RT Journal Article
T1 Photoperiod-Treatment in Mediterranean Bucks Can Improve the Reproductive Performance of the Male Effect Depending on the Extent of Their Seasonality
A1 Zarazaga Garcés, Luis Ángel
A1 Gatica Jorquera, María Carolina
A1 Delgado Pertiñez, Manuel
A1 Hernández, Horacio
A1 Guzmán Guerrero, José Luis
A1 Delgadillo, J. A.
AB This study examines the effectiveness of the photoperiod treatment (extra light for 88 days)to render the bucks sexually active during the seasonal anoestrous in order to induce a male effect,depending on the reproductive seasonality of the breed of the bucks used. In April, 57 anoestrousBlanca Andaluza does were distributed into four groups with three males each: 13 were exposedto control Murciano–Granadina bucks (lower seasonality); 15 were exposed to photostimulatedMurciano–Granadina bucks; 14 were exposed to control Blanca Andaluza bucks (higher seasonality),and 15 were exposed to photostimulated Blanca Andaluza bucks. After male introduction, the sexualbehaviour of the bucks was assessed, and harness marks recorded doe oestrous behaviour. Ovulationwas confirmed from plasma progesterone, and the ovulation rate was assessed by transrectal ultrasonography.Fecundity, fertility, prolificacy and productivity were also determined. All of the doesin all of the groups showed ovulation. Interaction between both sources of variation was observed:the percentage of females showing oestrous (p < 0.01) and productivity (p < 0.05) was the lowest inthe Blanca Andaluza control group (50% and 0.36 ± 0.17 goat kids born/female, respectively). Inconclusion, photoperiod-treated bucks efficiently induce a male effect, but photostimulation could bemore necessary for breeds with deep seasonality.
PB MDPI
SN 2076-2615
YR 2021
FD 2021-02
LK http://hdl.handle.net/10272/19383
UL http://hdl.handle.net/10272/19383
LA eng
NO Zarazaga, L. A., Gatica Jorquera, M. C., Delgado Pertíñez, M., Hernández, H., Guzmán Guerrero, J. L., & Delgadillo, J. A. (2021). Photoperiod-Treatment in Mediterranean Bucks Can Improve the Reproductive Performance of the Male Effect Depending on the Extent of Their Seasonality. Animals, 11(2), 400. DOI: https://doi.org/10.3390/ani11020400
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026