Elisabete Pereira Lemos Vianna

Universidade Unigranrio

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Deila Maria Ferreira Scharra

Ingrid Lyrio Figueira Rodrigues

Universidade Federal Fluminense

Ana Cláudia de Menezes Cruz

Universidade Unigranrio

Renato Luiz Silveira

Universidade Federal Fluminense

Fabiana Batalha Knackfuss

Universidade Unigranrio

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Universidade Unigranrio

Universidade Federal Fluminense

Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro

Serviço Autônomo de Água e Esgoto de Jaboticabal

University of Agricultural Sciences, Dharwad

Fundação de Estudo e Pesquisa em Medicina Veterinária e Zootecnia

Universidade do Porto

Polytechnic Institute of Porto

Universidade Federal do Rio Grande do Sul

Instituto de Geociencias

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The effect of post-hatch fasting for vitellin vesicle and diverticulum persistency in broilers (Gallus gallus)

Journal of Agricultural Sciences Research (2764-0973) (2022)

Elisabete Pereira Lemos Vianna Deila Maria Ferreira Scharra Ana Cláudia de Menezes Cruz Ingrid Lyrio Figueira Rodrigues Fabiana Batalha Knackfuss

An experiment was performed to study the fasting influence (12h, 24h, 48h and 72h) started immediately after hatching, until receiving the first food in 100 commercial "Cobb" hybrid linage lineage chicks, in the vitellin vesicle and diverticulum persistency.The chicks were reared until 58 days old and were slaughtered at the treatments finishing.The vitellin vesicles and diverticulum were analyzed and compared to the noted data regarding the weight gain, food consumption and food conversion, in the four experimental groups.According to the obtained results, it was observed that the chicks which received the initial food and water until 24 hours after the hatching showed better weight and food conversion indexes when compared to the other groups.It suggests a higher economy for the poultry farm comparatively to introducing the food at the first day of age, besides of showing a satisfactory time between the hatching and the transportation until the poultry farms.For the group receiving the early food, only the diverticulum was observed and, in most of times, small ones.It was observed that fasting had no influence in the vitellin diverticulum persistency, because in 100% of the samples it was present; however, the vitellin vesicle was influenced.

10.22533/at.ed.973292227074

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