Data/hora: 12/06/2024 14:43:58

Biblioteca(s): 	Embrapa Gado de Leite.	
Data corrente: 	21/02/2017	
Data da última atualização: 	30/01/2023	
Autoria: 	GIONBELLI, T. R. S.; ROTTA, P. P.; VELOSO, C. M.; VALADARES FILHO, S. C.; CARVALHO, B. C. de; MARCONDES, M. I.; FERREIRA, M. F. L.; SOUZA, J. V. F.; SANTOS, J. S. A. A.; LACERDA, L. C.; DUARTE, M. S.; GIONBELLI, M. P.	
Afiliação: 	T. R. S. GIONBELLI, UFLA; P. P. ROTTA, UFV; C. M. VELOSO, UFV; S. C. VALADARES FILHO, UFV; BRUNO CAMPOS DE CARVALHO, CNPGL; M. I. MARCONDES, UFV; M. F. L. FERREIRA, UFV; J. V. F. SOUZA, UFV; J. S. A. A. SANTOS, UFV/VIÇOSA; L. C. LACERDA, UFV; M. S. DUARTE, UFVF; M. P. GIOBELLI, UFLA.	
Título: 	Intestinal development of bovine foetuses during gestation is affected by foetal sex and maternal nutrition.	
Ano de publicação: 	2017	
Fonte/Imprenta: 	Journal of Animal Physiology and Animal Nutrition, v. 101, n. 3, p. 493-501, 2017.	
DOI: 	10.1111/jpn.12572	
Idioma: 	Português	
Notas: 	Publicado online em 16 ago. 2016.	
Conteúdo: 	Summary We aimed to evaluate the effects of maternal nutrition (MN) and foetal sex on the intestinal development ofbovine foetuses throughout different days of gestation (DG). Forty-four multiparous, dry Holstein 9 Gyr cowswith average initial body weight of 480 +/_ 10 kg were fed the same diet of either restricted feeding at 1.15% ofbody weight (CO, n = 24) or fed ad libitum (overnourished, ON, n = 20). Six cows from CO group and &#64257;ve cowsfrom ON group were slaughtered at 139, 199, 241 and 268 DG, and foetuses were necropsied to evaluate theintestinal development. The mass, length and density of foetal intestines were not affected by MN (p &#8805; 0.260).An interaction between MN and DG was observed for the villi length of jejunum (p = 0.006) and ileum(p < 0.001). Villi length of jejunum and ileum was higher (p < 0.10) in foetuses from ON-fed cows than in foe-tuses from CO-fed cows at 139 DG. However, at 199 DG, the villi length of jejunum and ileum of foetuses fromCO-fed cows was higher than in foetuses from ON-fed cows. Despite these differences, MN did not affect the villilength of jejunum and ileum at 268 DG (p > 0.10). Female foetuses had greater small intestine mass (p = 0.093),large intestine mass (p = 0.022), small intestine mass in proportion to body mass (p = 0.017) and large intestinemass in proportion to body mass (p < 0.001) than male foetuses. Female foetuses had also longer small intestine(p = 0.077) and greater small intestine density (p = 0.021) and villi length of jejunum (p = 0.001) and ileum(p = 0.010) than males. We conclude that MN affects the pathway for the development of foetal villi lengththroughout the gestation in bovine foetuses without changing the &#64257;nal villi length. Female foetuses had higherintestinal mass, density and villi length than males during the foetal phase in bovines.	
Palavras-Chave: 	Foetal programming; Intestinal morphology; Sex-biased; Villi length.	
Thesaurus Nal: 	absorption; feeding level; small intestine; zebu.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Gado de Leite (CNPGL)	
Exemplares: 	CNPGL - (23403-1) - UPC - AP - DD -  -  -  - DIS