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Titolo:
Sucking motivation and related problems in calves
Autore:
de Passille, AM;
Indirizzi:
Agr & Agri Food Canada, Dairy & Swine Res & Dev Ctr, Lennoxville, PQ J1M 1Z3, Canada Agr & Agri Food Canada Lennoxville PQ Canada J1M 1Z3 , PQ J1M 1Z3, Canada
Titolo Testata:
APPLIED ANIMAL BEHAVIOUR SCIENCE
fascicolo: 3, volume: 72, anno: 2001,
pagine: 175 - 187
SICI:
0168-1591(20010502)72:3<175:SMARPI>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONNUTRITIVE SUCKING; DAIRY CALVES; SUCKLING BEHAVIOR; MILK; CALF; INTERSUCKING; HEIFERS; TAURUS;
Keywords:
sucking; motivation; cross-sucking; nursing; butting; milk intake; cholecystokinin;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: de Passille, AM Agr & Agri Food Canada, Dairy & Swine Res & Dev Ctr, POB 90-2000,Route 108E, Lennoxville, PQ J1M 1Z3, Canada Agr & Agri Food Canada POB 90-2000,Route 108 E Lennoxville PQ Canada J1M 1Z3
Citazione:
A.M. de Passille, "Sucking motivation and related problems in calves", APPL ANIM B, 72(3), 2001, pp. 175-187

Abstract

Since survival of the young mammals depends on sucking success, it is assumed that sucking motivation must be strong and that sucking deprivation would result in frustration which could have a negative impact on their welfare. This concern as well as that regarding cross-sucking between calves and intersucking between older animals has stimulated research on the motivation of calves for non-nutritive sucking. Non-nutritive sucking is elicited bythe ingestion of milk, and the lactose concentration in milk, rather than that of fat or protein, is the main factor stimulating non-nutritive sucking. Every time a calf drinks milk, it is stimulated to suck and deprivation of sucking may interfere with digestive processes or satiety. To understandthe behaviour of the calf during nutritive sucking, we examined the effects of milk flow on calves' sucking and butting an artificial feeding system. Slowing and stopping the flow rate stimulates butting and can lengthen theduration of sucking for the meal. It also stimulates the calf to switch teats when a second teat is available. These findings are well correlated to our observations of the calf suckling a cow in experimental manipulations. The duration of the meal is not correlated with milk intake, but it is influenced by milk availability and how hungry the calf is. Furthermore, calveswill butt more often when there is less milk available in the dam's udder,presumably because milk flow is slower. Consequently, it is the occurrenceof butting rather than sucking duration that would be a good indicator of milk intake when the calf is suckling the dam. Finally, we recommend a combination of slower milk flow and hay feeding and the provision of a non-nutritive artificial teat to reduce the occurrence of cross-sucking following amilk meal. Crown Copyright (C) 2001 Published by Elsevier Science B.V. Ah rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 13:38:26