Zobrazeno 1 - 10
of 10
pro vyhledávání: '"John Nolan"'
Publikováno v:
Australian Journal of Agricultural Research. 58:1031
Protein metabolism in skin and muscle was studied in Merino wethers selected for high (F+, n = 10) or low (F–, n = 10) estimated breeding values for clean fleece weight, but with similar estimated breeding values for liveweight and fibre diameter,
Autor:
John Nolan, G. J. Lee
Publikováno v:
Australian Journal of Agricultural Research. 54:21
Samples of white clover and ryegrass were collected from 8 sites within an irrigated pasture (40 ha) to determine the extent of variation in the concentrations of individual alkanes (C25–C33) between sites, between samples (within site), and within
Publikováno v:
Australian Journal of Agricultural Research. 46:1121
Two studies were undertaken at Grafton, NSW, to determine the effects of supplementing a subtropical hay diet with a mixture of non-protein nitrogen (urea) and protein (protected casein), on the feed intake and growth of 20 steers of four genotypes (
Publikováno v:
Australian Journal of Agricultural Research. 45:1215
Two experiments were undertaken to study the effects of protozoa on sulfur and nitrogen availability and on fermentation and the composition of bacteria in the rumen of sheep. In Experiment 1, 12 faunated and 12 fauna-free sheep were offered a basal
Publikováno v:
Australian Journal of Agricultural Research. 30:333
The intake, digestibility and utilization of a low quality (0.8% nitrogen) sorghum hay was studied in Brahman cross, buffalo, banteng and Shorthorn steers. Comparisons of diet utilization were made after data were adjusted for differences in liveweig
Publikováno v:
Australian Journal of Agricultural Research. 36:729
A feeding experiment (47 days) was undertaken to evaluate the role of protein meal supplements for Hereford cows given a low quality subtropical grass hay and suckling calves (mean age 37 � 2.2 days). The rates of supplementation were 0, 5.25, 10.5
Autor:
John Nolan, D W Hennessy
Publikováno v:
Australian Journal of Agricultural Research. 39:1135
Ammonia kinetics in the rumen, and the rates of urea synthesis, excretion, and recycling to the rumen and post-ruminal digestive tract were estimated by means of tracer dilution methods in eight 12-monthold Hereford steers, all given free access to a
Publikováno v:
Australian Journal of Agricultural Research. 38:195
Twenty-seven Hereford steers (227�3 kg) were offered ad libitum low-quality grass pasture hay containing 4.3 g N/kg DM. These steers were offered one of three maize supplements (nil, 570 g/day crushed maize or 680 g/day whole maize) alone or with o
Publikováno v:
Australian Journal of Agricultural Research. 30:341
Urea metabolism was studied in Brahman cross, buffalo, banteng and Shorthorn cattle offered a low quality hay. Intravenous injections of [14C]urea and 51Cr-EDTA were used to determine the irreversible loss of urea from the plasma, the degradation of
Autor:
John Nolan, RW Hewetson
Publikováno v:
Australian Journal of Agricultural Research. 19:323
The development of a resistance by cattle to artificial infestations with Boophilus microplus ticks is reported and the sequence of development discussed. There was a regression of adult female ticks becoming replete with infestation (regression y =