The reproductive response to the male effect of 7- or 10-month-old female goats is improved when photostimulated males are used
| Autor: | Luis A. Zarazaga, M.C. Gatica, J.L. Guzmán, Matthieu Keller, Horacio Hernández, J.A. Delgadillo, Philippe Chemineau |
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| Přispěvatelé: | Universidad de Huelva, Universidad Arturo Prat (UNAP), Universidad Autónoma Agraria Antonio Narro (UAAAN), Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut National de la Recherche Agronomique (INRA)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS), Grant AGL2016-75848-R from MINECO-AEI-FEDER (Spain), Zarazaga, Luis Ángel, Institut National de la Recherche Agronomique (INRA)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Universidad Arturo Prat, Universidad Autónoma Agraria Antonio Narro, Centre National de la Recherche Scientifique (CNRS)-Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Institut National de la Recherche Agronomique (INRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
puberty fecundity fertility male effect productivity reproduction animale photostimulation Sexual Behavior Animal 0302 clinical medicine Progesterone Productivity media_common Animal biology photoperiodism 030219 obstetrics & reproductive medicine Goats Reproduction 04 agricultural and veterinary sciences Fecundity Animal culture [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies Female Seasons Research Article Ovulation chèvre media_common.quotation_subject Photoperiod Fertility Reproduction sexuée hormone sexuelle Biology Male effect Body weight SF1-1100 [SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction 03 medical and health sciences Sexually active échographie transrectale Animal science Estrus Biologie animale [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology Sexual reproduction Animals Estrous cycle [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health Puberty Body Weight 0402 animal and dairy science 040201 dairy & animal science Animal Science and Zoology Plasma progesterone Physiology and Functional Biology |
| Zdroj: | Animal animal animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2019, 13 (8), pp.1658-1665. ⟨10.1017/S1751731118003397⟩ Animal 8 (13), 1658-1665. (2019) Animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2019, 13 (8), pp.1658-1665. ⟨10.1017/S1751731118003397⟩ animal, Cambridge University Press (CUP), 2019, 13 (8), pp.1658-1665. ⟨10.1017/S1751731118003397⟩ Arias Montano. Repositorio Institucional de la Universidad de Huelva instname Animal, Vol 13, Iss 8, Pp 1658-1665 (2019) |
| ISSN: | 1751-732X 1751-7311 |
| DOI: | 10.1017/S1751731118003397⟩ |
| Popis: | The exposure of adult, female, Mediterranean goats during anoestrus to males with induced sexual activity via photostimulation, induces a very high percentage of ovulations. The present work examines the ability of photostimulated bucks to improve the male effect-induced reproductive response of young does over that induced by non-stimulated bucks. A 2×2 factorial experiment was designed, consisting of doe age and buck photoperiod treatments. During seasonal anoestrus, 41 does aged 7 (n=19) or 10 (n=22) months were subjected to the male effect on 10 April; half of each group was exposed to males rendered sexually active by prior exposure to 3 months of long days (16 h of light/day) from 31 October (PHOTO bucks), and half to males maintained under the natural photoperiod (CONTROL bucks). Oestrous activity was recorded daily by direct visual observation of the marks left by male-worn marking harnesses over the 32 days following the bringing of the sexes together (introduction). Doe body weight and body condition were determined weekly. Ovulation was detected by measuring plasma progesterone concentrations twice per week over the 3 weeks after introduction. The ovulation rate was assessed by transrectal ultrasonography. Fecundity, fertility, prolificacy and productivity were also determined. The interaction doe age × buck photoperiod treatment had no effect on any outcome. The percentage of females showing ovulation or oestrus was higher in the does exposed to PHOTO bucks (85% v. 43% for those exposed to CONTROL bucks) they also showed higher fertility (75% v. 43%) and productivity (1.05±0.17 v. 0.57±0.16 kids born per doe serviced) (all P values at least P This study was funded by Grant AGL2016-75848-R from MINECO-AEI-FEDER (Spain). Thanks are also owed to CEICamBio for their support.This study was funded by Grant AGL2016-75848-R from MINECO-AEI-FEDER (Spain). Thanks are also owed to CEI CamBio for their support. |
| Databáze: | OpenAIRE |
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