Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Winder, A."'
Autor:
Kojima, F.N., Bergfeld, E.G.M., Wehrman, M.E., Cupp, A.S., Fike, K.E., Mariscal-Aguayo, D.V., Sanchez-Torres, T., Garcia-Winder, M., Clopton, D.T., Roberts, A.J., Kinder, J.E.
Publikováno v:
In Animal Reproduction Science 2003 77(3):187-211
Publikováno v:
In Animal Reproduction Science 2002 74(3):111-119
Publikováno v:
In Animal Reproduction Science 2002 73(3):159-168
Autor:
D.V. Mariscal-Aguayo, M. Garcia-Winder, J. E. Kinder, Andrea S. Cupp, E. G. M. Bergfeld, T. Sanchez-Torres, M. E. Wehrman, F. N. Kojima, Debra T. Clopton, K.E. Fike, Andrew J. Roberts
Publikováno v:
Animal Reproduction Science. 77:187-211
The objectives of the present study were to determine how varying frequency of LH pulses as controlled by varying treatments with progesterone (P4) in cattle would affect: (1) concentration of steroid hormones and activity of insulin-like growth fact
Publikováno v:
Animal Reproduction Science. 73:159-168
In the dual purpose milk/beef production system practised in Mexico, the cows are milked once a day in the presence of the calf and then the calf suckles for the next 1-8 h. It was hypothesised that the imposition of milking and suckling in close suc
Autor:
F. N. Kojima, Roger J. Kittok, M. E. Wehrman, T. Sanchez, E. G. M. Bergfeld, K. E. Peters, M. Garcia-Winder, J. E. Kinder, V. Mariscal, Andrea S. Cupp
Publikováno v:
Animal Reproduction Science. 37:257-265
The present study was designed to test whether progesterone from exogenous and endogenous sources modulates the frequency of luteinizing hormone (LH) pulses in a differential fashion. Our working hypotheses were: (1) the frequency of secretion of LH
Autor:
M. García Winder, A. Coy
Publikováno v:
Animal Reproduction Science. 24:159-164
To study the effects of duration of treatment with norgestomet on life span of the corpus luteum induced by hCG, 14 prepubertal Bos taurus × Bos indicus heifers with an age of 10.3 ± 2.9 months (mean ± SEM), weighing 183.8 ± 29 kg, and in moderat
Publikováno v:
Animal reproduction science. 74(3-4)
It is hypothesized that the combined effects of suckling and milking in the dual purpose cows is one of the main suppressors of reproductive efficiency in this production system. The experiment described here examined whether managing the interval be
Autor:
C.M. Garcia-Bojalil, Germán Mendoza, J.L. Cordero, José A. Martínez-García, M.T. Sánchez-Torres, M. Garcia-Winder
Publikováno v:
Animal reproduction science. 98(3-4)
An experiment was conducted to ascertain if follicles could reach ovulatory size after the largest follicle (dominant) has been removed at different times during a progestin treatment in anestrous ewes, and secondly to determine if these new follicle
Publikováno v:
Animal reproduction science. 54(2)
The life span of the corpus luteum (CL) may depend on follicular development. To provide evidence relating to this hypothesis, each of 32 ewes was randomly assigned to have its CL removed on day 2, 3, 4 or 10 after oestrus. Twenty ewes were treated w