Publications by authors named "O Gonzalez-Casquet"

Article Synopsis
  • Sexual activity in domestic goats can be enhanced by reducing the amount of daylight, prompting researchers to develop techniques for inducing and synchronizing estrus during less favorable seasons.
  • This study focused on Payoya goats, examining their hormonal changes following a treatment involving vaginal sponges with hormones and injections to stimulate estrus.
  • The results showed a conception rate of 62.5% and a kidding rate of 50%, with hormonal peaks being significant for understanding reproductive success or failure in these goats.
View Article and Find Full Text PDF

The aim of this study was to estimate genetic parameters for several female fertility criteria and to choose the most suitable selection index in Spanish Florida and Payoya goat breeds. In this study, we analyzed as fertility traits, the age at first kidding (AgFiKid), and the interval between the first and second kiddings (Int12Kid), between the second, third, and remaining kiddings (Int3toKid), and between all kiddings (IntAllKid) in 51,123 and 22,049 Florida and Payoya females, respectively. Genetic parameters were estimated by fitting animal models using restricted maximum likelihood (REML) methodology.

View Article and Find Full Text PDF

A total number of 1092 artificial inseminations (AIs) performed from March to May were documented over four consecutive years on 10 Payoya goat farms (36° N) and 19,392 AIs on 102 Rasa Aragonesa sheep farms (41° N) over 10 years. Mean, maximum, and minimum ambient temperatures, mean relative humidity, mean solar radiation, and total rainfall on each insemination day were recorded. Overall, fertility rates were 58 % in goats and 45 % in sheep.

View Article and Find Full Text PDF