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Cottonseed for protein and energy supplementation of high-roughage diets for beef cattle

Published online by Cambridge University Press:  02 September 2010

A. Brosh ,
Z. Holzer  and
D. Levy
A. Brosh
Affiliation:
Agricultural Research Organization, Newe Ya‘ar Regional Experiment Station, Haifa Post, Israel
Z. Holzer
Affiliation:
Agricultural Research Organization, Newe Ya‘ar Regional Experiment Station, Haifa Post, Israel
D. Levy
Affiliation:
Agricultural Research Organization, Newe Ya‘ar Regional Experiment Station, Haifa Post, Israel
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Abstract

The use of cottonseed (CS) as an energy and protein supplement to high wheat-straw diets was studied in a digestion and nitrogen balance trial, and as a component in fattening diets in a feeding trial. The proportions of CS studied were 0, 60, 120, 180 and 240 g/kg diet dry matter (DM). DM intake per kg M0·75 was 33, 31, 40, 31 and 29 g, respectively. The digestibility coefficient of organic matter was 415, 463, 417, 441, 350 g/kg DM and of neutral-detergent fibre was 350, 436, 411, 309, 334 g/kg DM. Nitrogen balance was –2·52, 1·1, 5·38, 5·63, 7·60 g/day respectively, for the same order of treatments. The effect of high proportions of CS in the diet in restricting DM intake and reducing its digestibility was evident. The results of the feeding trial were in agreement with those of the digestion trial and indicate the proportion of 120 g CS per kg DM as optimal and maximal.

Type
Papers
Information
Animal Production , Volume 48 , Issue 3 , June 1989 , pp. 513 - 518
Copyright
Copyright © British Society of Animal Science 1989

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