Výsledky vyhledávání

The phosphorus requirements of growing cattle consuming forage diets

Autor: D. B. Coates, R. E. Hendricksen, G. Bortolussi, J. H. Ternouth, R. W. McLean

Publikováno v: The Journal of Agricultural Science. 126:503-510

SUMMARYThe results of six experiments on growing cattle weighing 140–480 kg, and with liveweight gains of —0·46 to 1·11 kg/day, were reanalysed to provide estimates of their phosphorus (P) requirements. The 158 data sets were from individually

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d975fe8107e7c7da5351c3032f4371b
https://doi.org/10.1017/s0021859600075596

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An analysis of cattle live-weight changes on tropical grass pasture during the dry and early wet seasons in northern australia: 1. The nature of weight changes

Autor: R. A. Dance, W. H. Winter, R. W. McLean, D. A. Little, R. L. McCown

Publikováno v: The Journal of Agricultural Science. 101:17-24

SUMMARYStudies were conducted to elucidate the nature and cause of the drastic losses of live weight of cattle grazing buffel grass pastures after first rains at the end of the dry season in northern Australia. This paper examines trends in weight an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2662642036e6e259e362c06caeee9767
https://doi.org/10.1017/s0021859600036315

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Estimation of the body chemical composition of live cattle varying widely in fat content

Autor: D. A. Little, R. W. McLean

Publikováno v: The Journal of Agricultural Science. 96:213-220

SUMMARYFollowing the measurement of tritiated water (TOH) spaces, 31 cattle were slaughtered and chemically analysed in this study. They included several breeds, both females and castrate males, and were of varied nutritional history. Their body-fat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::347ec70416306fa5396a471539fca881
https://doi.org/10.1017/s0021859600032019

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Prediction of the phosphorus content of herbage consumed by grazing cattle

Autor: W. H. Winter, R. W. McLean, D. A. Little

Publikováno v: The Journal of Agricultural Science. 88:533-538

SUMMARYThe determination of feed phosphorus content using oesophageally fistulated cattle is reported in this paper, from an experiment in which salivary phosphorus was labelled with 32P.An intravenous infusion of Na232PO4 to cattle produced an immed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01e38374c0c51ab098e19e0747fb4fb2
https://doi.org/10.1017/s0021859600037217

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An analysis of cattle live-weight changes on tropical grass pasture during the dry and early wet seasons in northern Australia: 2. Relations to trends in the pasture, diet and grazing behaviour

Autor: R. W. McLean, R. L. McCown

Publikováno v: The Journal of Agricultural Science. 101:25-31

SUMMARYCattle grazing buffel grass pastures during the dry season at Katherine lose large amounts of live weight during a short period following first rain. In Part 1 we showed that these losses were due mainly to reduction in gut contents. Part 2 ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ea165a17a80dea22d8599c0d0e02ad3
https://doi.org/10.1017/s0021859600036327

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Measurement of the phosphorus content of herbage selected by grazing cattle: influence of route of isotope administration, animal live weight and dose size on specific activity of saliva

Autor: R. W. McLean, D. A. Little

Publikováno v: The Journal of Agricultural Science. 93:757-760

In an earlier paper (Little, McLean & Winter, 1977) we reported a technique for the measurement of the phosphorus content of the diet consumed bygrazing cattle, which recently has been used successfully to measure the dietary intake of phosphorus by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed6f474b24fa866ebbcb234cbf98b0be
https://doi.org/10.1017/s0021859600039186

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THE VISUAL ESTIMATION OF PASTURE AVAILABILITY USING STANDARD PASTURE CORES

Autor: B. A. Hamilton, K. J. Hutchinson, R. W. McLean

Publikováno v: Grass and Forage Science. 27:29-34

A coring technique (6), that may be used for estimating the mean amount of herbage on closely grazed pastures, has been adapted to include visual scoring. Two methods are described, both of which use sets of pasture cores from the sward as reference

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ae0e7f64667a00d60fffea021387c42
https://doi.org/10.1111/j.1365-2494.1972.tb00682.x

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The influence of superphosphate on the legume content of the diet selected by cattle grazing Stylosanthes-native grass pastures

Autor: JJ Mott, W. H. Winter, D. A. Little, R. W. McLean

Publikováno v: The Journal of Agricultural Science. 96:247-249

The addition of superphosphate increases the legume content of grass-legume pastures and the growth rate of beef cattle (Shaw, 1978). It has generally been assumed that the increase in beef production following the application of superphosphate is re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d79fffa2b3a13b32b4ecf6c5ea246a70
https://doi.org/10.1017/s002185960003207x

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