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Effects of graded levels of tannin containing tropical leaves on in vitro rumen fermentation, total protozoa and methane production.

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Title Effects of graded levels of tannin containing tropical leaves on in vitro rumen fermentation, total protozoa and methane production.
Not Available
 
Creator Bhatta R
Saravanan M
Baruah L
Prasad CS
 
Subject methane
protozoa
rumen fermentation
tannin
tropical leaves
 
Description Not Available
AIMS:
This study was carried out to determine the effect of graded levels of tannin-containing tropical tree leaves, Autocarpus integrifolis, Azardirachta indica and Ficus bengalensis, on the in vitro rumen fermentation pattern, total protozoa and methane suppression in order to establish the optimum dose of these leaves for inclusion in the ruminant diets.

METHODS AND RESULTS:
The air-dried and ground samples of Au. integrifolis, Az. indica and Ficus bengalensis were subjected to in vitro incubation using 30 ml buffered rumen fluid at 0, 2.5, 5.0, 10.0, 15.0, 20.0, 25.0 and 30.0% (dry matter refers to moisture-free basis) of a total mixed ration (TMR: refers to mixture of roughage and concentrate containing cereals and oil cakes) devoid of tannin. The TMR for the experimental incubation was prepared by mixing 40 parts of ground Elusine coracana straw as roughage source with 60 parts of concentrate mixture. The leaves contained an average 130 g kg(-1) CP with 7ยท0 MJ of ME kg(-1) DM. The average neutral detergent fibre (NDF) content was 5.0%) reduced TVFA concentration. Protozoa (cells per mL) were similar at all levels of inclusion with Au. integrifolis, but reduced in case of F. bengalensis and Az. indica. As the level of tannin increased in the incubation medium, there was a linear reduction in methane concentration. Highest methane reduction (%) was recorded in incubations supplemented with Az. indica (61.5) followed by F. bengalensis (46.8) and Au. integrifolis (30.3).

CONCLUSIONS:
It was established from this study that tropical leaves of F. bengalensis, Au. integrifolis and Az. indica suppress methanogenesis.

SIGNIFICANCE AND IMPACT OF THE STUDY:
Ficus bengalensis, Au. integrifolis and Az. indica leaves are of interest in the enteric methane ameliorative strategies. Total mixed ration containing 10-15% ground F. bengalensis or Au. integrifolis or Az. indica leaves could be fed to ruminants to reduce enteric methanogenesis. However, in vivo trials need to be carried out to validate these in vitro results.
Not Available
 
Date 2018-11-18T08:17:02Z
2018-11-18T08:17:02Z
2014-01-01
 
Type Research Paper
 
Identifier Bhatta R, Saravanan M, Baruah L and Prasad CS. 2014. Effects of graded levels of tannin containing tropical leaves on in vitro rumen fermentation, total protozoa and methane production. Journal of Applied Microbiology, 118:557-564.
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http://krishi.icar.gov.in/jspui/handle/123456789/11824
 
Language English
 
Relation Not Available;
 
Publisher Not Available