Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-04T19:29:00.050Z Has data issue: false hasContentIssue false
  • English
  • Français

The effect of oestradiol-17 β implantation on the response in voluntary intake, live-weight gain and body composition, to fishmeal supplementation of silage offered to growing calves

Published online by Cambridge University Press:  27 March 2009

Margaret Gill ,
D. E. Beever ,
P. J. Buttery ,
P. England ,
M. J. Gibb  and
R. D. Baker
Margaret Gill
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
D. E. Beever
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
P. J. Buttery
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
P. England
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
M. J. Gibb
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
R. D. Baker
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
Get access Rights & Permissions [Opens in a new window]

Summary

The effect of oestradiol-17β on the response to fishmeal supplementation of grass silage was studied in young growing cattle. Voluntary intake and live-weight gain were recorded over 63 days with 36 British Friesian male castrates (initial live weight (LW) 119 kg) offered silage alone (C) or with 50 (FM1), 100 (FM2), or 150 (FM3) g fishmeal/kg silage dry matter. Twelve calves were allocated to each of treatments C and FM3 and six to treatments FM1 and FM2. Half of the calves on each treatment were ear-implanted with oestradiol-17β (Compudose 365) at the start of the experiment. The calves on treatments C and FM3 were slaughtered after 75 days and chemical analysis conducted on half of each carcass. The silage had an organic-matter digestibility in vivo of 0·794 and was well-fermented, with a pH of 3·7. Intake averaged 24·2±0·42 g D.M./kg LW over all the treatments and live-weight gain was 0·77 kg/day on the silage alone. There was a significant (P < 0·05) interaction between fishmeal and oestradiol-17β, such that response to the hormone was observed only in the presence of fishmeal at 100 or 150 g/kg silage D.M. A similar interaction was apparent between fishmeal at 150 g/kg silage D.M. and oestradiol-17β in the final weights of empty body and carcass. This level of fishmeal also increased protein gain from 96 to 147 g/day and this was further increased to 179 g/day in the implanted animals receiving fishmeal. However, the overall effect of oestradiol-17β on protein gain was not significant. Gross efficiency of energy utilization was significantly (P < 0·01) increased by fishmeal supplementation suggesting an improved balance of nutrients compared with the silage alone diet.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 108 , Issue 1 , February 1987 , pp. 9 - 16
Copyright
Copyright © Cambridge University Press 1987

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

Association of Official Agricultural Chemists (1965). Official Methods of Analysis. Washington, DC.Google Scholar
Agricultural Research Council (1980). The Nutrient Requirements of Ruminant Livestock. Farnham Royal: Commonwealth Agricultural Bureaux.Google Scholar
Buttery, P. J. & Sinnett-Smith, P. A. (1984). The mode of action of anabolic agents with special reference to their effects on protein metabolism – some speculations. In Manipulation of Growth in Farm Animals (ed. Roche, J. F. and O'Callaghan, D.), pp. 211–228. Lancaster: Martinus Nijhoff.CrossRefGoogle Scholar
Charmley, E. (1986). The comparative efficiency of unwilted and wilted silage systems. Ph.D. thesis, University of Reading.Google Scholar
England, P. & Gill, M. (1983). The effect of wilting and short-chopping of grass on the subsequent voluntary intake of silage and live-weight gain of calves. Animal Production 36, 73–77.Google Scholar
England, P. & Gill, M. (1985). The effect of fishmeal and sucrose supplementation on the voluntary intake of grass silage and live-weight gain of young cattle. Animal Production 40, 259–265.Google Scholar
Galbraith, H., Scaife, J., Paterson, G. F. M. & Hunter, E. A. (1983). Effect of trenbolone acetate combined with oestradiol-17β on the response of steers to changes in dietary protein. Journal of Agricultural Science, Cambridge 101, 249–252.CrossRefGoogle Scholar
Galbraith, H. & Topps, J. H. (1981). Effect of hormones on the growth and body composition of animals. Nutrition Abstracts and Reviews Series B, 521–540.Google Scholar
Garstang, J. R. (1981). Silage supplements for calves. Animal Production 32, 355 (abstract).Google Scholar
Garstang, J. R., Thomas, C. & Gill, M. (1979). The effect of supplementation of grass silage with fish meal on intake and performance by British Friesian calves. Animal Production 28, 423 (abstract).Google Scholar
Geay, Y., Robelin, J. & Jarrige, R. (1976). The influence of the Metabolizable Energy content of the diet on the efficiency of energy utilization for young fattening bulls. European Association of Animal Production Publication No. 19, pp. 225–228.Google Scholar
Gill, M. & Beever, D. E. (1982). The effect of protein supplementation on digestion and glucose metabolism in young cattle fed on silage. British Journal of Nutrition 48, 37–47.CrossRefGoogle ScholarPubMed
Gill, M., Beever, D. E., Buttery, P. J. & Baker, R. D. (1985). The effect of oestradiol implantation on the response to fishmeal in calves offered silage. Proceedings of the Nutrition Society 44, 115A.Google Scholar
Gill, M. & England, P. (1984). Effect of degradability of protein supplements on voluntary intake and nitrogen retention in young cattle fed grass silage. Animal Production 39, 31–36.Google Scholar
Graham, N. McC. (1980). Variation in energy and nitrogen utilization by sheep between weaning and maturity. Australian Journal of Agricultural Research 31, 335–345.CrossRefGoogle Scholar
Heitzman, R. J., Gibbons, D. N., Little, W. & Harrison, L. P. (1981). A note on the comparative performance of beef steers implanted with anabolic steroids trenbolone acetate and oestradiol-17β alone, or in combination. Animal Production 32, 219–222.Google Scholar
Kaiser, A. G., Osbourn, D. F. & England, P. (1983). Intake, digestion and nitrogen retention by calves given ryegrass silage: influence of formaldehyde treatment and supplementation with maize starch or maize starch and urea. Journal of Agricultural Science, Cambridge 100, 63–74.CrossRefGoogle Scholar
Kay, M., Reith, T. L. & Hunter, E. A. (1985). The use of fishmeal in beef production systems. Animal Production 40, 551–552 (abstract).Google Scholar
Kirby, P. S., Outhwaite, J. R. & Jones, T. O. (1985). A comparison of formaldehyde-treated soyabean meal and fish meal as protein supplements for finishing beef cattle given grass silage. Animal Production 40, 552 (abstract).Google Scholar
Lonsdale, C. R. (1976). The effect of season of harvest on the utilization by young cattle of dried grass given alone or as a supplement to grass silage. Ph.D. thesis, University of Reading.Google Scholar
Lowman, B. G., Neilson, D. R. & Hunter, E. A. (1985). The effect of growth promoters on fattening cattle: growth, intake and carcass composition. Animal Production 40, 538 (abstract).Google Scholar
MacRae, J. C. & Lobley, G. E. (1982). Some factors which influence thermal energy losses during the metabolism by ruminants. Livestock Production Science 9, 447–456.CrossRefGoogle Scholar
Owen, E. & Ochoa, C. (1982). Energy and protein supplementation of grass silage for Friesian steers: effect on performance from 4 to 7 months of age and on subsequent compensatory growth. Animal Production 34, 387–388 (abstract).Google Scholar
Steen, R. W. J. (1985). Protein supplementation of silage-based diets for calves. Animal Production 41, 292–300.Google Scholar
Thickett, W. S. & Taylor, J. (1984). The effects of implantation with oestradiol-17β and of two levels of protein in the compound diet during the finishing period of Friesian and Hereford cross Friesian steers. Animal Production 38, 544.Google Scholar
Thomas, C., Gibbs, B. G. & Tayler, J. C. (1981). Beef production from silage. 2. The performance of beef cattle given silages of either perennial ryegrass or red clover. Animal Production 32, 149–153.Google Scholar
Trenkle, A. (1976). The anabolic effect of oestrogens on nitrogen metabolism of growing and finishing cattle and sheep. In Anabolic Agents in Animal Production (ed. Coulston, F. and Korte, F.) Stuttgart: Georg Thieme.Google Scholar