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Titolo:
Psychobiological consequences of two different weaning methods in sheep
Autore:
Orgeur, P; Bernard, S; Naciri, M; Nowak, R; Schaal, B; Levy, F;
Indirizzi:
INRA, CNRS, URA 1291, Lab Comportement Anim, F-37380 Nouzilly, France INRA Nouzilly France F-37380 Comportement Anim, F-37380 Nouzilly, France INRA, Pathol Infect & Immunol Lab, F-37380 Nouzilly, France INRA Nouzilly France F-37380 ect & Immunol Lab, F-37380 Nouzilly, France INRA, Lab Pathol Aviaire & Parasitol, F-37380 Nouzilly, France INRA Nouzilly France F-37380 iaire & Parasitol, F-37380 Nouzilly, France
Titolo Testata:
REPRODUCTION NUTRITION DEVELOPMENT
fascicolo: 2, volume: 39, anno: 1999,
pagine: 231 - 244
SICI:
0926-5287(199903/04)39:2<231:PCOTDW>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
BEHAVIORAL-RESPONSES; MATERNAL SEPARATION; GUINEA-PIGS; CORTISOL; LAMBS; EWES; VOCALIZATION; ENDOCRINE; INFECTION; RATS;
Keywords:
sheep; weaning; psychobiology; welfare;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Orgeur, P INRA, CNRS, URA 1291, Lab Comportement Anim, F-37380 Nouzilly, France INRA Nouzilly France F-37380 nt Anim, F-37380 Nouzilly, France
Citazione:
P. Orgeur et al., "Psychobiological consequences of two different weaning methods in sheep", REPROD NUTR, 39(2), 1999, pp. 231-244

Abstract

Weaning is associated with a break in the mother-infant contact. In sheep,under natural conditions, the rupture of the social bond is progressive. In contrast, weaning imposed by breeders may result in psychobiological disturbances. The aim of this experiment was to measure the behavioural, hormonal and immune consequences of two types of sudden weaning: total separation(TS) and partial separation (PS), in 42 Ile-de-France ewes and their 60 lambs. TS animals (lambs and ewes) vocalized less frequently and for a shorter period of time than did the PS animals. Neither the plasmatic cortisol level in lambs nor the humoral response of dams and young were modified by the two weaning methods. In contrast, the excretion of coccidial oocysts increased significantly after weaning in TS lambs only and the growth rate of TS females was lower than that of the other lambs. These results suggest that these methods of rupture of mother-young social contact have only limitednegative consequences on both partners in sheep, contrary to primates and rodents. (C) Inra/Elsevier, Paris.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 15:15:34