中文摘要：本研究旨在调查马鲁拉饼粕（MSC）作为一种肉鸡饲料中蛋白质替代来源的营养价值。研究表明MSC可以替代肉鸡日粮中的大豆粉（SBM），是CP、脂肪、Ca、P、氨基酸（赖氨酸除外）和OA的良好来源。但目前其使用受限于脂质过氧化和真菌毒素的存在。
外文摘要：This study was aimed at investigating the nutritive value of marula seed cake (MSC) as an alternative protein source for broilers. In a completely randomised design involving six replicate pens of five chickens assigned to each of five treatments, body weight gain (BWG), feed intake (FI), feed conversion efficiency (FCE) and carcass characteristics were measured in an experiment in which 150 28-day-old broilers were fed maize-based diets containing, respectively, 0, 5, 10, 15 and 20% MSC at finisher phase.The results showed MSC to be remarkably high in CP (470.0 g/kg DM) and EE (343.5 g/kg DM),with moderate CF (58.2 g/kg DM),ash (54.3 g/kg DM),Ca(1.1 g/kg DM) and P (11.0 g/kg DM). Whilst very poor in lysine, MSC was found to be rich in methionine, cyst(e)ine, arginine and glutamic acid; it also contains good levels of valine, glycine, threonine, isoleucine, leucine, histidine, phenylalanine, serine, proline and alanine. Also, it contained 85.24% oleic (OA), 9.65% palmitic and 5.11% stearic acids, with a high peroxide value and low levels of mycotoxins deoxynivalenol (DON) and T-2 toxin. BWG, FI and FCE of broiler chickens significantly decreased (P< 0.001) as the dietary level of MSC increased. Further, dietary MSC significantly decreased bird live weight at slaughter (P<0.001), plucked weight (P<0.001), dressed weight (P<0.001) and weights of the liver (P <0.001) and neck (P<0.05). The results therefore demonstrate MSC to be a good source of CP, fat, Ca, P, amino acids (except lysine) and OA that can replace soya bean meal (SBM) in broiler diets. However, its use is currently limited by lipid peroxidation and presence of mycotoxins.
 
外文关键词：Marula seed cake；Broilers；Chemical composition； Performance；Carcass characteristics；Mycotoxins
作者：Mthiyane,DMN；Mhlanga,BS
作者单位：Univ Swaziland
期刊名称：TROPICAL ANIMAL HEALTH AND PRODUCTION
期刊影响因子：0.87
出版年份：2017
出版刊次：4
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