Zobrazeno 1 - 10
of 48
pro vyhledávání: '"R. J., Mapletoft"'
Autor:
M. G., Colazo1, R. J., Mapletoft2
Publikováno v:
Ciencia Veterinaria. 2022, Vol. 24 Issue 2, p221-240. 20p.
Autor:
J. Sola, V. Alberio, J. Carvajal, A. Tribulo, R. Waidelich, J. M. Oviedo, D. Salamone, R. J. Mapletoft, G. A. Bó
Publikováno v:
Reproduction, Fertility and Development. 35:228-229
Autor:
R J, Mapletoft
Publikováno v:
Revue scientifique et technique (International Office of Epizootics). 4(4)
Publikováno v:
Ciencia Veterinaria. 2007, Issue 9, p4-19. 16p. 1 Chart, 1 Graph.
Publikováno v:
Canadian Journal of Animal Science. 75:225-230
Thirty-three cross-bred beef heifer calves were implanted with zeranol (36 mg) at birth, 100 and 300 d of age and 40 heifer calves remained as untreated controls. Heifers were examined rectally by diagnostic ultrasonography every 14 d from 10 to 14 m
Publikováno v:
Reproduction, Fertility and Development. 28:256
In vitro embryo production (IVP) is an important tool to enhance genetic gain in cattle. However, oocyte quality is a limiting factor for the success of IVP programs in high-producing donors. A series of studies using protocols for follicular wave sy
Publikováno v:
Canadian Journal of Animal Science. 74:73-76
Live weight, average daily gain (ADG) and reproductive performance were compared between heifers implanted with zeranol at birth, 100 and 200 d of age (n = 54) and those not implanted (n = 50). Zeranol implantation resulted in increased (P 0.05) calf
Autor:
R J, Mapletoft, J F, Hasler
Publikováno v:
Revue scientifique et technique (International Office of Epizootics). 24(1)
Over a period of approximately thirty years, commercial bovine embryo transfer has become a large international business. The technology is well established, and more than 500,000 embryos are produced annually from superovulated cows world wide. Sinc