随机分为四个实验组。第一组在其他饲料成分中（对照组）接受0％的CPFG，而第2、3和4组分别接受40％，60％和100％的CPFG。在喂养试验结束时（21天），对动物称重并收集血样进行生化分析。结果表明，增加猪日粮中经真菌预处理的木薯皮的数量会增加实验饲料中蛋白质，脂肪和碳水化合物的含量。相反，纤维含量的百分比降低了。饲喂对照日粮的猪的增重显着（p <0.05）低于饲喂60％CPFG和100％CPFG的猪，但与饲喂40％CPFG的猪没有区别。对照组的血清钙和白蛋白水平显着低于治疗组（p <0.05）。但是，在100％CPFG组中观察到最高的血清钙水平。饲喂配制日粮的猪的肝功能酶活性和血清肌酐水平与对照组相比没有显着差异，这与其血清尿素水平不同。结论是，用黑曲霉CSA35预处理的木薯皮配制的猪饲料提高了饲料的营养价值和代谢能，提高了猪的血清白蛋白和钙水平，增加了猪的体重，而且对健康无害，因为饲料没有对猪的构成威胁。调查的猪肝损伤。

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