Zobrazeno 1 - 9
of 9
pro vyhledávání: '"C. L. Gasser"'
Publikováno v:
Journal of Animal Science. 85:937-943
We tested the hypothesis that luteal function and fertility would be reduced in cattle induced to ovulate prematurely compared with those ovulating spontaneously. Estrus was synchronized in 56 beef cows (24 that were nonlactating and 32 that were nur
Publikováno v:
Journal of Animal Science. 84:3118-3122
Precocious puberty ( HC; CH > CC). Body weights in HC and CH treatments differed from a mean age of 169 through 238 d, after which BW did not differ between these treatments. The ADG over the entire experimental period was greatest for the HH treatme
Publikováno v:
Journal of Animal Science. 84:2050-2056
Precocious puberty ( or = 1 LH pulse/h) earlier (P < 0.05) than in the OVXE-C treatment (307 +/- 30 and 420 +/- 21 d of age, respectively). It is concluded that advancing the reduction of estradiol negative feedback on secretion of LH is the mechanis
Autor:
Christopher R Burke, C L Gasser, M.L. Mussard, E J Behlke, Michael L. Day, J. E. Kinder, D. E. Grum
Publikováno v:
Journal of Animal Science. 84:2042-2049
Precocious puberty can be induced in a majority of heifers weaned early and fed a high-concentrate diet. The objective of this experiment was to determine whether induction of precocious puberty is associated with an acceleration of ovarian maturatio
Autor:
C L, Gasser
Publikováno v:
Journal of animal science. 91(3)
Many important changes occur throughout reproductive development in beef heifers, including during the prenatal, early postnatal, and peripubertal periods. Wave-like patterns of follicular development have been observed in heifer calves as early as 2
Publikováno v:
Journal of animal science. 85(4)
We tested the hypothesis that luteal function and fertility would be reduced in cattle induced to ovulate prematurely compared with those ovulating spontaneously. Estrus was synchronized in 56 beef cows (24 that were nonlactating and 32 that were nur
Publikováno v:
Journal of animal science. 84(8)
In beef heifers weaned between 3 and 4 mo of age and fed a high-concentrate diet, approximately 50% reach puberty before 300 d of age (precocious puberty). The objectives of this experiment were 1) to determine whether precocious puberty could be ind
Publikováno v:
Journal of animal science. 84(8)
Precocious puberty can be induced in a majority of heifers weaned early and fed a high-concentrate diet. The objective of this experiment was to determine whether induction of precocious puberty is associated with an acceleration of ovarian maturatio
Publikováno v:
Journal of animal science. 84(8)
Precocious puberty (300 d of age) can be induced in beef heifers by early weaning and feeding a high-concentrate diet. The objective of this experiment was to determine whether precocious puberty occurs as a result of a hastened reduction of estradio