Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-28T01:04:57.689Z Has data issue: false hasContentIssue false

Dietary nitrogen and phosphorus depletion in cattle and their effects on liveweight gain, blood metabolite concentrations and phosphorus kinetics

Published online by Cambridge University Press:  27 March 2009

G. Bortolussi
Affiliation:
Department of Agriculture, The University of Queensland, Brisbane, Qld 4072, Australia
J. H. Ternouth
Affiliation:
Department of Agriculture, The University of Queensland, Brisbane, Qld 4072, Australia
N. P. McMeniman
Affiliation:
Department of Farm Animal Medicine and Production, The University of Queensland, Brisbane, Qld 4072, Australia

Summary

In a 15-week animal-house experiment, 24 steers were offered one of six diets based on molasses and ad libitum barley straw. Three levels of dietary nitrogen (N) and three levels of dietary phosphorus (P), in factorial combination, were formulated by the addition of urea, formaldehyde-treated wheat gluten and monosodium orthophosphate. Food intake, liveweight gain, plasma metabolites and P kinetics were measured under dietary regimens similar to those experienced by cattle grazing Australia's northern semi-arid rangelands.

The adverse effect of the low dietary N on both liveweight change and feed intake was greater and more immediate than that of the dietary P deficiency. The reduction in feed intake due to the P deficiency approached that caused by the N deficiency after 10 weeks. Under conditions of adequate dietary N, there was a trend for the effects of P deficiency on liveweight gain to be exacerbated. Dietary N and P deficiency reduced the concentrations of plasma urea-N and inorganic P respectively. Dietary N deficiency had no effect on cortical rib bone thickness but P deficiency markedly decreased bone thickness. Faecal endogenous loss of P and P absorption efficiency ranged from 9 to 21 mg/kg LW and 0·63 to 0·82 respectively for P intakes from 6 to 41 mg·kg LW. Faecal endogenous losses were closely related to dry matter intake and plasma inorganic P together. Dietary N deficiency affected the efficiency of absorption of P.

The results of this experiment indicate that cattle consuming diets containing low levels of N and P require supplementary N and P in combination to avoid severe depletion since an increase in N intake alone exacerbated the P deficiency. The results are also discussed in relation to the published findings regarding P metabolism and the implications for the calculation of P requirements.

Type
Animals
Copyright
Copyright © Cambridge University Press 1996

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

Agricultural and Food Research Council (1991). A Reappraisal of the Calcium and Phosphorus Requirements of Sheep and Cattle. Technical Committee on Responses to Nutrients. Commonwealth Agricultural Bureaux International. Nutrition Abstracts and Reviews (Series B) 61, 573612.Google Scholar
Agricultural Research Council (1980). The Nutrient Requirements of Ruminant Livestock. Slough, UK: Commonwealth Agricultural Bureaux.Google Scholar
Bass, J. M., Fishwick, G., Hemingway, R. G., Parkins, J. J. & Ritchie, N. S. (1981). The effects of supplementary phosphorus on the voluntary consumption and digestibility of a low phosphorus straw-based diet given to beef cows during pregnancy and early lactation. Journal of Agricultural Science, Cambridge 97, 365372.CrossRefGoogle Scholar
Bortolussi, G., Ternouth, J. H. & McMeniman, N. P. (1992). The effects of dietary nitrogen and calcium supplementation on Bos indicus cross cattle offered low P diets. Proceedings of the Australian Society of Animal Production 19, 381384.Google Scholar
Braithwaite, G. D. (1983). Calcium and phosphorus requirements of the ewe during pregnancy and lactation. 2. Phosphorus. British Journal of Nutrition 50, 723736.CrossRefGoogle ScholarPubMed
Braithwaite, G. D. (1984). Some observations on phosphorus homoeostasis and requirements of sheep. Journal of Agricultural Science, Cambridge 102, 295306.CrossRefGoogle Scholar
Campling, R. C., Freer, M. & Balch, C. C. (1962). Factors affecting the voluntary intake of food by cows. 3. The effect of urea on the voluntary intake of oat straw. British Journal of Nutrition 16, 115124.CrossRefGoogle ScholarPubMed
Challa, J., Braithwaite, G. D. & Dhanoa, M. S. (1989). Phosphorus homoeostasis in growing calves. Journal of Agricultural Science, Cambridge 112, 217226.CrossRefGoogle Scholar
Coates, D. B. & Ternouth, J. H. (1992). Phosphorus kinetics of cattle grazing tropical pastures and implications for the estimation of their phosphorus requirements. Journal of Agricultural Science, Cambridge 119, 401409.CrossRefGoogle Scholar
Coates, D. B., Kerridge, P. C., Miller, C. P. & Winter, W. H. (1990). Phosphorus and beef production in northern Australia. 7. The effect of phosphorus on the composition, yield, and quality of legume based pasture and their relation to animal production. Tropical Grasslands 24, 209220.Google Scholar
Egan, A. R. (1965). Nutritional status and intake regulation in sheep. III. The relationship between improvement of nitrogen status and increase in voluntary intake of low-protein roughage by sheep. Australian Journal of Agricultural Research 16, 463472.CrossRefGoogle Scholar
Elliott, R. & McMeniman, N. P. (1987). Forages as supplements. In The Nutrition of Herbivores: Second International Symposium on the Nutrition of Herbivores (Eds Hacker, J. B. & Ternouth, J. H.), pp. 409428. Brisbane, Australia: Academic Press.Google Scholar
Fiske, C. H. & SubbaRow, Y. (1925). The colorimetric determination of phosphorus. Journal of Biological Chemistry 66, 375400.CrossRefGoogle Scholar
Gilbert, M. A., Edwards, D. G., Shaw, K. A. & Jones, R. K. (1989 a). Effect of phosphorus supply on three perennial Stylosanthes species in tropical Australia. II. Phosphorus and nitrogen within the plant and implications for grazing animals. Australian Journal of Agricultural Research 40, 12051216.CrossRefGoogle Scholar
Gilbert, M. A., Jones, R. K., Shaw, K. A. & Edwards, D. G. (1989 b). Effect of phosphorus supply on three perennial Stylosanthes species in tropical Australia. III. Potassium, calcium, magnesium and sodium concentrations and implications for grazing animals. Australian Journal of Agricultural Research 40, 12171225.CrossRefGoogle Scholar
Gunn, K. J. & Ternouth, J. H. (1994). The effect of phosphorus deficiency upon ruminal microbial activity and nitrogen balance in lambs. Proceedings of the Australian Society of Animal Production 20, 445.Google Scholar
Kempton, T. J. & Leng, R. A. (1979). Protein nutrition of growing lambs. 1. Responses in growth and rumen function to supplementation of a low-protein-cellulosic diet with either urea, casein or formaldehyde treated casein. British Journal of Nutrition 42, 289302.CrossRefGoogle ScholarPubMed
Kerridge, P. C., Gilbert, M. A. & Coates, D. B. (1990). Phosphorus and beef production in northern Australia. 8. The status and management of soil phosphorus in relation to beef production. Tropical Grasslands 24, 221230.Google Scholar
Komisarczuk, S., Merry, R. J. & McAllan, A. B. (1987). Effect of different levels of phosphorus on rumen microbial fermentation and synthesis determined using a continuous culture technique. British Journal of Nutrition 57, 279290.CrossRefGoogle ScholarPubMed
Komisarczuk-Bony, S. & Durand, M. (1991). Nutrient requirement of rumen microbes. In Recent Advances on the Nutrition of Herbivores: Proceedings of the Third International Symposium on the Nutrition of Herbivores (Eds Yo, Y. W., Wong, H. K., Abdullah, N. & Tajuddin, Z. A.), pp. 131141. Kuala Lumpur: Malaysian Society of Animal Production.Google Scholar
Lemerle, C., Barrett, L. & Murray, R. M. (1980). Seasonal changes in pasture quality in the dry tropics. Proceedings of the Australian Society of Animal Production 13, 464.Google Scholar
LeRoith, D. & Pimstone, B. L. (1973). Bone metabolism and composition in the protein deprived rat. Clinical Science 44, 305319.CrossRefGoogle Scholar
Little, D. A. (1968). Effect of dietary phosphate on the voluntary consumption of Townsville lucerne (Stylosanthes humilis) by cattle. Proceedings of the Australian Society of Animal Production 7, 376380.Google Scholar
Little, D. A. (1972). Bone biopsy in cattle and sheep for studies of phosphorus status. Australian Veterinary Journal 48, 668670.CrossRefGoogle ScholarPubMed
Little, D. A. (1984). Definition of an objective criterion of body phosphorus reserves in cattle and its evaluation in vivo. Canadian Journal of Animal Science 64 (Supplement), 229231.CrossRefGoogle Scholar
Little, D. A., Robinson, P. J., Playne, M. J. & Haycock, K. P. (1971). Factors affecting blood inorganic phosphorus determination in cattle. Australian Veterinary Journal 47, 153156.CrossRefGoogle ScholarPubMed
Matsui, T., Harumoto, T., Funaba, M., Tano, H. & Kawashima, R. (1989). Influences of protein deficiency on Ca and bone metabolism in ruminants. Recent Progress on Mineral Nutrition and Mineral Requirements in Ruminants: Proceedings of the International Meeting on Mineral Nutrition and Requirements in Ruminants, September 1989 (Eds Kawashima, R., Durand, M. & Yano, F.), pp. 1118. Kyoto University: Kyoto, Japan.Google Scholar
McLean, R. W., Hendricksen, R. E., Coates, D. B. & Winter, W. H. (1990). Phosphorus and beef production in northern Australia. 6. Dietary attributes and their relation to cattle growth. Tropical Grasslands 24, 197208.Google Scholar
McMeniman, N. P. (1990). The effect of urea supplementation on the maintenance of body protein stores in sheep. Proceedings of the Australian Society of Animal Production 18, 296299.Google Scholar
Milton, J. T. B. & Ternouth, J. H. (1985). Phosphorus metabolism in ruminants. II. Effects of inorganic phosphorus concentration upon food intake and digestibility. Australian Journal of Agricultural Research 36, 647654.CrossRefGoogle Scholar
Petri, A., Müschen, H., Breves, G., Richter, O. & Pfeffer, E. (1988). Response of lactating goats to low phosphorus intake. 2. Nitrogen transfer from rumen ammonia to rumen microbes and proportion of milk protein derived from microbial amino acids. Journal of Agricultural Science, Cambridge 111, 265271.CrossRefGoogle Scholar
Satter, L. D. & Slyter, L.L. (1974). Effect of ammonia concentration on rumen microbial protein production in vitro. British Journal of Nutrition 32, 199208.CrossRefGoogle ScholarPubMed
Siebert, B. D., Newman, D. M. R., Hart, B. & Michell, G. L. (1975). Effects of feeding varying levels of protein and phosphorus in relation to bone disorders in cattle. Australian Journal of Experimental Agriculture and Animal Husbandry 15, 321324.CrossRefGoogle Scholar
Ternouth, J. H. (1989). Endogenous losses of phosphorus by sheep. Journal of Agricultural Science, Cambridge 113, 291297.CrossRefGoogle Scholar
Ternouth, J. H. & Sevilla, C. C. (1990). The effects of lowlevels of dietary phosphorus upon the dry matter intake and metabolism of lambs. Australian Journal of Agricultural Research 41, 175184.CrossRefGoogle Scholar
Ternouth, J. H., Davies, H. M. S., Milton, J. T. B., Simpson-Morgan, M. W. & Sands, N. E. (1985). Phosphorus metabolism in ruminants. I. Techniques for phosphorus depletion. Australian Journal of Agricultural Research 36, 637645.CrossRefGoogle Scholar
Ternouth, J. H., McLachlan, B. P., Clarke, J. M. & Thomas, B. J. (1993). Effects of dietary phosphorus and nitrogen deficiencies on the intake, growth and metabolism of lambs. Journal of Agricultural Science, Cambridge 121, 409419.CrossRefGoogle Scholar
Tuen, A. A., Wadsworth, J. C. & Murray, M. (1984). Absorption of calcium and phosphorus by growing cattle during dietary protein deficiency. Proceedings of the Nutrition Society of Australia 9, 144147.Google Scholar
Van Niekerk, B. D. H. & Jacobs, G. A. (1985). Protein, energy and phosphorus supplementation of cattle fed lowquality forage. South African Journal of Animal Science 15, 133136.Google Scholar
Van Soest, P. J. & Wine, R. H. (1967). Use of detergents in the analysis of fibrous feeds. IV. Determination of plant cell-wall constituents. Journal of the Association of Official Analytical Chemists 50, 5055.Google Scholar