V.I.A. Alva
Departamentos de Medicina Zootecnia de Aves, Etologia, Fauna Silvestre Animales de Laboratorio, FMVZ, UNAM, Circuito Exterior, Ciudad Universitaria, Delegacion Coyoacan, D.F.C.P. 04510, Mexico
L.J.A. Quintana
Departamentos de Medicina Zootecnia de Aves, Etologia, Fauna Silvestre Animales de Laboratorio, FMVZ, UNAM, Circuito Exterior, Ciudad Universitaria, Delegacion Coyoacan, D.F.C.P. 04510, Mexico
I.C. Gonzales-Rebeles
Departamentos de Medicina Zootecnia de Aves, Etologia, Fauna Silvestre Animales de Laboratorio, FMVZ, UNAM, Circuito Exterior, Ciudad Universitaria, Delegacion Coyoacan, D.F.C.P. 04510, Mexico
A.M. Gonzalez
Departamento de Zootecnia, Posgrado en Produccion Animal, Universidad Autonoma Chapingo, Km 38.5 carretera Mexico-Texcoco. C.P. 56230, Chapingo, Estado de Mexico
ABSTRACT
This study assessed the effect of photoperiod duration on production parameters (amount of eggs and weight) in ring-necked pheasants (Phasianus Colchicus). Forty-five birds were caged, distributed in groups of one male and four females (total 9 cages). Three photoperiod treatments were applied (18, 16 and 14 h of light) with three repetitions per treatment. Males and females were randomly assigned to the different groups. An ANDEVA test was used to compare means between treatments, with a multiple comparison Tukey's test in a GLM with SAS V.8.0. software package. Production parameters were recorded during 18 production weeks: egg weight (EW), egg mass (EM), eggs per female (EF) and laying percentage (LP). Significant differences were found in all variables between weeks (p<0.01), although the interaction of photoperiod with week was not significant (p>0.05). Photoperiod treatment had a significant effect on LP, EF and EM (p<0.05) during the study period (18 weeks); EW showed a 0.65% difference between the 18 h-light and 14 h-light treatments, although not statistically significant (p>0.05). All productive variables improved with the highest light-hours treatment (18 h) with the exception of EW.
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How to cite this article
V.I.A. Alva, L.J.A. Quintana, I.C. Gonzales-Rebeles and A.M. Gonzalez, 2015. Effect of Photoperiod on Production of Ring-Necked Pheasants (Phasianus colchicus). International Journal of Poultry Science, 14: 651-656.
DOI: 10.3923/ijps.2015.651.656
URL: https://scialert.net/abstract/?doi=ijps.2015.651.656
DOI: 10.3923/ijps.2015.651.656
URL: https://scialert.net/abstract/?doi=ijps.2015.651.656
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