Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-04T19:51:49.017Z Has data issue: false hasContentIssue false

A note on the performance of Assaf male lambs reared intensively on an all-concentrate diet with herring meal or toasted soya bean meal as the main protein source

Published online by Cambridge University Press:  02 September 2010

Y. Folman
Affiliation:
Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
E. Eyal
Affiliation:
Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Get access

Abstract

Thirty-five Assaf intact male lambs were divided into three groups and offered an all-concentrate pelleted diet based on barley and maize and supplemented with either toasted soya bean meal, herring meal or toasted soya bean meal plus methionine to contain 20% crude protein. The live-weight gains to a slaughter weight of 57 kg were 425, 440 and 394 g/day, and the feed conversion ratios were 3·12, 3·07 and 3·38 kg dry matter/kg gain, respectively. It is concluded that, with toasted soya bean meal as the protein supplement, it is possible to obtain high growth rates that do not diifer significantly from those obtained with herring meal.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1978

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Davies, P. J. 1966. A note on energy intake and nitrogen balance of fattening lambs given all-concentrate diets. Anim. Prod. 8: 341344.Google Scholar
Folman, Y., Volcani, R. and Eyal, E. 1966. Mother-offspring relationships in Awassi sheep. I. The effect of different suckling regimes and time of weaning on the lactation curve and milk yield in dairy flocks. J. agric. Sci., Camb. 67: 359368.CrossRefGoogle Scholar
Fraser, C. and Ørskov, E. R. 1974. Cereal processing and food utilization by sheep. 1. The effect of processing on utilization of barley by early-weaned lambs. Anim. Prod. 18: 7583.Google Scholar
Hume, I. D. 1974. The proportion of dietary protein escaping degradation in the rumen of sheep fed on various protein concentrates. Aust. J. agric. Res. 25: 155165.CrossRefGoogle Scholar
Ørskov, E. R., Davies, P. J., Dickson, I. A., Humphries, A. B., Rutter, W. and Treacher, T. T. 1972. Protein utilization and performance of early-weaned lambs. Anim. Prod. 15: 183187.Google Scholar
Ørskov, E. R. and Fraser, C. 1969. The effect on nitrogen retention in lambs of feeding protein supplements direct to the abomasum. Comparison of liquid and dry feeding and of various sources of protein. J. agric. Sci., Camb. 73: 469475.CrossRefGoogle Scholar
Ørskov, E. R., Fraser, C. and Corse, E. L. 1970. The effect on protein utilization of feeding different protein supplements via the rumen or via the abomasum in young growing sheep. Br. J. Nutr. 24: 803809.CrossRefGoogle ScholarPubMed
Ørskov, E. R., Fraser, C., Gill, J. C. and Corse, E. L. 1971. The effect in an intensive production system of type of cereal and time of weaning on the performance of lambs. Anim. Prod. 13:485492.Google Scholar
Ørskov, E. R., McDonald, I., Fraser, C. and Corse, E. L. 1971. The nutrition of the early weaned lamb. III. The effect of ad libitum intake of diets varying in protein concentration on performance and on body composition at different live weights. J. agric. Sci., Camb. 77: 351361.CrossRefGoogle Scholar
Tagari, H., Ascarelli, I. and Bondi, A. 1962. The influence of heating on the nutritive value of soya-bean meal for ruminants. Br. J. Nutr. 16: 237243.CrossRefGoogle ScholarPubMed