Genetic and Non-Genetic factors affecting body weight of buffaloes
نویسندگان
چکیده
The present experiment was conducted on 60 randomly selected dairy units consisting of 116 Graded Murrah,70 Diara type and 121 Non-descript type buffalo cows utilizing the procedure of ‘’stratified random sampling with proportional allocation (Snedecor & Cochran,1967) in and around Patna.Genetic factors were the three different genetic groups of buffaloes viz. Graded murrah,Diara and Non-descript types prevalent in Bihar.Where as Non-genetic factors included in the study were location of herd,faming system and sequence of lactation.The average estimates of body weight of Graded murrah, Diara and Non-descript were found to be 508.972+3.36, 461.789+3.32 and 483.857+3.30 kg respectively. The three genetic groups of buffaloes differed significantly (p<0.05) among themselves with respect to their body weight.Farming system and lactation order had significant(p<0.01) influence on body weight. Body weight of the animals was the lowest at first parity and then increased significantly (p<0.05) in subsequent parities.
منابع مشابه
Phenotypic and Genetic Factors Affecting on Reproductive Lifetime of Lori-Bakhtiari Ewes
In this study phenotypic and genetic factors affecting the reproductive efficiency of Lori-Bakhtiari ewes were determined using 8202 reproductive records of 2478 ewes collected at Shooli research station in the southwestern part of Iran (Shahrekord) during 1989 to 2012. Reproductive efficiency over all consecutive lambing opportunities were calculated by adding the total reproductive efficiency...
متن کاملEffects of Genetic and Non-genetic Factors on Body Weight and Carcass Related Traits in Two Strains of Japanese Quails
The current study was conducted to investigate the effects of genetic and non-genetic factors on body weight and carcass traits of Japanese quails. Two strains of Japanese quail (150 wild quails and 150 white quails) were used as base population. Four mating groups were used to produce progenies: wild male × wild female, white male × wild female, wild male × white female and white male × white ...
متن کاملEnvironmental and Genetic Factors Affecting Early Growth Traits in Three Yemeni Indigenous Sheep Breeds
The data were collected from 1992 to 2009 in Burri, White Boni and Black Boni sheep maintained at the Regional Research Station in the Central Highlands of Yemen. Data were analyzed to study the effects of environmental and genetic factors on body weight and growth rate from birth to weaning. The least square means for body weights (BW) were 2.54, 2.18 and 2.26 kg for birth; 12.49, 10.58 and 11...
متن کاملGenetic and non-Genetic variations of body weight in iranian native fowl and their crosses with exotic breeds
متن کامل
Phenotypic and Genetic Analysis of Lori-Bakhtiari Lamb's Weight at Different Ages for Autosomal and Sex-Linked Genetic Effects
The data set used in this study contained 8793 records of lamb's weight (kg) from 320 sires and 2349 dams collected during 1989 to 2014 from the Lori-Bakhtiari flock at Shooli station in Shahrekord, Iran. Non-genetic factors and genetic parameters (partitioned into autosomal, sex-linked and maternal) of lamb's weight at different ages were estimated using without and with sex-linked genetic eff...
متن کامل