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Registros recuperados: 10
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Artificial long days prolongs pospartum anovulation in Creole goats from subtropical Mexico kidding in autumn Inra
Hernandez, H.; Mejia, A.; Flores, J.A.; Lopez, J.C.; Fernandez, I.G.; Poindron, P.; Delgadillo, J.A..
Tipo: Conference Paper Palavras-chave: PHOTOPERIODE; ANOVULATION; OVULATION; JOUR LONG POSTPARTUM.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008e040c608&uri=/notices/prodinra1/2008/03/
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Comparaison du comportement maternel en bergerie à la parturition chez des brebis primipares ou multipares de race Romanov, Préalpes du Sud et Ile-de-France Inra
Poindron, P.; Raksanyi, I.; Orgeur, P.; Le Neindre, P..
Le comportement maternel au cours des 3 premières heures de la vie de l’agneau a été comparé chez des brebis Ile-de-France (IF), Préalpes du Sud (PA) et Romanov (R). L’étude a porté à la fois sur des femelles primipares et multipares dont la reproduction était synchronisée par l’utilisation d’éponges vaginales imprégnées de FGA suivies d’une injection de PMSG, et dont la parturition était induite par une injection de dexaméthasone (IF : 16 mg à J 144 de gestation ; PA : 12 mg à J 143 ; R : 16 mg à J 140). Chez les brebis multipares, aucune différence très marquée n’a été observée entre les 3 races, à l’exception du léchage de l’agneau, qui a débuté plus tardivement chez les IF que chez les R et les PA (P < 0,05 dans les 2 cas). Par contre, les...
Tipo: Journal Article Palavras-chave: COMPORTEMENT MATERNEL; EXPERIENCE; DIFFERENCES RACIALES; BREBIS.
Ano: 1984 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20088a6c58dc&uri=/notices/prodinra1/2011/02/
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Comparison of the effects of two methods of main olfactory system impairment on olfactory discrimination and selective nursing of lambs by ewes Inra
Poindron, P.; Serafin, N.; Terrazas, A; Hernandez, H.; Meurisse, M.; Houot, B.; Larriva, J.; Lévy, F..
Tipo: Journal Article Palavras-chave: COMPORTEMENT MATERNEL; SYSTEME OLFACTIF.
Ano: 2003 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200752049a&uri=/notices/prodinra1/2008/01/
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Early recognition of newborn goat kids by their mother: II- Auditory recognition and evidence of an individual acoustic signature in the neonate Animal Physiology
Terrazas, A.; Serafin, N.; Hernandez, H.; Nowak, R.; Poindron, P..
The vocal recognition of newborn kids by their mother at 2 days postpartum, and the possible existence of inter-individual differences in the voice structure of newborn kids were investigated in two separate studies. The ability of goats to discriminate between the bleats of their own versus an alien kid was tested at 2 days postpartum in mothers being prevented access to visual and olfactory cues from the young. Goats spent significantly more time on the side of the enclosure from which their own kid was bleating, looked in its direction for longer and responded more frequently to the bleats of their own than to those of the alien kid (p < 0.05). In the second study the sonograms of 13 kids, studied from day 1 to 5 of their life, showed significant...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2003 URL: http://phy043.tours.inra.fr:8080/archive/00000055/
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Early recognition of newborn goat kids by their mother:I - Non-olfatory dicrimination Animal Physiology
Poindron, P.; Gilling, G.; Hernandez, H.; Serafin, N.; Terrazas, A..
Mother sheep and goats develop an early bond with their neonate on the basis of olfactory recognition. In the present study, we investigated whether goats were also able to show early (< 24hr postpartum) non olfactory discrimination of their kids, as already reported in sheep. In a first experiment we found that goats are not able to recognize their kid at 1 meter on the basis of olfactory cues alone. By contrast they showed a significant preference for their own kid in a two-choice test as early as 4 hr postpartum, and prepartum maternal anosmia did not impede the ability of mothers to show discrimination. We conclude that goats, like sheep, are fully able to discriminate their neonate without the help of olfactory cues very early after parturition....
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2003 URL: http://phy043.tours.inra.fr:8080/archive/00000051/
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From birth to colostrum: early steps leading to lamb survival Inra
Nowak, R.; Poindron, P..
Tipo: Conference Paper Palavras-chave: COMPORTEMENT MATERNEL; RELATION MERE-JEUNE; COLOSTRUM; RESERVE ENERGETIQUE; NOUVEAU-NE; LIEN; ATTACHEMENT; PERIODE POSTNATALE SUCKLING.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007600150d2&uri=/notices/prodinra1/2008/03/
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Induction of sexual activity in lactating anovulatory female goats using male goats treated only with artificially long days Animal Physiology
Delgadillo, J.A.; Flores, J.A.; Veliz, F. G.; Hernandez, H. F.; Duarte, G.; Vielma, J.; Poindron, P.; Chemineau, P.; Malpaux, B..
Two experiments were conducted to determine the response of Creole male goats treated with long days and melatonin implants, and the response of the anovulatory does to male effect using males treated only with artificially long days. All animals were allocated to open sheds. In Exp. 1, one group of males was under natural photoperiod (CG; n = 7); the second group was submitted to 2.5 mo of long days followed by the insertion of two s.c. melatonin implants (LD+MEL; n =7); the third group was subjected only to 2.5 mo of long days (LD; n = 7). Testicular weight was measured every 2 wk. Plasma testosterone concentrations were determined weekly. A treatment × time interaction was detected (P < 0.001) for testicular weight and plasma testosterone...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2002 URL: http://phy043.tours.inra.fr:8080/archive/00000009/
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Influence of breed on reactivity of sheep to humans Inra
Le Neindre, P.; Poindron, P.; Trillat, G.; Orgeur, P..
Des agnelles de deux races (Mérinos d’Arles et Romanov) et des croisées issues de mères Mérinos saillies par des mâles Romanov ont été observées dans cinq épreuves individuelles. Pendant les trois premières épreuves il n’y avait pas de congénères en vue et les animaux étaient seuls, avec de l’aliment concentré ou avec un homme. Pendant les deux dernières épreuves, des congénères étaient visibles, dans un parc contigu, et les animaux étaient seuls ou avec un homme. Les agnelles de race Romanov ont été beaucoup plus réactives que celles de race Mérinos d’Arles. Elles déféquaient et urinaient plus fréquemment, mangeaient moins et évitaient plus l’homme. Pour la plupart des critères les croisées avaient des performances plus proches de celles des Romanov...
Tipo: Journal Article Palavras-chave: PRESENCE DE L'HOMME; RELATION HOMME ANIMAL; RACE OVINE MERINOS D'ARLES; RACE OVINE ROMANOV.
Ano: 1993 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9400034080040069&uri=/notices/prodinra1/2007/11/
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Involvement of central muscarinic receptors in social and non-social learning in sheep Animal Physiology
Ferreira, G.; Poindron, P.; Levy, F..
Abstract Within 12 hours following parturition, ewes develop visual and auditory recognition of their lamb. To investigate whether central cholinergic muscarinic transmission plays a specific role in this social learning, we studied the effects of a muscarinic antagonist on neonate recognition via visual/auditory cues, and acquisition of a non-social visual discrimination. Injections of scopolamine (100 µg/kg; muscarinic antagonist crossing the blood-brain barrier) after birth did not affect maternal behavior but impaired visual/auditory recognition of the offspring. Recognition impairment did not occur in mothers treated with methylscopolamine (100 µg/kg; a peripheral muscarinic antagonist), indicating that central muscarinic transmission is specifically...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2003 URL: http://phy043.tours.inra.fr:8080/archive/00000043/
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Positive correlation between the body weight of anestrous goats and their response to the male effect with sexually active bucks Inra
Véliz, F.G.; Poindron, P.; Malpaux, B.; Delgadillo, J.A..
Tipo: Journal Article Palavras-chave: CARACTERE SAISONNIER; BIOSTIMULATION; INDUCTION D'OESTRUS; POIDS VIF; EFFET MALE; POIDS CORPOREL; ACTIVITE SEXUELLE; VARIATION SAISONNIERE; ANOESTRUS SAISONNIER TEASING; BODY CONDITION; SUBTROPICS.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200720e70f23&uri=/notices/prodinra1/2008/01/
Registros recuperados: 10
Primeira ... 1 ... Última
 

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