PMID- 37956965
OWN - NLM
STAT- MEDLINE
DCOM- 20240101
LR  - 20240101
IS  - 1879-0038 (Electronic)
IS  - 0378-1119 (Linking)
VI  - 894
DP  - 2024 Feb 5
TI  - Genetic relationships between reproductive and production traits in Jersey 
      crossbred cattle.
PG  - 147982
LID - S0378-1119(23)00823-5 [pii]
LID - 10.1016/j.gene.2023.147982 [doi]
AB  - The study aimed to estimate the genetic parameters of different reproductive 
      traits namely age at first calving (AFC), calving interval (CI), days open (DO) 
      and number of service per conception (NSPC) and their associations with 
      productive traits including 305-day milk yield (305DMY), total lactation milk 
      yield (TLMY) and lactation length (LL) of Jersey crossbred cattle maintained at 
      Kalyani, Nadia, West Bengal, India. Genetic parameters of reproductive traits and 
      their correlations with productive traits were estimated by Restricted Maximum 
      Likelihood method and Bayesian approach. Using both analytical approaches, the 
      estimates of heritability for AFC, CI, DO and NSPC ranged from 0.12 -0.15, 
      0.05-0.08, 0.08-0.09 and 0.04-0.06, respectively. Low proportion of variances 
      associated with permanent environmental effect of animals (c(2) effect) were 
      detected for CI (0.08-0.10), DO (0.09-0.11) and NSPC (0.05-0.06) in both the 
      methods. Repeatability measures for all the reproductive traits considered in 
      this study were low to moderate in nature, which ranged from 0.09 to 0.17. 
      Genetic correlations between different reproductive traits were positive and low 
      (0.05) to high (0.98) in magnitude except AFC-NSPC. Low and negative genetic 
      correlations of AFC with 305DMY and TLMY were favourable and indicated animals 
      with high milk yield had early age of maturity. Positive genetic correlations 
      between CI, DO and NSPC with all production traits implied the antagonism 
      relationships among these traits, therefore in any breeding program for 
      improvement of production traits via selection, the reproductive traits should be 
      taken into account as well.
CI  - Copyright (c) 2023 Elsevier B.V. All rights reserved.
FAU - Roy, Ishani
AU  - Roy I
AD  - ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 
      West Bengal, India.
FAU - Rahman, Mokidur
AU  - Rahman M
AD  - ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 
      West Bengal, India.
FAU - Karunakaran, M
AU  - Karunakaran M
AD  - ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 
      West Bengal, India.
FAU - Gayari, Indrajit
AU  - Gayari I
AD  - ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 
      West Bengal, India.
FAU - Baneh, Hasan
AU  - Baneh H
AD  - Project Center for Agro Technologies, Skolkovo Institute of Science and 
      Technology (Skoltech), Moscow 121125, Russia.
FAU - Mandal, Ajoy
AU  - Mandal A
AD  - ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 
      West Bengal, India. Electronic address: ajoymandal@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20231111
PL  - Netherlands
TA  - Gene
JT  - Gene
JID - 7706761
SB  - IM
MH  - Female
MH  - Cattle/genetics
MH  - Animals
MH  - Bayes Theorem
MH  - *Reproduction/genetics
MH  - *Lactation/genetics
MH  - Milk
MH  - Phenotype
MH  - Fertility/genetics
OTO - NOTNLM
OT  - Cattle
OT  - Correlations
OT  - Heritability
OT  - Productive traits
OT  - Reproductive traits
OT  - Variance components
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/11/14 00:42
MHDA- 2024/01/02 11:42
CRDT- 2023/11/13 19:18
PHST- 2023/06/09 00:00 [received]
PHST- 2023/09/14 00:00 [revised]
PHST- 2023/11/09 00:00 [accepted]
PHST- 2024/01/02 11:42 [medline]
PHST- 2023/11/14 00:42 [pubmed]
PHST- 2023/11/13 19:18 [entrez]
AID - S0378-1119(23)00823-5 [pii]
AID - 10.1016/j.gene.2023.147982 [doi]
PST - ppublish
SO  - Gene. 2024 Feb 5;894:147982. doi: 10.1016/j.gene.2023.147982. Epub 2023 Nov 11.