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A note on the effects of dietary inclusion of a yeast culture on growth and ruminal metabolism of lambs given diets containing unground pelleted molassed dried sugar-beet pulp and barley in various proportions

Published online by Cambridge University Press:  02 September 2010

Y. Rouzbehan ,
H. Galbraith ,
J. A. Rooke  and
J. G. Perrott
Y. Rouzbehan
Affiliation:
School of Agriculture, 581 King Street, Aberdeen AB9 1UD
H. Galbraith
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB9 1UD
J. A. Rooke
Affiliation:
Animal and Feed Technology Department, Scottish Agricultural College, Aberdeen
J. G. Perrott
Affiliation:
Trident Feeds, PO Box 11, Peterborough UK
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Abstract

Twenty-eight Suffolk-cross male castrated lambs aged 7 to 8 months, initial live weight 36 (s.e. 149) kg were given four diets which contained unground pelleted molassed sugar-beet pulp and rolled barley (940 g/kg, fresh weight basis) in the following proportions either A, 0·8 to 0·2 or B, 0·5 to 0·5, with 60 g soya-bean meal per kg. Diets A and B were offered with or without a yeast culture product Yea-Sacc. Diets zvere offered twice daily to appetite with 100 g hay per head. Yeast culture had no effect on any measurement made (P > 0·05). Lambs given diet B consumed more dry matter (DM), grew faster and had superior food conversion efficiencies (all P < 0·01). Rumen fluid taken 3 h after feeding contained higher concentrations of ammonia (F < 0·01), total volatile fatty acids (F < 0·001) and acetic acid (F < 0·001) in samples from lambs given diet A. Rumen fluid samples collected before the 10·00 h meal, produced more gas from diet A than diet B after 6 and 24 h in vitro incubation (F < 0·001) suggesting the presence of more undigested food. When ground diets were incubated, more gas was produced from diet A after 6h (F < 0·05) but not after 24 h fP > 0·05). It is suggested that diet B supported faster growth of the lambs as a result of faster rate of digestion, higher DM intake and superior food conversion.

Keywords

growthlambsrumen fermentationsugar-beet pulpyeast
Type
Research Article
Information
Animal Production , Volume 59 , Issue 1 , August 1994 , pp. 147 - 150
Copyright
Copyright © British Society of Animal Science 1994

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References

Galbraith, H., Mandebvu, P., Thompson, J. K. and Franklin, M. 1989. Effects of diets differing in the proportion of sugar-beet pulp and barley on growth, body composition and metabolism of entire male lambs. Animal Production 48: 652 (abstr.).Google Scholar
Harrison, G. A., Hemken, R. W., Dawson, K. A., Harmon, R. J. and Barker, K. B. 1988. Influence of addition of yeast culture to diets of lactating cows on ruminal fermentation and microbial populations, journal of Dairy Science 71: 2967–2975.CrossRefGoogle ScholarPubMed
Lawes Agricultural Trust. 1987. GENSTAT 5 reference manual. Clarendon Press, Oxford.Google Scholar
Menke, K. H. and Steingass, H. 1987. Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen liquor. Animal Research and Development 28: 7–55.Google Scholar
Mutsvangwa, T., Edwards, I. E., Topps, J. H. and Paterson, G. F. M. 1992. The effect of a dietary inclusion of yeast culture (Yea-Sacc) on patterns of rumen fermentation, food intake and growth of intensively fed bulls. Animal Production 55: 35–40.Google Scholar
Newbold, C. J., Williams, N. M., Walker, A. and Wallace, J. R. 1990. The effects of yeast numbers and fermentation in the rumen of sheep. Proceedings of the Nutrition Society 49: 47A (abstr.).Google Scholar
Offer, N. W. and Al-Rwidah, M. N. 1989. The use of absorbent materials to control effluent loss from grass silage: experiments with drum silos. Research and Development in Agriculture 6: 71–76.Google Scholar
ørskov, E. R. and Ryle, M. 1990. Energy nutrition in ruminants. Elsevier, Amsterdam.Google Scholar
Rooke, J. A., Borman, A. L. and Armstrong, D. G. 1990. The effect of inoculation with Lactobacillus plantarum on fermentation in laboratory silos of herbage low in water-soluble carbohydrate. Grass and Forage Science 45: 143–152.CrossRefGoogle Scholar