Zobrazeno 1 - 10
of 31
pro vyhledávání: '"S. R. McMillen"'
Publikováno v:
Physiology & Behavior. 73:211-216
The role of cholecystokinin (CCK) in the expression of seasonal variation in feed intake and feeding activity in ruminants was investigated by active immunisation of castrated male red deer (Cervus elaphus). In April, animals of two groups (five anim
Publikováno v:
Domestic Animal Endocrinology. 16:1-9
It was postulated that frequent pulses of cortisol such as might be induced by a repeated or chronic stressor, could induce immune suppression and that the effect would be greater than in animals subjected to less frequent increases. Four groups of n
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:
Small Ruminant Research. 29:317-324
The relationships between dose of propylthiouracil (PTU), circulating plasma thyroid hormone concentrations and 5′-monodeiodinase enzyme activity were investigated to determine the dose and duration of PTU treatment required to suppress plasma thyr
Publikováno v:
Animal Science. 66:397-402
The relationship between weaning stress-induced changes in stress hormone profiles and immune function was investigated in groups of 10 lambs immunized against adrenocorticotrophic hormone (ACTH; treatment A) or fi-endorphin (treatment B) to reduce t
Autor:
David A. Elston, S. R. McMillen, Stewart M. Rhind, José-Alfonso Abecia, S. Ahmadi, Pete Goddard
Publikováno v:
Animal Science. 63:229-234
Jugular and ovarian venous profiles of progesterone and endometrial progesterone concentrations were measured in pregnant and non-pregnant ewes. Mean jugular concentrations were not significantly different (3·12v.2·39 μg/l). The incidence of proge
Autor:
Stewart M. Rhind, S. R. McMillen
Publikováno v:
Animal Science. 62:513-520
The effect of long-term treatment of goats with methylthiouracil on the timing, amount and quality of secondary fibre (cashmere) growth and timing of cashmere moult in goats was investigated. From early June, groups of 10 Icelandic × Scottish feral
Autor:
Iain A. Wright, S. R. McMillen, P.J Goddard, L.Pinto Andrade, Thomas A. Bramley, Stewart M. Rhind
Publikováno v:
Animal Reproduction Science. 40:177-192
An experiment was conducted to test the hypothesis that postpartum anoestrus in beef cows is prolonged in cows in low body condition (BC) because they have a reduced LH pulse frequency compared with cows in high BC. Thirty-six multiparous Blue-Grey (
Publikováno v:
Animal Science. 61:57-62
Two groups of eives were fed to provide 1·5 × (high, H; no. = 13) or 0·5 × (low, L; no. = 12) energy requirements for maintenance of live weight from 12 days before a synchronized mating in November until slaughter at 14 days after mating and the
Autor:
S. R. McMillen, Stewart M. Rhind
Publikováno v:
Small Ruminant Research. 16:69-76
In a 2 × 2 factorial experiment, patterns of primary and secondary hair follicle activity, fibre growth and moulting were measured throughout the year in goats of two genotypes (Icelandic x Scottish Feral (IF) and Siberian (S)) offered rations conta