Nazari, M., Ghavi Hossein-Zadeh, N., Shadparvar, A. (2017). Estimation of genetic parameters for milk protein percentage in Iranian native buffaloes using random regression test-day model. , 29(113), 31-40. doi: 10.22092/asj.2017.109459
Mohammad Ali Nazari; Navid Ghavi Hossein-Zadeh; Abdol Ahad Shadparvar. "Estimation of genetic parameters for milk protein percentage in Iranian native buffaloes using random regression test-day model". , 29, 113, 2017, 31-40. doi: 10.22092/asj.2017.109459
Nazari, M., Ghavi Hossein-Zadeh, N., Shadparvar, A. (2017). 'Estimation of genetic parameters for milk protein percentage in Iranian native buffaloes using random regression test-day model', , 29(113), pp. 31-40. doi: 10.22092/asj.2017.109459
Nazari, M., Ghavi Hossein-Zadeh, N., Shadparvar, A. Estimation of genetic parameters for milk protein percentage in Iranian native buffaloes using random regression test-day model. , 2017; 29(113): 31-40. doi: 10.22092/asj.2017.109459

Estimation of genetic parameters for milk protein percentage in Iranian native buffaloes using random regression test-day model

علوم دامی
Article 3, Volume 29, Issue 113, March 2017, Pages 31-40    PDF (866.47 K)
Document Type: Research Paper
DOI: 10.22092/asj.2017.109459
Authors
Mohammad Ali Nazari; Navid Ghavi Hossein-Zadeh* ; Abdol Ahad Shadparvar
University of Guilan
Abstract
In this research data of Iranian native buffaloes which were collected by the animal breeding center of Iran in 20 years from 1993 to 2013 were used. Data for first, second and third parities included 4339, 4439 and 4445 test-day records, respectively, which were distributed in 298 herds. The GLM procedure of SAS was used for determining the environmental effects affecting on milk protein percentage. The fixed effects of herd-test day, year-season and days in milk and age at calving as covariate were fitted in the model of analysis. Genetic parameters were estimated for milk protein percentage on different days in milk using single trait random regression model of the Wombat software. Heritability estimates for this trait in the first, second and third parities ranged from 0.005 to 0.14, 0.03 to 0.7 and 0.005 to 0.24, respectively. The highest heritability for milk protein percentage in the first, second and third parities were estimated in 300th, 300th and 5th days in milk as 0.14, 0.7 and 0.24, respectively. The means of genetic correlation in the first, second and third parities were estimated to be 0.09, 0.98 and 0.95, respectively. The heritability estimates of milk protein percentage were relatively high in this study. Therefore, optimal milk protein percentage can be obtained by selection in Iranian buffaloes.
Keywords
heritability; Milk protein percentage; Random regression; Iranian native buffalo
References

آمارنامه کشاورزی (1394). جلد دوم: مرکز فناوری اطلاعات و ارتباطات. وزارت جهاد کشاورزی. ص. 99.

قربانی، غ. (1371). اصول پرورش گاو­های شیری. انتشارات امیر کبیر اصفهان.

Borghese, A. (2005). Buffalo production and research. FAO Reional Office for Europe Inter-Regional Cooperative Research Network on Buffalo (ESCORENA). http://www.fao.org/docrep/010/ah847e/ah847e00.htm.

Ghavi Hossein-Zadeh, N. (2014). Linear and threshold analysis of direct and maternal genetic effects for secondary sex ratio in Iranian buffaloes. Journal of Applied Genetics. 55(3):365-372.      

Jamrozik, J., Schaeffer, L.R. and Jansen, G.B. (2000). Approximate accuracies of prediction from random regression models. Livestock Production Science. 66:85-92.

Madad, M., Ghavi Hossein-Zadeh, N., Shadparvar, A.A. and Kianzad, D. (2013). Random regression models to estimate genetic parameters for test-day milk yield and composition In Iranian Buffaloes. Archiv Tierzucht.56 (27):276-284.

Miglior, F., Gang, W., Wang, Y., Kistermarker, G.J., Sewalem, A. and Jamrozik, J. (2009). Short communication:Genetic parameters of production traits in Chinese Holsteins using a random regression test-day model. Journal of Dairy science. 92:4697-4706.

Naderfard, H.R. and Qanemy, A.W. (1997). Buffalo breeding in Islamic Republic of Iran. 5th congrees(proceedings). Caserta, Italy: 942-943.

Rener, E. (1983). Milk and dairy products in human nutrition.Volkswirschaftlicherverlag, Munich, Germany.

Rosati, A. and Van Vleck, L.D. (2002). Estimation of genetic parameters for milk, fat, protein and mozzarella cheese production for the Italian river buffalo Bubalus bubalis population. Livestock Production Science. 74:185-190.

Schaeffer, L.R., Jamrozik, J., Kistermaeker, G.J. and Van Doormal, B.J. (2000). Experience with a test day model. Journalof Dairy Science. 83:1135-1144.

Schaeffer, L.R. and Jamrozik J. (2008). Random Regression Models: a longitudinal perspective. Journal of Animal Breeding and Genetics. 125:45-146.

Schutz, M.M., Hansen, L.B., Steuernagel, G.R. and Reneau, J.K. (1990). Genetic parameters for somatic cells, protein and fat in milk of Holsteins. Journal of Dairy science. 73:494-502.

Strabel, T. and Misztal, I. (1990). Genetic parameters for first and second lactation milk yields of polish black and white cattle with random regression test-day models. Journal of Dairy science. 82:2805-2810.

Treviso, A.P.A. (2009). Associazione Provinciale Allevatori di Treviso, Controlli funzionali sui capi bufalini della provincial di Treviso. Accessed January 2011.

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