Data/hora: 16/06/2024 08:50:00

Provedor de dados: | 89
País: | Brazil
Título: | Effects of inverting the position of layers eggs during storage on hatchery performance parameters
Autores: | Lima,JCS de; Silva,PL; Coelho,LR; Borges,MS; Freitas,AG de; Fonseca,BB.
Data: | 2012-12-01
Ano: | 2012
Palavras-chave: | Storage; Layer breeders; Hatchling weight; Egg position; Hatchery performance.
Resumo: | Storing hatchable eggs is a common practice in commercial hatcheries. However, storage time may negative effects on several performance parameters. An experiment was carried out to evaluate inverting egg position during storage of eggs laid by young and old layer breeders. Fertile eggs of 32 and 58-week-old breeders were stored for seven, 14, and 21 days at 18ºC ± 2ºC and 80% ± 10% relative humidity (RU). The following parameters were evaluated: egg weight loss, hatchability and hatchling weight, and embryodiagnosis results. Eggs stored with the small end up lost less weight during storage compared with the control eggs. Storing eggs for 14 days with the small end up reduced early embryo mortality, improving hatchability. In addition, hatchling weight increased. These results show that the detrimental effects of long storage periods may be alleviated when eggs are stored with the small end up to 14 days of storage.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400003
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/S1516-635X2012000400003
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.14 n.4 2012
Fonte: | info:eu-repo/semantics/openAccess