Starch utilisation in chicken-meat production: the foremost influential factors

食品科学 淀粉 化学 生物 动物科学 耐旱性 环境管理体系 生物技术 农学 干物质 肉鸡
作者
Ha H. Truong,Sonia Yun Liu,Peter H. Selle
出处
期刊:Animal Production Science [CSIRO Publishing]
卷期号:56 (5): 797-814 被引量:27
标识
DOI:10.1071/an15056
摘要

Starch is the chief dietary energy source for chicken-meat production, the majority of which is derived from the grain basis of diets for broiler chickens. The utilisation of starch from maize is of a high order in terms of ileal starch digestibility coefficients but this is not necessarily the case with wheat or sorghum. This may stem from the fact that maize essentially lacks the soluble non-starch polysaccharides in wheat and ‘non-tannin’ phenolic compounds found in sorghum. Numerous factors may influence starch digestibility with emphasis placed on starch–protein interactions as starch granules are located in the prolamin protein matrixes of grain endosperm. This close proximity facilitates any physical and chemical interactions and in this connection particular attention has been paid to kafirin, the dominant protein fraction in sorghum. Nevertheless, despite their apparent importance, the precise nature of starch–protein interactions has not been well defined. Exogenous phytases are routinely included in broiler diets primarily to liberate phytate-bound phosphorus; however, phytate may impede starch digestion and may retard glucose absorption. Additional feed additives, including non-starch polysaccharide-degrading enzymes, other exogenous enzymes and reducing agents may have the capacity to influence starch utilisation. Nevertheless, ileal and total tract starch digestibility coefficients are static parameters and overlook the digestive dynamics of starch, which is inappropriate given the possibility that slowly digestible starch enhances energy utilisation and feed conversion efficiency. However, if the slowly digestible starch concept is valid, the underlying mechanisms have not been fully elucidated. Consideration is given to the suggestion that slowly digestible starch ameliorates the catabolism of amino acids to provide energy to the gut mucosa by increasing the provision of glucose to posterior small intestinal segments. There is the prospect that whole grain feeding provides slowly digestible starch in addition to generating heavier relative gizzard weights. The digestive dynamics of starch and protein are inter-related and the digestion of starch and absorption of glucose should not be considered in isolation from protein digestion and amino acid absorption in the quest to improve the performance of broiler chickens. The foremost factor influencing starch utilisation in chicken-meat production may be the interaction between starch and protein digestive dynamics.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
ZHAO完成签到,获得积分10
4秒前
星辰完成签到 ,获得积分10
5秒前
5秒前
ding应助科研通管家采纳,获得10
7秒前
Youdge应助科研通管家采纳,获得10
7秒前
上官若男应助科研通管家采纳,获得10
8秒前
8秒前
MchemG应助科研通管家采纳,获得10
8秒前
czh应助科研通管家采纳,获得10
8秒前
所所应助科研通管家采纳,获得10
8秒前
MchemG应助科研通管家采纳,获得10
8秒前
MchemG应助科研通管家采纳,获得10
8秒前
丘比特应助科研通管家采纳,获得10
8秒前
所所应助科研通管家采纳,获得10
8秒前
Lucas应助科研通管家采纳,获得10
8秒前
8秒前
8秒前
热心市民小红花应助哈哈采纳,获得50
9秒前
NexusExplorer应助Skuld采纳,获得10
9秒前
starry完成签到 ,获得积分10
10秒前
大个应助kaoyikaoli采纳,获得10
10秒前
BIT_lulu完成签到,获得积分10
11秒前
12秒前
Yueee发布了新的文献求助10
12秒前
Lucas应助张道恒采纳,获得10
13秒前
量子星尘发布了新的文献求助10
13秒前
WQ发布了新的文献求助10
14秒前
烟花应助momo采纳,获得10
14秒前
健康的青槐完成签到 ,获得积分10
14秒前
林白生完成签到,获得积分10
17秒前
Valiant发布了新的文献求助10
17秒前
18秒前
champion完成签到 ,获得积分10
19秒前
江川锦鲤完成签到,获得积分10
20秒前
aigj完成签到 ,获得积分10
21秒前
早起睡个回笼觉完成签到,获得积分10
22秒前
22秒前
24秒前
科研杰克完成签到,获得积分10
24秒前
秃顶双马尾完成签到,获得积分10
25秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988920
求助须知:如何正确求助?哪些是违规求助? 3531290
关于积分的说明 11253247
捐赠科研通 3269903
什么是DOI,文献DOI怎么找? 1804830
邀请新用户注册赠送积分活动 882027
科研通“疑难数据库(出版商)”最低求助积分说明 809052