Zobrazeno 1 - 10
of 67
pro vyhledávání: '"R. G. Gunn"'
Publikováno v:
Small Ruminant Research. 30:121-126
The effects on the lifetime reproductive performance of female sheep of two levels of nutrition before they were weaned or during their adult life were investigated using 499 Brecon Cheviot sheep, a breed which exhibits only small reproductive respon
Publikováno v:
Animal Science. 60:223-230
Over 3 years, a flock of Scottish Blackface ewes was managed so that one-third of the ewes received a high level of nutrition during the last 100 days of pregnancy (P), one-third received a high level of nutrition during the first 100 days of lactati
Publikováno v:
Animal Science. 54:249-258
The effects of feeding supplements in relation to sward height in the autumn on the reproductive performance of ewes grazing predominantly perennial ryegrass swards were studied in four experiments with three genotypes. Treatments in which either no
Publikováno v:
Animal Science. 54:243-248
The effects on reproductive performance offeeding supplements to ewes grazing predominantly perennial ryegrass swards before and during mating which started in mid November were examined with approximately 200 Scottish Blackface ewes in each of three
Publikováno v:
Animal Science. 53:257-260
The effects on herbage intake of changes of herbage mass associated with different stocking rates were studied in Greyface (Border Leicester × Scottish Blackface) ewes in the autumn. Intake was measured in 5-day periods in late September (PI), late
Publikováno v:
Animal Science. 52:157-163
The effects of high-low (HL) and low-high (LH) patterns of nutrition during the 5 weeks prior to a synchronized mating were studied on the reproductive performance of 115 Welsh Mountain and 114 Brecknock Cheviot ewes in a range of body condition at t
Publikováno v:
Animal Reproduction Science. 24:119-126
Relationships between circulating progesterone profiles and those of the luteotrophic hormones luteinising hormone (LH) and prolactin were examined at different times of day in two groups of 19 and 18 Greyface ewes in a high level of body condition (
Publikováno v:
Animal Science. 51:163-171
The effects on reproductive performance of different strategies of pasture management designed to conserve herbage in situ during the late growing season for use during the pre-mating and mating period were studied in three experiments over 3 years w
Publikováno v:
Grass and Forage Science. 46:437-439
Preliminary studies were carried out on the effect of stocking rate during late autumn on a continuously stocked Lolium perenne-dominated sward at an upland site in central Scotland. Measurements were made of L. perenne tiller population density on 2
Publikováno v:
Animal Science. 52:548-550
Continuously grazed rye grassl clover swards with surface heights of 8 to 10 cm at 5 weeks before a synchronized mating and 7·5 cm at mating were grazed by 151 Greyface ewes stocked at 12 per ha until mating. The effects of two stocking rates (eight