Application and Outlook of Exogenous Enzymes in Ruminants

XIE Xiangxue; DU Hongfang; CHEN Shuqin; WANG Xingyu; WANG Min; CHEN Dongli; REN Liping

doi:10.3969/j.issn.1006-267x.2016.04.007

Chinese Journal of Animal Nutrition >

2016 , Vol. 28 >Issue 4: 1011 - 1019

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.04.007

REVIEW

Application and Outlook of Exogenous Enzymes in Ruminants

XIE Xiangxue ,
DU Hongfang ,
CHEN Shuqin ,
WANG Xingyu ,
WANG Min ,
CHEN Dongli ,
REN Liping

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1. Guangdong VTR Bio-Tech. Co., Ltd., Zhuhai 519060, China;
2. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China

Received date: 2015-10-29

Online published: 2016-04-11

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Abstract

Ruminants can convert forage that human can't use directly to high quality protein-meat and milk, which is important to agriculture and human society. However, the conversion efficiency is dependent on digestibility of plant cell walls. The digestibility of plant material is low at present. It is potential to improve plant fiber digestibility that supplementing ruminant diets with exogenous enzymes, and thus improve the efficiency of feed utilization. This review summarized the application status, modes of action, and development directions of exogenous enzymes. The effects of exogenous enzymes in ruminants had variability, which might be due to enzyme array, addition level, addition mode, substrate type and host productive level. Exogenous enzymes acted in different environments, such as before feeding, in rumen and post-rumen, however, the exactly mechanism needed more investigation. In general, exogenous enzymes that used to enhance the feed digestibility would be one of the most important ruminant additives in the future, though they had variability at present.

Key words： exogenous enzyme; ruminant; rumen; plant cell wall

Cite this article

XIE Xiangxue , DU Hongfang , CHEN Shuqin , WANG Xingyu , WANG Min , CHEN Dongli , REN Liping . Application and Outlook of Exogenous Enzymes in Ruminants[J]. Chinese Journal of Animal Nutrition, 2016 , 28(4) : 1011 -1019 . DOI: 10.3969/j.issn.1006-267x.2016.04.007

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