Genetic parameters for direct and maternal effects on birth weight of crossbred calves

Mandal, Ajoy; BEHERA, R; Ratwan, Poonam; BHAKAT, C; SANTRA, A

doi:10.56093/ijans.v88i3.78382

Cited by 1 publication

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The least squares means of birth weight in crossbred calves was 21.92±0.10 kg. It was slightly lower as compared to other crossbreds like Frieswal (26.93 kg) (Gaur et al 2006, Kumar et al 2008, Karan-Fries (27.3 kg) (Singh and Gurnani 2002), Karan-Swiss (28.03 kg) (Mandal and Sachdeva 1999) and Sunandini (28.4 kg) (Muhammed et al 2015). The difference in birth weight in various crossbreds could be due to the genetic makeup of the herds and management practices adopted at different farms.…”

Section: Resultsmentioning

confidence: 78%

“…Similar estimates of heritability (h 2 = 0.21) was also reported by Kumar et al (2008) in Frieswal (crossbred) cattle. Several other authors however reported higher estimate of heritability (h 2 = 0.29) of birth weight in crossbred cattle (Mandal andSachdeva 1999, Singh et al 2011). Moderate heritability of birth weight reflects ample scope of improvement through managemental interventions.…”

Section: Resultsmentioning

confidence: 95%

See 1 more Smart Citation

Investigating reasons for lower birth weight in crossbred calves

Upadhyay

Gaur

Bharti

et al. 2017

Indian J of Anim Sci

View full text Add to dashboard Cite

The present study was carried out to investigate the reasons of lower birth weight in crossbred (50-75% Exotic and 25-50% Hariana) calves. The data on birth weight of 2,102 crossbred calves, progeny of 22 sires over a period of 11 years from 2005 to 2015 were analyzed under investigation using Least Squares analysis. Heritability of birth weight was calculated using half sib correlation method. The observed parameters were period of calving, season of calving, sex of calf, parity of dam, age of dam at calving, weight of dam at calving and sire of calf. Research results revealed that average birth weight of crossbred calves was 21.92 kg. The effect of period of calving, season of calving, sex of calf, age of dam at calving, weight of dam at calving and sire of calf was statistically significant on birth weight. Birth weight showed increasing trend across the periods. The heaviest (9.47% more than rainy) birth weight was observed for calves, born in hot-dry (summer) season whilst, it was the lowest in those born inhot-humid (rainy) season. Male calves were heavier (3.66% more) at birth than the female calves. Cows more than 6 years of age and 400 kg body weight produced the heaviest calves. Five sires (22.72%) had their calves with more than 24 kg birth weight. Heritability of birth weight in crossbred calves was moderate (0.24±0.08) reflecting the ample scope of improvement through proper feeding and care of dam.

show abstract

Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 95%