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The determination of fermentation characteristics of some Iranian feedstuffs using gas production technique

Published online by Cambridge University Press:  23 November 2017

Z Nemati*
Affiliation:
Tabriz University, Tabriz, Iran
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Extract

The gas production technique has been widely used for evaluation of nutritive value of feeds (Pell et al., 1998) and gas production profile has been shown to have good relationships with VFA produced in the rumen (Blummel and Ørskov, 1993; Brown et al., 2002), as well as neutral detergent fiber (NDF) (R2 = 0.98) (Herrero and Jessop, 1996) and dry matter (DM) disappearance (R2 = 0.95) (Prasad et al., 1994). Carbohydrate portion of each feed is divided into three digestible fractions: The A fraction, containing sugars, short oligosaccharides and organic acids; the B1 fraction, containing starch and pectin; and B2, the digestible fiber fraction (Doane et al., 1998). The objective of this study was to evaluate of nutritive value of some Iranian feedstuffs by using gas production technique.

Type
Poster presentations
Copyright
Copyright © The American Society of International Law 2016

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References

Blummel, M., Ørskov, E.R. 1993. Comparison of in vitro gas production and nylon bag degradability of roughages in predicting feed intake in cattle. Animal Feed Science and Technology. 40: 109119.CrossRefGoogle Scholar
Brown, V.E., Rymer, C., Agnew, R.E., Givens, D.I. 2002. Relationship between in vitro gas production profiles of forages and in vivo rumen fermentation patterns in beef steers fed those forages. Animal Feed Science and Technology. 98: 1324.CrossRefGoogle Scholar
Fedorake, P.M., Hrudey, S.E. 1983. A simple apparatus for measuring gas production by methanogenic cultures in serum bottles. Environ. Technol. Leu. 4: 425-432 CrossRefGoogle Scholar
Herrero, M., Jessop, N.S. 1996. Relationship between in vitro gas production and neutral detergent fibre disappearance in three tropical grasses. Animal Science. 62, 682 (Abstract).Google Scholar
Pell, A.N., Schofield, P. 1993. Computerised monitoring of gas production to measure forage digestion. Journal Dairy Science. 76: 10631073.CrossRefGoogle ScholarPubMed
Prasad, C.S., Wood, C.D., Sampath, K.T. 1994. Use of in vitro gas production to evaluate rumen fermentation of untreated and urea treated finger millet straw (Eleusine coracana) supplemented with different levels of concentrate. Journal Science Food Agric. 65: 457464.CrossRefGoogle Scholar
SAS Institute INC. 2000. The SAS system for windows. Release 8.01. Cary.Google Scholar