H.K. Narula
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View article: Longitudinal study of inbreeding effect on growth traits of Marwari lambs
Longitudinal study of inbreeding effect on growth traits of Marwari lambs Open
This study aimed to assess the impact of inbreeding on growth traits and genetic diversity in a closed flock of Marwari sheep. Data from 11 126 lambs born between 1981 and 2020 at ICAR-CSWRI-ARC in Bikaner, Rajasthan (India), were used to …
View article: Estimates of Maternal Effect and (co)Variance Components for BodyWeight at Different Ages by Animal Model in Chokla Sheep
Estimates of Maternal Effect and (co)Variance Components for BodyWeight at Different Ages by Animal Model in Chokla Sheep Open
Background: For this study, information was gathered on 6785 Chokla sheep at the Central Sheep and Wool Research Institute in Bikaner, Rajasthan, India and documented between 1974 and 2020. Methods: (Co)variance components and genetic para…
View article: Sheep breeding in north-western arid and semi-arid regions of India: An overview
Sheep breeding in north-western arid and semi-arid regions of India: An overview Open
Meatconsumption in India isincreasingrapidly andthe demandwill be much higher in nearfuture. Sheep meat has scope to fulfil this gap, given a strategic planning. Sheep husbandry contributes sizeably to the livelihood and economic sustenanc…
View article: Better odds of lamb survival in sheep at dry arid tropical region of India
Better odds of lamb survival in sheep at dry arid tropical region of India Open
Lamb survival till first 28 days of life is critical as it increases the chances of economic gain in flock. Objective of the current study was to assess the incidence of neonatal mortality in lambs born in arid region of India and genetic …
View article: Evaluation of genetic and phenotypic parameters growth traits in organized flock of Chokla sheep of Rajasthan
Evaluation of genetic and phenotypic parameters growth traits in organized flock of Chokla sheep of Rajasthan Open
The sire effect was highly significant (P≤0.01) on all growth traits.The sex effect of lamb was highly significant (P≤0.01) on all growth traits but non-significant on 12 months body weight, period effect was highly significant (P≤ 0…
View article: Evaluation of reproductive traits of Chokla sheep under semi-arid conditions of Rajasthan
Evaluation of reproductive traits of Chokla sheep under semi-arid conditions of Rajasthan Open
The study analysed the records of 1,172 ewes maintained at ICAR–Central Sheep and Wool Research Institute at Avikanagar and Bikaner, Rajasthan over a period of 22 years (1994-2016). Eight reproductive traits were assessed, namely age at …
View article: Lifetime reproductive performance of Chokla sheep at an organized farm in semi-arid conditions
Lifetime reproductive performance of Chokla sheep at an organized farm in semi-arid conditions Open
The Chokla sheep, renowned as the finest carpet wool producer of India, plays an important role in supporting the rural economy of the arid and semi-arid regions of its native state of Rajasthan. This study was carried out to assess the li…
View article: Selection indices for improvement in body weights and fleece yield of chokla sheep
Selection indices for improvement in body weights and fleece yield of chokla sheep Open
Data on 3714 Chokla sheep, maintained at ICAR-Central Sheep and Wool Research Institute (CSWRI), Avikanagar, Rajasthan, collected for a period of 18 years (1994 to 2011) were used in the study. Traits analyzed were body weights at birth (B…
View article: Genetic polymorphism of KRT 1.2, kap 1.3 and THH gene in magra sheep
Genetic polymorphism of KRT 1.2, kap 1.3 and THH gene in magra sheep Open
Physical traits of wool like fibre diameter, medullation, length and lustre are important in textile industry. Magra sheep has been recognised to possess good quality lustrous wool, which has high demand in the Indian carpet industry. The …
View article: Estimation of (CO) variance components for growth traits in Magra sheep
Estimation of (CO) variance components for growth traits in Magra sheep Open
The objective of the study was to estimate the (co)variance components and genetic parameters for different growth traits of Magra flock maintained at the Arid Region Campus, ICAR-Central Sheep and Wool Research Institute, Bikaner, Rajasth…
View article: Genetic Analysis of Intron 2 of Muscling Gene Myostatin (MSTN) and its Association with Body Weight in Marwari Sheep
Genetic Analysis of Intron 2 of Muscling Gene Myostatin (MSTN) and its Association with Body Weight in Marwari Sheep Open
Myostatin (MSTN), a negative regulator of skeletal muscle development in mammals, represents a key target for genetic investigations in meat-producing animals, with mutations responsible for increased skeletal-muscle mass was described in …
View article: Influence of environmental factors on production traits and heritability estimates of magra sheep in Arid region
Influence of environmental factors on production traits and heritability estimates of magra sheep in Arid region Open
The aim of the present study was to examine the effect of non-genetic factors on growth and wool traits of 1482 Magra sheep spread over a period of five years (2008–12) maintained at the Arid Region Campus, ICAR-Central Sheep and Wool Rese…
View article: Comparison of Effectiveness of Animal Model Versus Sire Model for Different Growth Traits in Marwari Sheep
Comparison of Effectiveness of Animal Model Versus Sire Model for Different Growth Traits in Marwari Sheep Open
Growth traits records of lambs (1649) from 107 sires were used to evaluate the sires by estimating the breeding values using Best Linear Unbiased Prediction (BLUP) and Derivative-Free Restricted Maximum Likelihood (DFREML) methods. The ave…
View article: Estimates of heritability for growth and wool traits in Marwari sheep at arid region of Rajasthan
Estimates of heritability for growth and wool traits in Marwari sheep at arid region of Rajasthan Open
Data on 4201 records of Marwari sheep maintained at Arid Region Campus of Central Sheep and Wool Research Institute, Bikaner (Rajasthan) distributed over a period of 15 years (1996-2010) were analyzed for estimation of heritability of grow…
View article: Factors affecting flock life and life-time greasy fleece weight in Marwari sheep
Factors affecting flock life and life-time greasy fleece weight in Marwari sheep Open
A study was undertaken to evaluate the effects of genetic and non-genetic factors on flock life and life-time greasy fleece weight in Marwari flock comprising records of 3519 animals maintained at Arid Region Campus of Central Sheep and Wo…