estimation of genetic and phenotypic parametersof some reproductive traits of black bengal does
نویسندگان
چکیده
the objective of this study was to evaluate genetic and phenotypic parameters for some reproductive traits of black bengal does. genetic parameters were estimated by residual maximum likelihood procedure, fitting an animal model ignoring maternal genetic or permanent environmental effects. the least-squares means of litter size at birth (lsb), litter size at weaning (lsw), litter weight at birth (lwb), litter weight at weaning (lww) and gestation length were 1.50, 1.29, 1.58 kg, 6.37 kg and 144.71 days, respectively. the effect of parity of doe was significant for lsb, lsw, lwb and lww. in general, lsb, lsw, lwb and lww increased with the progress of parity. the effect of season of kidding was significant for lsw, lwb and lww. estimates of heritability for lsb, lsw, lwb, lww and gestation length were 0.08, 0.13, 0.10, 0.00 and 0.18, respectively. the low estimates of heritability obtained for reproductive traits indicated that selection based on the doe’s own performance may result in slow genetic improvement.
منابع مشابه
Estimation of Genetic and Phenotypic Parametersof Some Reproductive Traits of Black Bengal Does
The objective of this study was to evaluate genetic and phenotypic parameters for some reproductive traits of Black Bengal does. Genetic parameters were estimated by Residual Maximum Likelihood procedure, fitting an animal model ignoring maternal genetic or permanent environmental effects. The least-squares means of litter size at birth (LSB), litter size at weaning (LSW), litter weight at birt...
متن کاملGenetic Evaluation of Growth Traits of Black Bengal Goat
Black Bengal goat is the heritage and one of the potential genetic resources of Bangladesh. Least-squares means for body weights at birth, 3, 6, 9 and 12 months of age were 1.09, 5.12, 8.02, 10.92 and 14.47 kg, respectively. Sex of the kid has significant (P
متن کاملEstimation of Phenotypic and Genetic Parameters of Egg Quality Traits of Azerbaijan Native Hens
The egg quality is one of the most important economic factors for layers that are crucial for hatchability and marketing. Given the low number of egg quality traits records, one of the approaches in estimating phenotypic and genetic parameters is multi trait analysis. The aim of this study was to estimate the phenotypic and genetic parameters of west Azerbaijan native hens egg quality traits by...
متن کاملgenetic evaluation of growth traits of black bengal goat
black bengal goat is the heritage and one of the potential genetic resources of bangladesh. least-squares means for body weights at birth, 3, 6, 9 and 12 months of age were 1.09, 5.12, 8.02, 10.92 and 14.47 kg, respectively. sex of the kid has significant (p
متن کاملEstrus Characteristics of Black Bengal Does Under Intensive Condition
The present study was carried out to investigate the effect of different seasons on length and duration of estrus as well as to observe the behavioral changes and physiological peculiarities during estrus period. Three climatic seasons and age groups were considered: summer (March-June), rainy (July-October) and winter (November-February); A (6-9 month), B (9-12 month) and C (>12 month). Estrus...
متن کاملsome properties of fuzzy hilbert spaces and norm of operators
in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...
15 صفحه اولمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
iranian journal of applied animal scienceناشر: islamic azad university - rasht branch
ISSN 2251-628X
دوره 3
شماره 4 2013
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023