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The influence of formic acid and formaldehyde additives and type of harvesting machine on the utilization of nitrogen in lucerne silages: 1. The voluntary intake and nitrogen rerention of young sheep consuming the silages with and without intraperitoneal supplements of DL-methionine

Published online by Cambridge University Press:  27 March 2009

T. N. Barry ,
J. E. Cook  and
R. J. Wilkins
T. N. Barry
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berks SL6 5LR
J. E. Cook
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berks SL6 5LR
R. J. Wilkins
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berks SL6 5LR
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Summary

Silages were made from lucerne using either a flail or a precision-chop harvester without additive, with 8 1 formaldehyde (35% w/w/)/t or with 1·5, 3·0 or 6·01 formic acid (85% w/w)/t. The silages were deep frozen and later offered to young sheep with and without intraperitoneal injections of DL-methionine. Fresh lucerne, cut with both machines from the same crop, was deep frozen and offered to sheep with and without methionine injections in a separate experiment.

The untreated silages were characterized by extensive protein degradation, high contents of ammonia and acetic acid and low contents of lactic acid. Formaldehyde markedly reduced protein degradation and carbohydrate fermentation in the silo and caused a large reduction in nitrogen digestibility; these effects were of greater magnitude with precision-chopped than with flail-harvested silage. Voluntary intake and nitrogen retention were increased by formaldehyde application.

Increased rate of addition of formic acid reduced the overall extent of carbohydrate fermentation, decreased the proportion of fermentation products Which could be attributed to clostridial activity, and decreased protein degradation, though not by the same extent as did formaldehyde. With the precision-chop harvester, formic acid addition increased both voluntary intake and nitrogen retention. Intakes were low on the three flail-harvested silages made with formic acid, as these were heavily contaminated with soil. However, the additive improved nitrogen utilization and within this group of treatments intake increased with increasing rate of formic acid application. The increases in nitrogen retention with additive treatment resulted from increases in the quantity of nitrogen truly retained per unit of nitrogen intake as well as from increases in intake.

Methionine supplementation had no effect on voluntary intake, but caused a small and consistent improvement in nitrogen utilization except with the soil-contaminated silages. There was no effect of methionine supplementation on utilization of nitrogen in the fresh lucerne.

Voluntary intake, apparent biological value and nitrogen retention all decreased linearly with increasing protein degradation and formation of acetic acid and ammonia. Separate regression equations were calculated for the prediction of organic-matter intake for silages made with the two types of harvester. These were parallel, but with intakes from the precision-chopped silages higher by ca. 20 g D.M./kg W0·75 per day. Precision chopping produced a similar advantage with the fresh lucerne. Data from silages made by the two harvesting methods fitted the same regressions for nitrogen retention, which decreased by 0·3 g/day for each 1% increase in ammonia-N (% total N). It was deduced that to produce silage with high nutritive value it is particularly important that the degradation of amino acids by proteolytic clostridia is prevented; restriction of the degradation in the silo of true protein to amino acids is apparently less important.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 91 , Issue 3 , December 1978 , pp. 701 - 715
Copyright
Copyright © Cambridge University Press 1978

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References

Agricultural Research Council (1965). The Nutrient Requirements of Farm Livestock, No. 2 Ruminants. London: H.M.S.O.Google Scholar
Barry, T. N. (1975). Effect of treatment with formaldehyde, formic acid and formaldehyde-acid mixtures on the chemical composition and nutritive value of silage. 1. Silages made from immature pasture compared with hay. New Zealand Journal of Agricultural Research 18, 285–294.CrossRefGoogle Scholar
Barry, T. N. (1976 a). The effectiveness of formaldehyde treatment in protecting dietary protein from rumen microbial degradation. Proceedings of the Nutrition Society 35, 221–229.CrossRefGoogle ScholarPubMed
Barry, T. N. (1976 b). Effects of intraperitoneal injections of DL-methionine on the voluntary intake and wool growth of sheep fed sole diets of hay, silage and pasture differing in digestibility. Journal of Agricultural Science, Cambridge 86, 141—149.CrossRefGoogle Scholar
Barry, T. N. & Fennessy, P. F. (1972). The effect of formaldehyde treatment on the chemical composition and nutritive value of silage. 1. Chemical composition New Zealand Journal of Agricultural Research 15, 712–722.CrossRefGoogle Scholar
Barry, T. N., Fennessy, P. F. & Duncan, S. J. (1973). Effect of formaldehyde treatment on the chemical composition and nutritive value of silage. III. Voluntary intake, liveweight gain and wool growth in sheep fed the silages with and without intraperitoneal supplementation with DL-methionine. New Zealand Journal of Agricultural Research 16, 64–68.CrossRefGoogle Scholar
Barry, T. N., Mundell, D. C., Wilkins, R. J. & Beever, D. E. (1978). The influence of formic acid and formaldehyde additives and type of harvesting machine on the utilization of nitrogen in lucerne silages. 2. Changes in amino-acid composition during ensiling and their influence on nutritive value. Journal of Agricultural Science, Gambridge 91, 717–725.CrossRefGoogle Scholar
Barry, T. N. & Wilkins, R. J. (1976). The effect of time upon response to intraperitoneal injections of DL-methionine in sheep fed silage diets. Proceedings of the Nutrition Society 35, 111A–112A.Google ScholarPubMed
Beever, D. E., Cammell, S. B. & Wallace, A. (1974). The digestion of fresh, frozen and dried perennial ryegrass. Proceedings of the Nutrition Society 33, 73A–74A.Google Scholar
Beever, D. E., Thomson, D. J., Cammell, S. B. & Harrison, D. G. (1977). The digestion by sheep of silages made with or without the addition of formaldehyde. Journal of Agricultural Science, Gambridge 88, 61–70.CrossRefGoogle Scholar
Clark, J. H. (1975). Lactational responses to postruminal administration of proteins and amino acids. Journal of Dairy Science 58, 1178–1197.CrossRefGoogle ScholarPubMed
Crampton, E. W. & Maynard, L. A. (1938). The relations of cellulose and lignin content to the nutrition value of animal feeds. Journal of Nutrition 15, 383–395.CrossRefGoogle Scholar
Demarquilly, C. (1973). Composition chimique, caracteristiques fermentaires, digestibilite et quantites ingerees des ensilages: modification par rapport au fourrage vert initial. Annales de Zootechnie 22, 1–35.CrossRefGoogle Scholar
Dewar, W. A. & McDonald, P. (1961). Determination of dry matter in silage by distillation with toluene. Journal of the Science of Food and Agriculture 12, 790–795.CrossRefGoogle Scholar
Dulphy, J. P. & Demabquilly, C. (1973). Influence de la machine de recolte et de la finesse de hachage sur la valeur alimentaire des ensilages. Annales de Zootechnie 22, 199–217.CrossRefGoogle Scholar
Egan, A. R. & Walker, D. J. (1973). Resource allocation and ruminant protein production. Proceedings of the 3rd World Conference on Animal Production, Sydney, Australia (ed. Reid, R. L.), pp. 551–562.Google Scholar
Ferguson, K. A. (1975). The protection of dietary proteins and amino acids against microbial fermentation in the rumen. In Digestion and Metabolism in the Ruminant. Proceedings of the IV International Symposium on Ruminant Physiology (ed. McDonald, I. W. and Warner, A. C. I.), pp. 448–464.Google Scholar
Ferguson, K. A., Hemsley, J. A. & Reis, P. J. (1967). Nutrition and wool growth. The effect of protecting dietary protein from microbial degradation in the rumen. Australian Journal of Science 30, 215–217.Google Scholar
Hutchinson, K. J., Wilkins, R. J. & Osbourn, D. F. (1971). The voluntary intake of silage by sheep. III. The effects of post-ruminal infusions of casein on the intake and nitrogen retention of sheep given silage ad libitum. Journal of Agricultural Science, Cambridge 77, 545–547.CrossRefGoogle Scholar
Lancaster, R. J. (1976). Effect of formaldehydetreated casein and methionine on the intake of silage by sheep. Proceedings of the New Zealand Society of Animal Production 36, 127.Google Scholar
Macrae, J. C., Campbell, D. R. & Eadie, J. (1975). Changes in the biochemical composition of herbage upon freezing and thawing. Journal of Agricultural Science, Cambridge 84, 125–131.CrossRefGoogle Scholar
McDonald, P. & Whittenbury, R. (1973). The ensilage process. In The Chemistry and Biochemistry of Herbage, vol. 3 (ed. Butler, G. W. and Bailey, R. W.), pp. 33–60. London and New York: Academic Press.Google Scholar
Nimbick, K., Hatheld, D. E., Kaminski, J. & Owens, F. W. (1970 a). Qualitative assessment of supplemental amino acid needs for growing lambs fed urea as a sole nitrogen source. Journal of Nutrition 100, 1293–1300.CrossRefGoogle Scholar
Nimrick, K., Hatfield, D. E., Kaminski, J. & Owens, F. W. (1970 b). Quantitative assessment of supplemental amino acid needs for growing lambs fed urea as a sole nitrogen source. Journal of Nutrition 100, 1301–1306.CrossRefGoogle ScholarPubMed
Reis, P. J. & Schinckel, P. G. (1964). The growth and composition of wool. II. The effect of casein, gelatin and sulphur-containing amino acids given per abomasum. Australian Journal of Biological Sciences 17, 532–547.CrossRefGoogle Scholar
Van Soest, P. J. (1963). Use of detergents in the analysis of fibrous feeds. II. A rapid method for the determination of fiber and lignin. Journal of the Association of Official Agricultural Chemists 46, 829–835.Google Scholar
Waldo, D. R. (1973). Silage protein quality effects on heifer performance. Journal of Animal Science 37, 359.Google Scholar
Waldo, D. R. (1975). Silage and supplemental nitrogen solubility effects on heifer performance. Journal of Animal Science 41, 424.Google Scholar
Wilkins, R. J., Hutchinson, K. J., Wilson, R. F. & Harris, C. E. (1971). The voluntary intake of silage by sheep. I. Interrelationships between silage composition and intake. Journal of Agricultural Science, Cambridge 77, 531–537.CrossRefGoogle Scholar
Wilkins, R. J., Wilson, R. F. & Cook, J. E. (1974). Restriction of fermentation during ensilage: the nutritive value of silages made with the addition of formaldehyde. Proceedings of 12th International Grassland Congress, Moscow, 3, part 2, pp. 674–690.Google Scholar
Wilkinson, J. M., Wilson, R. F. & Barry, T. N. (1976). Factors affecting the nutritive value of silage. Outlook on Agriculture 9, 3–8.CrossRefGoogle Scholar
Wilson, R. F. & Wilkins, R. J. (1973 a). Formic acid as a silage additive for wet crops of cocksfoot and lucerne. Journal of Agricultural Science, Cambridge 80, 225–231.CrossRefGoogle Scholar
Wilson, R. F. & Wilkins, R. J. (1973 b). Formic acid as a silage additive. I. Effects of formic acid on fermentation in laboratory silos. Journal of Agricultural Science, Cambridge 81, 117–124.CrossRefGoogle Scholar
Wilson, R. F. & Wilkins, R. J. (1978). Paraformaldehyde. dehyde as a silage additive. Journal of Agricultural Science, Cambridge 91, 23–29.CrossRefGoogle Scholar