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Abstract
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Article Information:
Determination of Nutritional Value and Digestibility and Degradability of Twigs in Four Tree Species through Chemical and in situ (Nylon Bags) Techniques
H. Yosefifar, B. Rasouli, A.A. Ghotbi and S. Lotfi
Corresponding Author: behrouz rasouli
Submitted: February 12, 2012
Accepted: March 30, 2012
Published: July 10, 2012 |
Abstract:
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This study has been conducted in order to determine nutritional value and digestibility and
degradability of twigs in four tree species including Zelkova carpinifolia, Gleditchia caspica, Populus deltoids
and Quercus castanaefolia through chemical and in situ techniques using 3 fistulated sheep in National
Research Institute for Animal Science, IRAN. The experiment conducted based on Randomized Complete
Block Design and obtained data were analyzed by software SAS and Neway. Chemical compounds (crude
protein (CP), Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Ether Extract (EE), Ash, Crude
Fiber (CF), NFC(Non Fiber Carbohydrate), Nitrogen Free Extract (NFE) and organic material (OM)) and
degradation (dry matter and protein) were determined. Amount of crude protein for 4 species are as follow Z.
carpinifolia (11%), G. caspica (15.4%), P. deltoids (10.3%) and Q. castanaefolia (9.5%)), also amount of crude
fiber in these trees are respectively 32.7, 18.6, 13.9 and 22.9%. Survey conducted on species’ degradation and
on amounts of dry matter and protein which disappear after 0, 4, 8, 16, 24, 48, 72 and 96 hours. Results of
degradation in dry matter and protein showed that extent of degradation has been an uptrend over time of
incubation and it follows a similar trend at all times. The most degradation of dry matter (80.6%) and protein
(91.6%) are related to G. caspica and the least degradation of dry matter (36%) and protein (38.4%) are related
to Q. castanaefolia. Results showed that as a replacement or a complementary for alfalfa, the four considered
tree species can provide some parts of food requirements by livestock through a correct programming.
Key words: Chemical, in situ Digestibility, (nylon bags) nutritional value, tree, twigs, ,
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Cite this Reference:
H. Yosefifar, B. Rasouli, A.A. Ghotbi and S. Lotfi, . Determination of Nutritional Value and Digestibility and Degradability of Twigs in Four Tree Species through Chemical and in situ (Nylon Bags) Techniques. Current Research Journal of Biological Sciences, (4): 455-461.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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