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The feed intake and grazing behaviour of cattle grazing a crop of Lablab purpureus cv. Rongai

Published online by Cambridge University Press:  27 March 2009

R. Hendricksen  and
D. J. Minson
R. Hendricksen
Affiliation:
CSIRO Division of Tropical Crops and Pastures, St Lucia, Queensland, 4067, Australia
D. J. Minson
Affiliation:
CSIRO Division of Tropical Crops and Pastures, St Lucia, Queensland, 4067, Australia
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Summary

Eating behaviour and the diet selected by cattle progressively defoliating a crop of Lablab purpureus cv. Rongai were measured in three periods each of 12 days. Crop composition during defoliation was recorded.

At the beginning of grazing the crop contained 2230 kg green leaf/ha but after 12 days' grazing the crop contained only 300 kg/ha. In the first 6 days cattle selected a diet which contained 85% green leaf but after 12 days' grazing the selected diet contained only 17% green leaf. As available leaf declined, grazing time increased from 465 min on day 1 to 685 on day 6 before declining to 490 min on day 12. Maximum grazing time occurred with a green leaf yield of 1185 kg/ha. The number of eating bites increased from 26000 to 44500 between days 1 and 6 and then declined to 30000 after 12 days' grazing. Grazing time and the number of eating bites were significantly correlated (r = 0·99).

Bite size declined from 410 mg organic matter (OM)/bite on day 1 to 90 mg OM/bite on day 12. This decrease in bite size caused a linear decline (927 g/day) in estimated organic-matter intake. The rapid decline in bite size and intake was caused by the reduction in the quantity of leaf per unit area and the lack of desire of cattle to eat stem.

It was concluded that the desire of cattle to select leaf is so strong that stem yield should be largely disregarded when considering Rongai as a grazing crop.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 95 , Issue 3 , December 1980 , pp. 547 - 554
Copyright
Copyright © Cambridge University Press 1980

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References

REFERENCES

Agricultural Research Council (1965). The Nutrient Requirements of Farm Livestock. No. 2. Ruminants. London: Agricultural Research Council.Google Scholar
Chacon, E. & Stobbs, T. H. (1976). Influence of progressive defoliation of a grass sward on the eating behaviour of cattle. Australian Journal of Agricultural Research 27, 709–727.CrossRefGoogle Scholar
Chacon, E., Stobbs, T. H. & Haydock, K. P. (1977). Estimation of leaf and stem contents of oesophageal extrusa samples from cattle. Journal of the Australian Institute of Agricultural Science 43, 73–75.Google Scholar
Chacon, E., Stobbs, T. H. & Sandland, R. L. (1976). Estimation of herbage consumption by grazing cattle using measurement of eating behaviour. Journal of the British Grassland Society 31, 81–87.CrossRefGoogle Scholar
Hodgson, J. (1977). Factors limiting herbage intake by the grazing animal. Proceedings International Meeting on Animal Production from Temperate Grassland, Dublin 1977 (ed. Gilsenan, B.), pp. 70–75.Google Scholar
Johnson, A. D. & Simons, J. G. (1972). Direct emission spectroscopic analysis of plant tissue using a briquetting technique. Communications in Soil Sciences and Plant Analysis 3, 1–9.CrossRefGoogle Scholar
Jones, R. J. (1975). Comparison of two Leucaena cultivars. C.S.I.R.O. Division of Tropical Crops and Pastures Annual Report, p. 8.Google Scholar
Little, D. A. & Takken, A. (1970). Preparation of oesophageal fistulae in cattle under local anaesthesia. Australian Veterinary Journal 46, 335–337.CrossRefGoogle ScholarPubMed
Mears, P. T. & Humphreys, L. R. (1974). Nitrogen response and stocking rate of Pennisetum clandestinum pastures. 2. Cattle growth. Journal of Agricultural Science, Cambridge 83, 469–478.CrossRefGoogle Scholar
't Mannetje, L. (1974). Relations between pasture attributes and liveweight gains on a subtropical pasture. Proceedings of the 12th International Grassland Congress 3, 299–304.Google Scholar
Milford, R. & Minson, D. J. (1968). The effect of age and method of haymaking on the digestibility and voluntary intake of the forage legumes Dolichos lablab and Vigna sinensis. Australian Journal of Experimental Agriculture and Animal Husbandry 8, 409–412.CrossRefGoogle Scholar
Minson, D. J. & McLeod, M. N. (1972). The in vitro technique: its modification for estimating digestibility of large numbers of tropical pasture samples. Technical paper of the Division of Tropical Pastures, Commonwealth Scientific and Industrial Research Organisation, Australia, No. 8, pp. 1–15.Google Scholar
Moir, R. J., Somers, M. & Bray, A. C. (1967). Utilisation of dietory sulphur and nitrogen by ruminants. Sulphur Institute Journal 3, 15–18.Google Scholar
National Research Council (1970). Nutrient requirements of domestic animals. No. 4. Nutrient requirements of beef cattle. Washington: National Academy of Sciences, National Research Council, 4th revised edition.Google Scholar
Schaaffhausen, R. V. (1963). Dolichos lablab or Hyacinth Bean. Economic Botany 17, 146–153.CrossRefGoogle Scholar
Stobbs, T. H. (1970). Automatic measurement of grazing time by dairy cows on tropical grass and legume pastures. Tropical Grasslands 4, 237–244.Google Scholar
Stobbs, T. H. (1973). The effect of plant structure on the intake of tropical pastures. 1. Variation in the bite size of grazing cattle. Australian Journal of Agricultural Research 24, 809–819.CrossRefGoogle Scholar
Stobbs, T. H. (1975). The effect of plant structure on the intake of tropical pastures. 3. Influence of fertilizer nitrogen on the bite size harvested by Jersey cows grazing Setaria anceps cv. Kazungula. Australian Journal of Agricultural Research 26, 997–1007.CrossRefGoogle Scholar
Stobbs, T. H. & Cowper, J. L. (1972). Automatic measurement of the jaw movements of dairy cows during grazing and rumination. Tropical Grasslands 6, 107–112.Google Scholar
Yates, J. J., Edye, L. A., Davies, J. G. & Haydock, K. P. (1964). Animal production from a Sorghum almum pasture in south-east Queensland. Australian Journal of Experimental Agriculture and Animal Husbandry 4, 326–335.CrossRefGoogle Scholar