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Effects of supplementing maize and grass silages with barley, and maize silage with urea or ammonia, on the intake and performance of fattening bulls

Published online by Cambridge University Press:  02 September 2010

K. Aston  and
J. C. Tayler
K. Aston
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
J. C. Tayler
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
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Abstract

1. Experiment 1. Six treatment groups of one British Friesian and four South Devon × British Friesian bulls, initially 432 kg mean live weight and aged 491 days, were offered individually maize or grass silage ad libitum plus 0, 5 or 10g barley dry matter per kg live weight daily for 80 days. The silages had similar digestible dry matter and estimated metabolizable energy contents but the grass silage contained more ammonia and acetic, propionic and butyric acids. Mean values for groups receiving respectively maize and grass silage diets were for dry-matter intake 17·7, 20·3, 20·4 and 13·0, 16·6, 18·7 g/kg live weight and for live-weight gain 1·00, 1·32, 1·46 and 0·65, 0·98, 1·22kg/day. Significantly more maize than grass silage dry matter was eaten when the silages were given alone and dry-matter intakes, live-weight and carcass gains were greater for maize silage diets. Dry-matter intake, live-weight and carcass gains, efficiency of feed use and carcass quality significantly improved when barley was given.

2. Experiment 2. Six groups of five British Friesian bulls, initially 418 kg mean live weight and aged 474 days, were offered individually maize silage ad libitum with either urea or one of two quantities of aqueous ammonia mixed in at the time of feeding, plus 0 or 5 g barley dry matter per kg live weight daily for 90 days. The urea and ammonia-treated silages contained 125, 124 and 148 g crude protein per kg dry matter respectively, with pH values of 3·8, 3·9 and 4·3, and when given alone or with barley mean daily intakes (g dry matter per kg live weight) were 17·1, 18·6 for urea-treated silage diets, and 17·8, 18·8 and 16·9, 19·1 respectively for ammoniatreated silage diets. Live-weight gains were 0·69, 0·94, 0·63, 1·09, 0·64 and 1·07 kg/day. Ammonia treatment had no effect on intake or live-weight gain. Live-weight and carcass gains and carcass quality improved when barley was given.

3. The maize silage offered in Experiment 1 contained similar metabolizable energy but more starch than that in Experiment 2 and was used more efficiently for live-weight gain.

Type
Research Article
Information
Animal Production , Volume 31 , Issue 3 , December 1980 , pp. 243 - 250
Copyright
Copyright © British Society of Animal Science 1980

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References

REFERENCES

Agricultural Research Council. 1965. The Nutrient Requirements of Farm Livestock. No. 2, Ruminants. Agricultural Research Council, London.Google Scholar
Association of Official Agricultural Chemists. 1965. Official Methods of Analysis of the Association of Official Agricultural Chemists. 10th ed. Association of Official Agricultural Chemists, Washington, DC.Google Scholar
Aston, K., Daley, S. R. and Tayler, J. C. 1979. Maize silage for milk production: the influence of concentrate supplementation and the effect of adding urea or ammonia before feeding. Anim. Prod. 29: 163–173.Google Scholar
Blaxter, K. L. and Wainman, F. W. 1964. The utilization of the energy of different rations by sheep and cattle for maintenance and for fattening. J. agric. Sci., Camb. 63: 113–128.CrossRefGoogle Scholar
Cottrill, B. R., Osbourn, D. F., Wilkinson, J. M. and Richmond, P. J. 1976. The effect of dietary pH and nitrogen supplementation on the intake and utilization of maize silage by young calves. Anim. Prod. 22: 154–155. (Abstr.).Google Scholar
Crampton, E. W. and Maynard, L. A. 1938. The relation of cellulose and lignin content to the nutritive value of animal feeds. J. Nutr. 15: 383–395.CrossRefGoogle Scholar
Demarquilly, C. 1973. [Chemical composition, fermentation characteristics, digestibility and voluntary intake of forage silages: changes compared to the initial green forage.] Annls Zootech. 22: 1–35.CrossRefGoogle Scholar
Lonsdale, C. R. 1976. The effect of season of harvest on the utilization of dried grass given alone or as supplements to grass silage. Ph. D. Thesis, Univ. Reading.Google Scholar
McAllan, A. B. and Phipps, R. H. 1977. The effect of sample date and plant density on the carbohydrate content of forage maize and the changes that occur on ensiling. J. agric. Sci., Camb. 89: 589–597.CrossRefGoogle Scholar
McDonald, P., Henderson, A. R. and Ralton, I. 1973. Energy changes during ensilage. J. Sci. Fd Agric. 24: 827–834.CrossRefGoogle ScholarPubMed
Meat and Livestock Commission. 1974. Beef carcase classification. Beef Improvement Services. Newsl. No. 21. Meat and Livestock Commission, Bletchley, Milton Keynes.Google Scholar
Ministry of Agriculture, Fisheries and Food, Department of Agriculture and Fisheries for Scotland and Department of Agriculture for Northern Ireland. 1975. Energy allowances and feeding systems for ruminants. Tech. Bull. 33. Her Majesty's Stationery Office, London.Google Scholar
Phipps, R. H., Weller, R. F. and Fulford, Rosemary J. 1979. The development of plant components and their effects on the composition of fresh and ensiled forage maize. 3. The effect of grain content on milk production. J. agric. Sci., Camb. 92: 493–498.CrossRefGoogle Scholar
Poutiainen, E. K., Lonsdale, C. R. and Outen, G. E. 1971. The growth of young cattle fed on dried grass alone and with barley. 2. Effects on digestion. Anim. Prod. 13: 473–484.Google Scholar
Roy, J. H. B., Balch, C. C., Miller, E. L., Ørskov, E. R. and Smith, R. H. 1977. Calculation of the N-requirement for ruminants from nitrogen metabolism studies. Proc. 2nd int. Symp. Protein Metabolism and Nutrition, Flevohov. Eur. Ass. Anim. Prod. Publ. No. 22, pp. 126–129.Google Scholar
Tayler, J. C., Crabtree, J. R. and Laws, J. 1974. Bull-beef production from grass; a comparison of barley and dried grass as supplements to pasture and silage in an 18-month system. Tech. Rep. No. 13, Grassld res. Inst., Hurley, Maidenhead.Google Scholar
Terry, R. A., Tilley, J. M. A. and Outen, G. E. 1969. Effect of pH on cellulose digestion under in vitro conditions. J. Sci. Fd Agric. 20: 317–320.CrossRefGoogle Scholar
Thomas, C. and Wilkinson, J. M. 1974. The voluntary intake of maize silage treated with ammonia. Proc. Br. Soc. Anim. Prod. (New Series) 3: 102–103 (Abstr.).Google Scholar
Thomas, C. and Wilkinson, J. M. 1975. The utilization of maize silage for intensive beef production. 3. Nitrogen and acidity as factors affecting the nutritive value of ensiled maize. J. agric. Sci., Camb. 85: 255–261.CrossRefGoogle Scholar
Tukey, J. W. 1953. The Problem of Multiple Comparisons. Princeton University, Princeton, NJ. (Mimeograph).Google Scholar
Wilkins, R. J., Fenlon, J. S., Cook, J. E. and Wilson, R. F. 1978. A further analysis of relationships between silage composition and voluntary intake by sheep. Proc. 5th Silage Conf, Hannah Res. Inst., Ayr, pp. 34–35.Google Scholar
Wilkins, R. J., Hutchinson, K. J., Wilson, R. F. and Harris, C. E. 1971. The voluntary intake of silage by sheep. I. Interrelationships between silage composition and intake. J. agric. Sci., Camb. 77: 531–537.CrossRefGoogle Scholar
Wilkinson, J. M. and Kilkenny, J. B. 1977. The Conservation and Utilization of Maize Silage. 2nd ed. Maize Development Association, Tunbridge Wells.Google Scholar
Wilkinson, J. M. and Penning, Ines M. 1976. An intensive system of beef production from maize silage. Anim. Prod. 23: 181–190.Google Scholar
Wilson, R. F., Tilley, J. M. A. and Steemers, Maria A.-Th. 1964. Comparison of oven drying and toluene distillation in the determination of the dry-matter content of silage. J. Sci. Fd Agric. 15: 197–200.CrossRefGoogle Scholar
Wilson, R. F. and Wilkins, R. J. 1973. Formic acid as a silage additive for wet crops of cocksfoot and lucerne. J. agric. Sci., Camb. 80: 225–231.CrossRefGoogle Scholar
Wilson, R. F. and Wilkins, R. J. 1978. Paraformaldehyde as a silage additive. J. agric. Sci., Camb. 91: 23–29.CrossRefGoogle Scholar