@article{10272/19777,
year = {2021},
month = {4},
url = {http://hdl.handle.net/10272/19777},
abstract = {Non-esterified fatty acids (NEFAs) and Insulin-like growth factor-I (IGF-1) concentrations are
modified after the induction of a "male effect". The present study examined the effect of the
introduction of males into a group of females that were previously isolated from males, during
different phases of the sexual cycle, to determine the changes to the NEFAs and IGF-1 concentrations.
Sixty-four does were divided into six groups. The males were introduced with the
females at different points after sponge removal. Introduction was carried out 48 h (n=10,
Group 48H), 72 h (n=12, Group 72H), 4 days (n=10, Group 4 D), 13 days (n=10, Group 13 D) or
18 days after sponge removal (n=10, Group 18 D), and a control group was implemented that
had no contact with males (n=12, Control Group). Plasma samples were taken every day to
determine daily progesterone (P4) and NEFAs concentrations, and every second day for IGF-1
determination. No effects from the experimental groups were observed on the mean NEFAs or
IGF-1 concentrations (p>.05). No differences between the time before male introduction and
after male introduction were observed on the NEFAs concentrations (p>.05) or IGF-1 concentrations
(p>.05). On the whole, only differences were observed in the NEFAs concentrations
between the follicular and the luteal phases (9.48 ± 0.38 vs 8.15 ± 0.15mg/dL for follicular and
luteal phases, respectively, p<.01). The results of the present experiment demonstrated that the
introduction of sexually active males at different moments of the oestrous cycle does not modify
the NEFAs or the IGF-1 concentrations.},
organization = {This study was funded by Grant [AGL2016-75848-R] from MINECO-AEI-FEDER (Spain).},
title = {The introduction of sexually active bucks at different moments of the oestrous cycle does not modify the NEFAs or the IGF-1 concentrations},
doi = {10.1080/1828051X.2021.1908182},
author = {Zarazaga Garcés, Luis Ángel and Gatica Jorquera, María Carolina and Guzmán Guerrero, José Luis},
}