Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non-forage fibre source

Journal of Animal Physiology and Animal Nutrition
Ch Milis, D Liamadis

Abstract

Two in vivo digestion trials were conducted to evaluate the effects of diet's crude protein (CP) level, N degradability, and non-forage fibre source (NFFS) on nutrient digestibility and energy value of sheep rations. In each trial, rams were fed four isocaloric and isofibrous rations, differing in main protein and/or NFFS source. At the first trial, mean CP/metabolizable energy (ME) ratio of the diets was 17 g/MJ ME and at the second trial, 13 g/MJ ME. At both trials, the first ration contained cotton seed cake (CSC) and wheat bran (WB), the second CSC and corn gluten feed (CGF), the third corn gluten meal (CGM) and WB and the fourth CGM and CGF. Data of both trials were analysed in common as 2 x 2 x 2 factorial experimental design. Low N degradability (CGM) had positive effect on CP, neutral detergent fibre (NDF) and acid detergent fibre (ADF) digestibility of the ration. Those results suggest that an increase in rumen undegradable protein (RUP) content does not negatively affect nutrient digestibility of sheep rations. Corn gluten feed significantly elevated crude fibre (CF) digestibility, in comparison with WB. Rations having high CP/ME ratio had higher digestibility of CP in comparison with those having low CP/ME ratio; the...Continue Reading

References

Jan 1, 1965·The British Journal of Nutrition·K L Blaxter, J L Clapperton
Aug 1, 1994·Journal of Dairy Science·S M Swain, L E Armentano
Jul 1, 1995·The Proceedings of the Nutrition Society·D S ParkerJ C Wilton
Jul 1, 1997·Journal of Dairy Science·L Armentano, M Pereira
Feb 13, 2001·Small Ruminant Research : the Journal of the International Goat Association·S G. HaddadM M. Muwalla
Jan 25, 2003·Journal of Animal Science·E L Miller, M Y Baig

❮ Previous
Next ❯

Citations

Nov 19, 2020·Journal of the Science of Food and Agriculture·Margalida JoyMireia Blanco

❮ Previous
Next ❯

Related Concepts

Related Feeds

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.