Journal of Agricultural Science

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A revised model for the estimation of protein degradability in the rumen
Journal of Agricultural Science - Tập 96 Số 1 - Trang 251-252 - 1981
I. McDonald
Estimates of the degradability of protein in the rumen are essential for the application of new systems which have been suggested for the evaluation of the protein requirements of ruminants (Agricultural Research Council, 1980). The effective percentage degradability (P) of protein supplements in the rumen is dependent not only on the course of degradation of the...... hiện toàn bộ
A comparison of feeding growing pigs once or twice daily
Journal of Agricultural Science - Tập 60 Số 3 - Trang 389-391 - 1963
R. Braude, M. Jill Townsend, G. Harrington, J. G. Rowell
1. A co-ordinated trial has been carried out at 17 centres to compare the effects on performance and carcass quality of feeding growing pigs once or twice daily.2. No significant differences were found between growth rate, efficiency of food conversion or length of pigs on the two treatments.3. Killing out percentage was on average 0·92% worse for the pigs...... hiện toàn bộ
Utilization of fish protein hydrolysates in milk substitutes for lambs
Journal of Agricultural Science - Tập 93 Số 1 - Trang 37-46 - 1979
H. S. Soliman, E. R. Ørskov, Ian Mackie
SUMMARYMale and female (Suffolk × (Finnish Landraee × Dorset Horn)) lambs were used in three experiments to examine the replacement of milk by undried and dried fish protein hydrolysates (FPH), a mixture of lard and coconut fat, and partially hydrolysed starch (Protamyl 110). The animals received the experimental diets from 1 week of age in Expts 1 and 2, and from ...... hiện toàn bộ
Effects of different fat sources, technological forms and characteristics of the basal diet on milk fatty acid profile in lactating dairy cows – a meta-analysis
Journal of Agricultural Science - Tập 150 Số 4 - Trang 495-517 - 2012
A. STERK, A.M. van Vuuren, W.H. Hendriks, J. Dijkstra
SUMMARYA meta-analysis was conducted to study milk fatty acid (FA) profile in dairy cows in response to changes in dietary nutrient composition in relation to supplementation of fat sources, their technological form, addition of fish oil and main forage type in the basal diet. Data comprised 151 treatment means from 50 experiments, which were included in the databa...... hiện toàn bộ
The effect of soil acidity on potentially mobile phosphorus in a grassland soil
Journal of Agricultural Science - Tập 139 Số 1 - Trang 27-36 - 2002
R. W. McDowell, Philip C. Brookes, N. Mahieu, P. R. Poulton, A. E. Johnston, Andrew N. Sharpley
This study compared phosphorus (P) speciation and the relationship between bicarbonate extractable (Olsen) P and 0.01 M CaCl2 extractable P (a measure of potentially mobile P) in soils from plots of the Park Grass experiment started in 1856 at IACR-Rothamsted, UK and with and without nitrogen as (NH4)2SO... hiện toàn bộ
Cold-hardiness of olive (Olea europaeaL.) cultivars in cold-acclimated and non-acclimated stages: seasonal alteration of antioxidative enzymes and dehydrin-like proteins
Journal of Agricultural Science - Tập 147 Số 1 - Trang 51-61 - 2009
Asuman Cansev, Hatice Gülen, A. Eri̇ş
SUMMARYSeasonal patterns of antioxidative enzymes and proteins and their relations to cold-hardiness of nine olive (Olea europaeaL.) cultivars (Ascolona, Domat, Gemlik, Hojoblanca, Lecquest, Manzanilla, Meski, Samanli and Uslu) are documented in the current study. Fully expanded, uniformly sized leaves from 2-year-old shoots of the cultiv...... hiện toàn bộ
Diallel analysis of maize lines with contrasting responses to applied nitrogen
Journal of Agricultural Science - Tập 142 Số 5 - Trang 535-541 - 2004
Leonardo Oliveira Médici, Maurício Ballesteiro Pereira, Peter J. Lea, Ricardo Antunes Azevedo
Six S5 lines of maize, previously identified as having contrasting responses to nitrogen (N) supply, were used to carry out a complete series of diallel crosses. The resulting 15 hybrids were grown in a field at two N levels. The general combining ability (GCA) and specific combining ability (SCA) were estimated using the method 4, model I analysis of Griffing for grai...... hiện toàn bộ
Nitrogen metabolism in the ovine stomach: 3. Urea in the abomasal secretions
Journal of Agricultural Science - Tập 83 Số 2 - Trang 237-247 - 1974
CJF Harrop, A. T. Phillipson
SUMMARYThe effects of various stimuli on the secretion of urea and ammonia in gastric juice were examined in sheep with innervated pouches in the fundic and pyloric regions of the abomasum.Histamine, pentagastrin and feeding increased the rate of secretion and acidity of fundic juice, but had little or no effect on the concentration of urea and amm...... hiện toàn bộ
Observations on the effects of temperature and distance to water on the behaviour of Merino and Border Leicester sheep
Journal of Agricultural Science - Tập 82 Số 3 - Trang 383-390 - 1974
G. T. Daws, Victor R. Squires
SUMMARYThe effects of ambient temperature on the daily behaviour patterns and water consumption of Border Leicester and Merino wethers were examined in an experiment where food was supplied ad libitum at points ranging from 2·4 to 5·6 km from water. The data were collected during a 12-week period when daily maximum temperatures ranged fro...... hiện toàn bộ
Voluntary intake and digestion of gorse (Ulex europaeus) by goats and sheep
Journal of Agricultural Science - Tập 111 Số 1 - Trang 107-114 - 1988
J.C. Howe, T. N. Barry, A.I. Popay
SummaryGorse (Ulex europaeus) was harvested in late spring, summer, autumn and winter and fed to six goats kept individually in metabolism cages for 21-day periods. The same gorse was also fed to sheep during the first two periods, but not in autumn and winter, as the hardness and sharpness of the needles caused total rejection by the she...... hiện toàn bộ
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