The effect of eggshell thickness on hatching traits of partridges
Rev. bras. ciênc. avic
; 18(n.esp 1): 13-17, Jul-Set. 2016. graf, tab
Article
em En
| VETINDEX
| ID: biblio-1490330
Biblioteca responsável:
BR68.1
Localização: BR68.1
ABSTRACT
Incubation is an important factor in poultry production, particularly in species with relatively low fertility and hatchability rates. This study examined the effect of eggshell thickness on hatching traits of partridges (A. chukar). A total of 462 eggs from intensively reared partridges were separated into three groups according to eggshell thickness, which was measured ultrasonically before incubation. Hatchability, chick weight, and chick length were assessed at the end of the incubation period. Hatching times were recorded during hatching. Embryonic mortalities in unhatched eggs were classified according to mortality stage at the end of incubation. The effect of eggshell thickness on hatchability was found to be insignificant for all groups. Moreover, eggshell thickness had no significant effect on chick weight or length.
Palavras-chave
Texto completo:
1
Base de dados:
VETINDEX
Idioma:
En
Revista:
R. bras. Ci. avíc.
/
Rev. bras. ciênc. avic
Ano de publicação:
2016
Tipo de documento:
Article