Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. W. Hennessy"'
Autor:
J. F. Wilkins, D. W. Hennessy
Publikováno v:
Asian-Australasian Journal of Animal Sciences. 18:1735-1740
Forty-two single-bearing and 42 twin-bearing mature Angus×Hereford cows were allocated, seven per cell to 3 replications of 2 stocking rates (3.2 cows/ha; medium stocking rate (MSR), and 3.8 cows/ha; high stocking rate (HSR)) to graze summer-active
Publikováno v:
The Journal of Agricultural Science. 135:297-304
The study examined the reliability of predicting faeces output of cattle from chromium oxide (Cr2O3) released from a device (CRD) inserted in the rumen. Sixteen steers were selected from four genotypes and were offered a diet of low quality pasture h
Publikováno v:
The Journal of Agricultural Science. 135:35-45
Thirty steers were used in two pen experiments (Expts 1 and 2), and 27 of these in a third (Expt 3), to quantify their responses of hay intake, rumen ammonia nitrogen (RAN) concentrations, and liveweight to inputs of rumen soluble nitrogen (urea) and
Autor:
D. W. Hennessy, S. G. Morris
Publikováno v:
The Journal of Agricultural Science. 133:97-102
The relationship between liveweight at mating and calving probability was examined in cattle grazing subtropical pastures in a 4 year study. The aim was to establish whether breed type, lactation, protein meal supplements, and/or pasture quality affe
Autor:
DJ McLennan, Ross Darnell, S. G. Morris, D. W. Hennessy, P. J. Williamson, Robert J. Farquharson
Publikováno v:
Animal Science. 66:93-104
Subtropical grasslands are low in organic matter digestibility (OMD) (0·60) and nitrogen (N) (15 g/kg) for much of the year and this limits cattle production which is characterized by low calving rates and low weaning weights. Production has been ba
Publikováno v:
Animal Production Science. 49:468
Cattle sired by Piedmontese or Wagyu bulls were bred and grown within pasture-based nutritional systems followed by feedlot finishing. Effects of low (mean 28.6 kg, n = 120) and high (38.8 kg, n = 120) birthweight followed by slow (mean 554 g/day, n
Publikováno v:
Australian Journal of Experimental Agriculture. 46:245
The aim of this study was to quantify the effects of nutrition during pregnancy and lactation on birth weight and growth to weaning of Piedmontese and Wagyu sired calves. This research was also conducted to provide animals for long-term studies on th
Publikováno v:
Australian Journal of Experimental Agriculture. 46:951
Two groups of Wagyu × Hereford steers grown slowly (slow preweaning group, n = 14, mean average daily gain = 631 g/day) or rapidly (rapid preweaning group, n = 15, mean average daily gain = 979 g/day) from birth to weaning were backgrounded on impro
Autor:
H Hearnshaw, D. W. Hennessy, John Mitchell Thompson, Paul L. Greenwood, Stephen Morris, L. M. Cafe
Publikováno v:
Australian Journal of Experimental Agriculture. 46:257
Cattle sired by Piedmontese or Wagyu bulls were bred and grown within pasture-based nutritional systems followed by feedlot finishing. Effects of low (mean 28.6 kg, n = 120) and high (38.8 kg, n = 120) birth weight followed by slow (mean 554 g/day, n
Autor:
D. W. Hennessy, P. F. Arthur
Publikováno v:
Australian Journal of Experimental Agriculture. 44:483
Records on 78 steers and heifers were used to determine relationships among different measures of growth, feed efficiency and carcass traits, and to evaluate the effects of 2 preweaning growth rates on growth and efficiency in a feedlot. The preweani