Article (Scientific journals)
Relationship between leptin content, metabolic hormones and fat deposition in three beef cattle breeds.
Daix, Marie; Pirotte, Cécile; Bister, Jean-Loup et al.
2008In Veterinary Journal, 177, p. 273-278
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Keywords :
beef cattle; breed; carcass characteristics; leptin; metabolic hormones
Abstract :
[en] The aim of the study was to determine if cattle breeds differing in their carcass characteristics also differ in the profiles of their leptin and metabolic hormones. Three breeds, Belgian Blue (BB) (n=12), Limousin (L) (n=12) and Aberdeen Angus (AA) (n=12) with varying ability to deposit fat and protein were compared. Blood, muscle and subcutaneous (SC) adipose tissue were sampled. Animal performance, carcass and meat characteristics were determined as well as plasma leptin concentration, leptin gene expression in SC adipose tissue, leptin-receptor gene expression in SC adipose tissue and plasma concentration of insulin, tri-iodothyronin (T3), thyroxin (T4) and cortisol. The BB bulls showed the lowest values of leptin gene expression (P<0.05). Values of plasma leptin concentration and of leptin-receptor gene expression tended to be lower in BB than in the other breeds. For a similar amount of adipose tissue (after normalisation), BB bulls showed a higher ratio of plasma leptin (P<0.05), whereas normalised leptin gene and leptin-receptor gene expressions did not significantly differ between breeds. Belgian Blue bulls also differed in their metabolic hormone profile, tending to show lower values of insulin, T3 and T4 than the two other breeds. Cortisol levels were significantly lower (P<0.05) in BB than in L and AA animals.
Disciplines :
Animal production & animal husbandry
Veterinary medicine & animal health
Author, co-author :
Daix, Marie
Pirotte, Cécile
Bister, Jean-Loup
Wergifosse, Fabienne
Cuvelier, Christine ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Pharmacologie, pharmacothérapie et toxicologie
Cabaraux, Jean-François  ;  Université de Liège - ULiège > Département de productions animales > Ecologie et éthologie vétérinaires
Kirschvink, Nathalie
Istasse, Louis ;  Université de Liège - ULiège > Département de productions animales > Nutrition des animaux domestiques
Paquay, Raymond
Language :
English
Title :
Relationship between leptin content, metabolic hormones and fat deposition in three beef cattle breeds.
Publication date :
2008
Journal title :
Veterinary Journal
ISSN :
1090-0233
eISSN :
1532-2971
Publisher :
Elsevier
Volume :
177
Pages :
273-278
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 06 March 2009

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