Zobrazeno 1 - 10
of 55
pro vyhledávání: '"K J Betteridge"'
Autor:
K. J. Betteridge
Publikováno v:
Equine Veterinary Journal. 21:92-100
Publikováno v:
Equine Veterinary Journal. 17:25-33
Summary Failure of embryo reinsertion experiments and observation of a high incidence of extended oestrous cycles following transcervical embryo recovery at Day 12.5 (ovulation = Day 0) prompted investigation of the effects of uterine lavage on cycle
Publikováno v:
Molecular Reproduction and Development. 60:202-207
The development rate of bovine chimeric embryos reconstituted at the 4-cell stage is relatively low. If chimerism is to be used as an approach in producing transgenic livestock, it is important to investigate whether this rate is affected by the sex
Publikováno v:
Equine Veterinary Journal. 21:40-42
Summary To see whether any indication could be found that male conceptuses might develop more rapidly than females in the horse, as they do in several other mammals, pre-attachment growth rates of female and male conceptuses were estimated from compo
Autor:
K. J. Betteridge
Publikováno v:
Equine Veterinary Journal. 25:122-124
Publikováno v:
Biology of Reproduction. 57:204-213
The development of bovine embryos reconstructed by nuclear transfer (NT) is poor compared to that of embryos produced by in vitro fertilization. One reason for this could be incomplete reprogramming of the transferred nucleus. Therefore, with a view
Autor:
Mc. Lavoir, W A King, N. Rumph, Jianchi Ding, André Moens, K J Betteridge, Y Plante, Walter H. Johnson
Publikováno v:
Biology of Reproduction. 56:194-199
The pluripotency of embryonic germ cells in the mouse suggests that mitotic bovine fetal germ cells might also be a source of pluripotent cells. To investigate the pluripotency of bovine oogonia, the development in vitro of bovine embryos reconstruct
Publikováno v:
Journal of reproduction and fertility. Supplement. (56)
Equine blastocyst fluid has a lower [Na+], a higher [K+] and a lower osmolality than does normal blood serum. Based on the assumptions that the sodium pump is primarily responsible for fluid accumulation and that ions transported actively into the bl
Publikováno v:
Biology of Reproduction. 44:102-107
The ability of the bovine oviduct to maintain the motility and fertilizing capacity of bovine sperm was investigated by incubating frozen-thawed sperm with endosalpingeal epithelial cells cultured on either tissue culture plastic (nonpolarizing) or M
Publikováno v:
Molecular Reproduction and Development. 27:295-304
Bovine inner cell masses (ICMs) were isolated by immunosurgery at day 8 or 10, or by dissection at day 14, and combined with day-5.5 morulae. Aggregation was obtained between 89%, 62%, and 0% of the day-5:day-8, day-5:day-10, day-5:day-14 composites,