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R esearch
(Published online:
14-05-2015)
8.
Evaluation of various feedstuffs of
ruminants in terms of chemical composition and metabolisable
energy content - Dinesh Kumar, Chander Datt, L. K. Das
and S. S. Kundu
Veterinary World, 8(5): 605-609
doi:
10.14202/vetworld.2015.605-609
Dinesh
Kumar:
Department of Animal Nutrition, Centre of Advanced Faculty
Training in Animal Nutrition, Indian Veterinary Research
Institute,
Izatnagar, Uttar Pradesh, India; kr.dinesh7@gmail.com
Chander
Datt:
Division of Dairy Cattle Nutrition, National Dairy Research
Institute, Karnal, Haryana, India;
chandatt@gmail.com
L. K.
Das:
Veterinary Dispensary, Kalampur, Kalahandi, Odisha, India;
drlalatendu27@gmail.com
S. S.
Kundu:
Division of Dairy Cattle Nutrition, National Dairy Research
Institute, Karnal, Haryana, India;
sskundu.kln@mail.com
Received:
28-12-2014, Revised: 05-04-2015, Accepted: 11-04-2015, Published
online: 14-05-2015
Corresponding author:
Dinesh Kumar, e-mail: kr.dinesh7@gmail.com
Citation:
Kumar D, Datt C, Das
LK, Kundu SS (2015) Evaluation of various feedstuffs of ruminants
in terms of chemical composition and metabolisable energy content,
Veterinary World 8(5):605-609.
Abstract
Aim:
The aim was to determine the chemical composition and
metabolisable energy (ME) content of feedstuffs used in ruminant
animals using in vitro method.
Materials and Methods: A total of 18 feedstuffs used for
ruminant feeding including cultivated non-leguminous fodders like
maize, sorghum, pearl millet, and oat; leguminous fodders like
cowpea and berseem; agro-industrial by-products such as wheat
bran, deoiled rice bran, rice polish, wheat straw, and
concentrates such as mustard oil cake, groundnut cake, soybean
meal, cotton seed cake, grains like maize, oat, wheat, and barley
were taken for this study. Chemical compositions and cell wall
constituents of test feeds were determined in triplicate. The
crude protein (CP) content was calculated as nitrogen (N) × 6.25.
True dry matter digestibility (TDMD), true organic matter
digestibility (TOMD), ME, and partitioning factor (PF) values were
determined by in vitro gas production technique (IVGPT).
Results: The CP content of non-leguminous
fodders varied from 7.29% (sorghum) to 9.51% (maize), but
leguminous fodders had less variation in CP. Oilseed cakes/meals
had high CP and ether extract (EE) content than other feedstuffs
except rice polish, which had 12.80% EE. Wheat straw contained
highest fiber fractions than the other ingredients. ME content was
highest in grains (wheat-12.02 MJ/kg) and lowest in wheat straw
(4.65 MJ/kg) and other roughages. TDMD of grains and oilseed
cakes/meals were higher than the fodders and agro-industrial
by-products. The same trend was observed for TOMD.
Conclusions: It was concluded that the energy feeds showed a
great variation in chemical composition and ME content. The
results of this study demonstrated that the kinetics of gas
production of energy feed sources differed among themselves.
Evaluation of various feedstuffs is helpful in balanced ration
formulation for field animals and under farm conditions for better
utilization of these commonly available feed resources.
Keywords: chemical compositions,
feedstuffs, in vitro method, metabolisable energy,
ruminants.
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