Effect of Photoperiod on Production of Ring-Necked Pheasants (Phasianus colchicus)
نویسندگان
چکیده
منابع مشابه
Effect of sight barriers in pens of breeding ring-necked pheasants (Phasianus colchicus): I. Behaviour and welfare.
1. The study investigated the effects of providing sight barriers in breeding pens on pheasant mortality, feather damage and behaviour. 2. Data were collected from 11 conventional pens (control) and 11 pens with additional sight barriers (barrier) over the course of a ten week breeding season. Each pen contained 8 males and 56 females at the beginning of the season. 3. There was a higher rate o...
متن کاملGrowth and development of young game pheasants (Phasianus colchicus)
Fifty game pheasants were kept to 8 weeks in confinement housing and later maintained outdoors in a partially roofed aviary. Pheasants received commercial feed mixtures ad libitum. Body weight and dimensions were determined every 4 weeks. Ten pheasants were selected for slaughter at the end of 18 and 20 weeks each. After slaughter, their heads, shanks, feathers, blood, inedible viscera and majo...
متن کاملComparative evaluation of clinical efficiency of intramuscular diazepam-ketamine, medetomidine-ketamine, and xylazine-ketamine anaesthesia in Ring-necked pheasants (Phasianus colchicus)
Background: Several injectable anaesthetics and sedatives are used in various avian species for general anaesthesia. Birds are very sensitive animals and any mismanagement in a crisis can lead to immediate shock and death. Therefore, careful selection of the safest possible anaesthetic agent and dose is very important. Aims: The aim of this study was to examine...
متن کاملRegulation of nematode fecundity in the ring-necked pheasant (Phasianus colchicus): not just density dependence.
Patterns of nematode fecundity were investigated for infections of the caecal worm Heterakis gallinarum in the ring-necked pheasant (Phasianus colchicus). Worm length was a good predictor of parasite fecundity. After controlling for worm length no other factors, including parasite intensity, were related to worm fecundity. Density dependence in worm size was detected in natural infections at pa...
متن کاملSerum Biochemical Parameters in the Ring-Necked Pheasant (Phasianus colchicus) on Breeding Season
The influence of sex on serum biochemical parameters was investigated in adult (52 week-old) ring-necked pheasants on reproductive activity. Statistical comparisons were made for differences in values between male and female birds. Adult females had higher values for serum total protein and albumin. Significant variations were not observed in the analyses in relation to the sex of the birds for...
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ژورنال
عنوان ژورنال: International Journal of Poultry Science
سال: 2015
ISSN: 1682-8356
DOI: 10.3923/ijps.2015.651.656