2015, Number 2

Journal of Animal and Poultry Sciences (JAPSC)

Vol 4(2), 2015


Estimation of genetic parameters for economic traits in Mazandaran native chickens


Gorgani Firozjah, H. Atashi, and A. Zare


The aims of this study were to estimate genetic parameters and genetic trends of economic traits in Iranian native chickens. The used data were collected from the Mazandaran native chickens breeding center located in Mazandaran Province during 1988 and 2011 years. The (co)variance components were estimated through an animal model using Gibbs sampling method. The estimated heritability (±SE) for body weight at hatch (BW1), body weight at age of 8 (BW8) and 12 (BW12) weeks, age at sexual maturity (ASM), body weight at sexual maturity (WSM), the number of produced eggs during the first 12 weeks of production (ENs), the first egg weight (FEW), average egg weight at age of 28 (EW28), 30 (EW30), and 32 (EW32) weeks of production, and average egg weight of 28 to 32 weeks of production (EW28-32) were 0.33(±0.02), 0.29(±0.02), 0.28(±0.02), 0.39(±0.02), 0.47(±0.02), 0.24(±0.02), 0.20(±0.02), 0.34(±0.02), 0.39(±0.02), 0.40(±0.01) and 0.51(±0.02), respectively. The average inbreeding coefficient was 2.8%, and ranged from zero to 29.8%. The results revealed significant effect of inbreeding on the BW1, BW8, ASM, ENs and EW28-32. The estimated genetic trends for BW8, BW12, WSM, FEW, EW28, EW30, EW32, ENs and EW28-32 were significant.

Key words: Heritability, Genetic trend, Genetic parameters, Mazandaran native chickens


Radial fracture in bat: a case report


 Sayahi, M. Salaran, S. Dehghani, A. Raayat Jahromi, H. Savadkouhi



Bats are the only mammals capable of sustained flight. Many fractures in this species will be open fractures, usually of the humerus or radius. The purpose of this study was to present a bat with fractured radius and report its handling, surgical technique, fracture reduction and fixation protocol.Anesthesia was induced by Ketamine (40 mg/kg), the fractured fragments of the radius were reduced, a straight stainless suture needle of appropriate size employed as intramedullary pin which was inserted into the medulla by retrograde technique. The bat was cage confined for three weeks and antibiotic was prescribed for 5 days. The follow up evaluation at three weeks post operation showed good union and callus formation at the fractured site.

Key words: Bat, Fracture, Radius, Intramedullary fixation