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Role of exogenous fibrolytic enzymes in ruminant feeding

Indian Agricultural Research Journals

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Title Role of exogenous fibrolytic enzymes in ruminant feeding
 
Creator CHANDRASEKHARAIAH, M
D, PRASANNA KUMAR
SANTOSH, SUNIL SINGH
PALANIVEL, C
CHIGURUPATI, SRINU
PRASAD, C S
 
Subject Biotechnology, Exogenous enzyme, Nutrition, Ruminants
 
Description The complex crop residues and straws are main feed resource available for feeding livestock in developing countries like India. These straws mainly consist of ligno-cellulose complex, which is not very easily and fully digested. Several attempts were tried to address the issue but met with varying degree of success. One of the approaches which holds promise is the use of exogenous fibrolytic enzyme in animals that are mainly fed on crop residue based diets. The major enzymes involved in cellulose hydrolysis are endocellulase (endoglucanase, endoß–1, 4-glucanase, carboxymethyl cellulase or ß-1, 4-glucan glucanohydrolase; E.C. 3.2.1.4), exocellulase (exoglucanase, exo-ß-1, 4-glucanase, cellulose ß-1, 4-cellobiosidase; E.C. 3.2.1.91), and ß-glucosidase (cellobiase or glucohydrolase, E.C. 3.2.1.21). Many of these enzymes are being used worldwide in numerous industrial applications such as food industry in addition to animal feed industry. Use of the exogenous enzymes in cattle improved the digestibility of feeds, growth rate and milk production although results obtained were inconsistent. This review gives an insight into various exogenous fibrolytic enzymes involved in cell wall digestion, probable mode of action, and their level of inclusion as productivity enhancer in ruminant feeding.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2014-04-17
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Review Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/39826
 
Source The Indian Journal of Animal Sciences; Vol 84, No 4 (2014)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/39826/17920
 
Rights Copyright (c) 2014 The Indian Journal of Animal Sciences