University of New England, NSW, Australia

Bangladesh Agricultural University, Mymensingh

Bangladesh Agricultural University, Mymensingh

Bogra Govt. Azizul Haque College

Bogra Govt. Girls’ High School

July 01, 2009 to February 28, 2010

May 02, 2013 to May 02, 2015

May 03, 2015 to Present

Topon Chandra Barman, Mohammad Mujaffar Hossain, Md. Mukhlesur Rahman, Md. Younus Ali and N. R. Sarker. An assessment of socio-economic conditions of the farmers related to goat fattening in Rangpur district of Bangladesh. Asian-Australasian Journal of Food Safety and Security. 2017, 1(1): 1-6. 

Siddique, A., Ferdous, K., Parvez, M., Islam, M., Hassan, M., Kamruzzaman, M., & N.R.Sarker,  (2019). Histo morphometric evaluation of testes of Black Bengal goats. Bangladesh Veterinarian, 35(1-2), 40–46.

Md. Ariful Islam, N.R. Sarker, M. A. R. Howlider, Aminul Islam. Availability and morphological comparison between Native and Broiler chicken in Bangladesh. International Journal of Natural and Social Sciences. 2020, 7(2): 19-28.

Md. S. Khoda, N.R. Sarker, A. K. F. H. Bhuiyan and Md. Samsul Alam Bhuiyan. Evaluation of productive and reproductive performance of crossbred and Deshi dairy genotypes in Bangladesh. International Journal of Natural and Social Science. 2015, 2(4):6-13.

N.R. Sarker, A. Hoque, S. Faruque, N. Islam and A. K. F. H. Bhuiyan. An ex-situ study on body characteristics and effect of plumage colour on body weight of indigenous chicken (Gallus domesticus) in Bangladesh. Acta Scientiarum Journal, Animal Science Maringa. Jan-Mar, 2014, 36: 79:84.

N.R. Sarker, B. J. Walmsley and S. Hermesch. Genetic Parameters for Primal Cut Weights in Pigs. Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.23, p. 318-321.

N.R. Sarker, B. J. Walmsley and S. Hermesch. Estimation of genetic correlations between primal cut weights and length or area traits in live pigs. APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association, Brisbane, Australia, 15th - 18th November 2021. Animal - Science Proceedings, 12(2), p. 227-227.

N.R. Sarker, B. J. Walmsley and S. Hermesch.Variance components estimation for body length and area traits derived from image analysis of live pigs. APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association, Brisbane, Australia, 15th - 18th November 2021. Animal - Science Proceedings, 12(2), p. 266-266.

Funded by: University of New England, NSW, Australia

Funded by: Armidale Animal Breeding Trust (AABT), NSW, Australia

Funded by: Australian Government

Funded by: Ministry of National Science, Information and Communication Technology

Funded by: Australian Government Research Training Program and Australian Pork Limited

Position: PhD Student

Description: Carcase value is predominantly based on hot carcase weight and fat depth without considering price variation in different primal cuts. This research aimed to develop selection strategies to improve carcase value by including valuable primal cuts into existing breeding objectives of pigs and beef. Therefore, this thesis focused on the fundamental requirements, i.e. estimation of genetic parameters for primal cuts and linear or area measurements of live pigs as selection criteria for primal cuts. Further economic values for different primal cuts were derived and predicted genetic responses to evaluate different selection strategies in breeding objectives. Primal cuts were expressed as both weight and percentage traits. Significant exploitable genetic variability in individual primal cuts or groups of primal cuts at a fixed carcase weight was evident for pigs and beef. Heritabilities for primal cuts of pigs were low to moderate. The strongest negative genetic correlation was found between leg and belly primal cuts. Linear and area measurements of pigs were lowly to moderately heritable. Genetic correlations between linear or area measurements and primal cuts indicated that the area measurements were significant selection criteria for all primal cuts in pigs. Beef primal cuts were moderate to highly heritable. Two different primal groups were also derived in beef including high-valued cuts (HVC) and low-valued cuts (LVC), where HVC was highly heritable. Primal cut traits were included in the breeding objectives as a percentage trait rather than weight trait to keep the traits independent of carcase weight. An approach was derived to estimate economic values directly for primal cut traits based on an independent model relevant for primal cuts. In pig breeding objectives, primal cuts were included based on two approaches, either as loin and belly primals separately or as a middle primal. Inclusion of middle primal only was considered better because of the higher response than the inclusion of loin and belly separately in breeding objective. In beef breeding objectives, HVC was included as a breeding objective trait based on two different production systems representing the domestic and Japanese markets. There was a higher response to selection for the Japanese index than the domestic market as the production system for the Japanese market was based on higher carcase values and feed prices. Additional responses were generated for both pig and beef breeding objectives by including valued primal cuts as breeding objective traits. Therefore, expanding knowledge of primal cut traits and including them in breeding programs for both pigs and beef offers new opportunities to improve carcase value in the livestock industry.

URL: https://www.linkedin.com/in/sarkernr/

URL: https://www.researchgate.net/profile/Nipa-Sarker

URL: https://scholar.google.com/citations?hl=en&user=BxuhX8YAAAAJ&view_op=list_works&gmla=ABEO0Yqpz02WZvFLvywPCLCXSaDYhskrl-1I9UdHF1yj5gFeXZxCMmDjcvWLbmfLM2ccesPqZKlmFRdlVj26eZ2p