An automated method for the evaluation of ram libido in real mating conditions
| Autor: | François Bocquier, Moutaz Alhamada, Nathalie Debus |
|---|---|
| Přispěvatelé: | Systèmes d'élevage méditerranéens et tropicaux (UMR SELMET), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Male
libido [SDV]Life Sciences [q-bio] Breeding Biology SF1-1100 ram Sexual Behavior Animal Animal science Animals 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Animal Husbandry Mating electronic recording device Sheep Domestic Estrous cycle Libido 05 social sciences 0402 animal and dairy science sexual behaviour 04 agricultural and veterinary sciences Repeatability 040201 dairy & animal science Animal culture Animal Science and Zoology Flock season Automated method |
| Zdroj: | animal animal, Cambridge University Press (CUP), 2017, 3, 9 p. ⟨10.1017/S1751731117000611⟩ animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2017, 3, 9 p. ⟨10.1017/S1751731117000611⟩ Animal, Vol 11, Iss 11, Pp 2036-2044 (2017) Animal Animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2017, 3, 9 p. ⟨10.1017/S1751731117000611⟩ |
| ISSN: | 1751-7311 1751-732X |
| DOI: | 10.1017/S1751731117000611⟩ |
| Popis: | We investigated if sexual behaviour of rams can be assessed with an electronic Alpha-Detector (AD) which automatically records mounts of mating rams. To evaluate the rams' libido (i.e. all sexual activities), we used six intact and six vasectomised rams in pen tests in three different seasons (late spring, autumn and early spring). The pen tests consisted of 30-min visual observations of each ram placed in a group of six Merino ewes (three ewes in oestrus and three ewes not in oestrus). In the pen tests, sexual behaviour was recorded and divided into two categories: pre-copulatory and copulatory. For validation purposes, during the pen tests the 12 rams were equipped with the AD and the number of times the 18 oestrous ewes were mounted were counted over a period of 3 days. Of the 1191 mounts visually identified in the six 30-min sessions, 1026 were recorded automatically by the AD (i.e. 94%). The paddock test is an automated method consisting of the same rams wearing an AD and placed in a flock of ~250 Merino ewes on two occasions (late spring (spring 1) and early spring of the following year (spring 2)), their copulatory activities were automatically recorded over a 5-day period. The results of the pen tests in the three seasons revealed no difference between the two types of rams (breeding v. detecting rams). Based on live observations high correlations (r=+0.81, P |
| Databáze: | OpenAIRE |
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