Determination of standardized ileal digestibility of crude protein and amino acids and digestible indispensable amino acid score of faba beans, lentils, and yellow peas fed to growing pigs

IF 1.2 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
C. Cargo-Froom, F. Tansil, D. Columbus, C. Marinangeli, E. Kiarie, A. Shoveller
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Abstract

Abstract The objective of this study was to determine the standardized ileal digestibility (SID) of protein and amino acids (AA) and calculate the digestible indispensable AA score (DIAAS) of three varieties of Canadian grown pulses (faba bean, lentil, and yellow pea). Three steam-pelleted (80 °C) diets (faba/lentil/pea; 40% inclusion) and a nitrogen-free diet were fed to eight cannulated growing pigs in a 4 × 4 replicated Latin square design. The SID values were used to calculate DIAAS. There were no differences in SID of protein and AA when all diets were compared (P > 0.05). The SID of methionine was 95% for faba beans, 96% for lentils, and 96% for peas. The SID of lysine was 93% for faba beans, 92% for lentils, and 90% for peas. Tryptophan had the lowest SID across all indispensable AA of all pulses (59% faba, 61% lentil, and 41% pea). All other indispensable AA SID were above 80%. Tryptophan was the limiting indispensable AA for all pulses as determined by DIAAS, with scores of 30 (faba), 57.83 (lentil), and 27.27 (pea). These values will aid in optimal inclusion of steam-pelleted pulses in diets for swine and provide an insight on the protein quality of pulses for humans.
饲养猪的蚕豆、扁豆和黄豌豆的粗蛋白质和氨基酸的标准化回肠消化率和可消化的必需氨基酸评分的测定
摘要本研究旨在测定3种加拿大豆类(蚕豆、扁豆和黄豌豆)蛋白质和氨基酸(AA)的标准化回肠消化率(SID),并计算可消化必需AA评分(DIAAS)。三种蒸汽颗粒化(80℃)饲粮(蚕豆/扁豆/豌豆;采用4 × 4重复拉丁方设计,饲喂8头空心生长猪,分别饲喂无氮日粮(含40%)和无氮日粮。SID值用于计算DIAAS。各饲料蛋白质和氨基酸的SID比较差异无统计学意义(P < 0.05)。蚕豆、小扁豆和豌豆的蛋氨酸SID分别为95%、96%和96%。蚕豆赖氨酸的SID为93%,扁豆为92%,豌豆为90%。色氨酸在所有豆类中必需氨基酸的SID最低(蚕豆59%,扁豆61%,豌豆41%)。其他必需AA的SID均在80%以上。色氨酸是所有豆类的限制性必需氨基酸,分别为蚕豆(30)、扁豆(57.83)和豌豆(27.27)。这些值将有助于在猪的日粮中最佳地加入蒸汽颗粒豆类,并为人类提供豆类蛋白质质量的见解。
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来源期刊
Canadian Journal of Animal Science
Canadian Journal of Animal Science 农林科学-奶制品与动物科学
CiteScore
2.30
自引率
0.00%
发文量
51
审稿时长
6 months
期刊介绍: Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.
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