Revista Veterinaria Zacatecas 2006 - Universidad Autónoma de ...
Revista Veterinaria Zacatecas 2006 - Universidad Autónoma de ...
Revista Veterinaria Zacatecas 2006 - Universidad Autónoma de ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
M C Romo-Villa et al<br />
feedback actions of estradiol but not<br />
affect timing of puberty in female sheep.<br />
Biol Reprod 2002; 66: 924-933.<br />
21. Foster DL. Puberty in the sheep. In:<br />
Knobil E, Neill JD. The Physiology of<br />
Reproduction, second ed. New York:<br />
Raven Press; 1994: 411-451.<br />
22. Dziuk P. Reproduction in the pig. In:<br />
Cupps PT. Reproduction in Domestic<br />
Animals. Fourth ed. San Diego:<br />
Aca<strong>de</strong>mic Press 1991: 471-490.<br />
23. West C, Foster DL, Evans NP, Robinson<br />
J, Padmanabhan V. Intra-follicular<br />
activin availability is altered in<br />
prenatally-androgenized lambs. Mol Cell<br />
Endocrinol 2001; 185: 51-59.<br />
24. Gore-Langton RE, Armstrong DT.<br />
Follicular steroidogenesis and its control.<br />
In: Knobil E, Neill JD. The Physiology<br />
of Reproduction, second ed. New York:<br />
Raven Press; 1994: 571-627.<br />
25. Elsaesser F, Ellendroff F, Pomerantz DK,<br />
Parvizi N, Smidt D. Plasma levels of<br />
luteinizing hormone, progesterone,<br />
testosterone and 5 -dihydro-testosterone<br />
in male and female pigs during sexual<br />
maturation. J Endocriol 1976; 68: 347-<br />
348.<br />
26. Parvizi N, Elsaesser F, Smidt D,<br />
Ellendorff F. Effects of intracerebral<br />
implantations, microinjection, and<br />
peripheral application of sexual steroids<br />
on plasma luteinizing hormone levels in<br />
the male miniature pigs. Endocrinology<br />
1977; 101: 1078-1087.<br />
27. An<strong>de</strong>rson LL, Fe<strong>de</strong>r J, Bohnker CR.<br />
Effect of growth hormone on growth in<br />
immature hypophysectomized pigs. J<br />
Endocrinol 1976; 68: 345-346.<br />
28. Morant M, Locatelli A, Torqui M,<br />
Chevalier M, Chambonm, Dufaure JP.<br />
Effects <strong>de</strong> l’hypophysectomie puis <strong>de</strong><br />
l’administration <strong>de</strong> la gonadotropine<br />
HCG sur le taux <strong>de</strong> testostérone et sur la<br />
structure <strong>de</strong> l’epididyme et <strong>de</strong>s glan<strong>de</strong>s<br />
accessories chez le verrat. Reprod Nutr<br />
Dev 1980; 20: 61-69.<br />
ABSTRACT<br />
Romo-Villa MC, Escobar-Medina FJ, <strong>de</strong> la Colina-Flores F, Zorrilla-<strong>de</strong> la Torre E. Effect of prenatal<br />
androgenization in swine on reproductive behavior. The effect of application of 1 g of testosterone to<br />
pregnant sows, on their female and male offspring was studied. Sows were injected at the 8 th and 11 th weeks<br />
of gestation. Control sows received no injection. All piglets were born with normal sized and shaped genitals.<br />
Androgenized female showed a <strong>de</strong>lay, although non-significant (P>0.05), in their onset of puberty, but were<br />
significantly (P