Influence of the Main Cereal and Feed Form of the Diet on Performance and Digestive Tract Traits of Brown-Egg Laying Pullets.


Autoria(s): Frikha, M.; Safaa, M.H.; Serrano, M.P.; Arbe, X.; Mateos, G.G.
Data(s)

01/05/2009

Resumo

The influence of the main cereal and feed form of the diet on performance and digestive tract traits was studied in 576 brown-egg laying pullets from 1 to 120 d of age. From 1 to 45 d of age, 4 diets arranged factorially with 2 cereals (corn vs. wheat) and 2 feed forms (mash vs. pellets) were used. Each treatment was replicated 6 times (24 pullets per replicate). From 46 to 120 d of age, all diets were offered in mash form and the only difference among diets was the cereal used. Cumulatively, pullets fed the corn diets had higher BW gain (P < 0.05) but similar feed conversion ratio as pullets fed the wheat diets. From 1 to 45 d of age, pullets fed pellets consumed more feed (P < 0.001) and had higher BW gain (P < 0.001) than those fed mash. Most of the beneficial effects of pelleting on productive performance were still evident at 120 d of age. At 45 d of age, gizzard weight (g/kg of BW) was higher (P < 0.01) in pullets fed corn than in pullets fed wheat diets. Feeding pellets reduced the relative weight of the digestive tract and the gizzard (P < 0.001) as well as the length (cm/kg of BW) of the small intestine (P < 0.01) at both ages. The pH of gizzard contents at 120 d of age was not affected by cereal but was lower in pullets that were fed mash from 1 to 45 d of age (P < 0.01). We conclude that wheat can be used in substitution of corn in pullet diets with only a slight reduction in BW gain and that feeding pellets from 1 to 45 d of age increased BW gain and pH of the gizzard and reduced the relative weight of the gizzard and the length of the gastrointestinal tract at 120 d of age.

Formato

application/pdf

Identificador

http://oa.upm.es/15078/

Idioma(s)

eng

Publicador

E.T.S.I. Agrónomos (UPM)

Relação

http://oa.upm.es/15078/1/INVE_MEM_2009_98901.pdf

http://ps.fass.org/content/88/5/994.abstract?sid=5fac449a-c66d-4bb4-aeff-3ae03b352dfd

info:eu-repo/semantics/altIdentifier/doi/3382/ps.2008-00480

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/restrictedAccess

Fonte

Poultry Science, ISSN 0032-5791, 2009-05, Vol. 88, No. 5

Palavras-Chave #Veterinaria #Ciencia y Tecnología de Alimentos
Tipo

info:eu-repo/semantics/article

Artículo

PeerReviewed