Comparative ileal digestibility of amino acids in 00-rapeseed meal and rapeseed meal fed to growing male broilers

文献类型： 外文期刊

第一作者： Ullah, Zafar

作者： Ullah, Zafar;Sarwar, Muhammad;Rehman, Zaib Ur;Yin, Yulong;Stein, Hans H.;Ullah, Zafar;Hayat, Zafar;Ahmed, Gulraiz;Nisa, Mahr Un;Akhtar, Muhammad;Rehman, Zaib Ur

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关键词： 00-rapeseed meal;rapeseed meal;ileal digestibility;broiler

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

ISSN：

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收录情况： SCI

摘要： Rapeseed meal (RSM) is a commonly used protein source in poultry diet but its usage is limited due to antinutritional factors, the glucosinolates (GLS) and erucic acid. The 00-rapeseed meal (00-RSM) is the developed variety of rapeseed with reduced GLS and erucic acid content through genetic selection. The present study was conducted with the objective of comparing the standardized ileal digestibility (SID) of amino acids (AA) in 00-RSM and RSM when fed to growing broilers. Three samples of each ingredient were collected from different sources. Two hundred and fifty two day-old male broilers (Hubbard x Hubbard) were fed a corn-soybean meal based starter diet in crumble form from day 1 to 13. On day 14, all chicks were individually weighed and randomly distributed to 42 replicate pens (6 birds in each pen). Six test diets (2 ingredient x 3 samples) with approximately 20% crude protein were made in mash form in such a way that the 6 test ingredients served as the sole source of AA in one diet. The endogenous AAs (EAA) were determined by feeding a nitrogen-free diet to six replicate pens. Each test diet was fed to six replicates of broiler chicks from 14 to 21 days of age. Results indicated that the SID of all AA differed (P < 0.001) among 00-RSM samples. Among RSM samples, the SID of AA varied for arginine, methionine (P < 0.01), histidine, leucine, lysine, aspartic acid, and phenylalanine (P < 0.05). A greater (P < 0.05) SID of all AA except arginine, histidine, phenylalanine, cysteine, and glutamic acid was observed in 00-RSM compared with RSM. In conclusion, 00-RSM had greater SID of AA compared with RSM and it is nutritionally superior to RSM to be used in broiler diets.

分类号： S8

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