Measuring of Udder Morphological Characteristics among Crossbred and Pure Sheep Breeds
الموضوعات :س. صادقی 1 , س. ع. رافت 2 , غ. مقدم 3 , ح. جانمحمدی 4
1 - Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran
2 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
3 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
الکلمات المفتاحية: image processing, crossbred, animal characterization, pure sheep, udder,
ملخص المقالة :
Image processing technique was used to compare udder morphological characteristics in two Iranian crossbred sheep populations including Ghezel-Arkhamerino, Moghani-Arkharmerino and a pure one that was Ghezel ewes. In addition, the resulted measurements were applied as independent variables for estimation of daily milk yield by regression models. Udder height of Ghezel was higher than Ghezel-Arkhamerino and Moghani-Arkharmerino. The udder left and right cistern height were imbalanced for Moghani-Arkharmerino crossbreds than for other populations. The teat opening, attachment width, direction of the right teat and teat-udder back distance for Ghezel ewes appeared to be the most useful traits among the udder traits taken in this study for predicting daily milk yield. The results reveals that digital image processing may be used as an alternative biometric characterization tool that would provide more accurate observation and measurements on domestic animals than current ones.
Abu A.H., Mhomga L.I. and Akogwu E. I. (2013). Assessment of udder characteristics of west African Dwarf (WAD) goats reared under different management systems in Makurdi, Benue State, Nigeria. African J. Agric. Res. 8(25), 3255-3258.
Altincekic S.O. and Koyuncu M. (2011). Relationship between udder measurements and the linear scores for udder morphology traits in Kıvırcık, Tahirova and Karacabey Merino ewes. Kafkas. Univ. Vet. Fak. Derg. 17(1), 71-76.
Birteeb P.T., Olusola Peters S., Yakubu A.D., Adekunle Adeleke M. and Ohiokhuaobo Ozoje M. (2012). Multivariate characterization of the phenotypic traits of Djallonke and Sahel sheep in northern Ghana. Trop. Anim. Health Prod. 4, 1-7.
Caja G., Such X. and Rovai M. (2000). Udder morphology and machine milking ability. Pp. 25-48 in Proc. 6thGreat Lakes Dairy Sheep Symp. Ontario, Canada.
Dzidic A., Kaps M. and Bruckmaier R.M. (2004). Machine milking of Istrian dairy crossbreed ewes, udder morphology and milking characteristic. Small Rumin. Res. 55, 183-189.
Fernandez G., Alvarez P., San Primitivo F. and De La Fuente L.F. (1995). Factors affecting variation of udder traits of dairy ewes. J. Dairy Sci. 78, 842-849.
Hernandez G.T. and William L. (1979). Genetic and environmental effects on milk production, milk composition and mastitis incidence in crossbred ewes. J. Anim. Sci. 49, 410-417.
Izadifard J. and Zamiri M.J. (1997). Lactation performance of two Iranian fat-tailed sheep breeds. J. Dairy Sci. 24, 69-76.
Marie-Etacelin C., Casu S., Aurel M.R., Barillet F., Carta A., Deiana S., Jacquin M., Pailler F., Porte D. and Tolu S. (2002). New tools to appraise udder morphology and milk ability in dairy sheep. CIHEAM-Options. Mediterannes. 55, 71-80.
Makovicky P., Nagy M. and Makovický P. (2014). The comparison of ewe udder morphology traits of Improved Valachian, Tsigai, Lacaune breeds and their crosses. Origin. Sci. Pap. 64(2), 86-93.
Makovicky P., Nagy M. and Makovický P. (2013). Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses. Chilean J. Agric. Res. 73, 4.
Martinez M.E., Calderon C., de la Barra R., de la Fuente L.F. and Gonzalo C. (2011). Udder morphological traits and milk yield of Chilota and Suffolk down sheep breeds. Chilean J. Agric. Res.71, 90-95.
Onder H., Arı A., Sezen O., Eker S. and Tufekci H. (2011). Use of image analysis in animal science. J. Inf. Techol. Agric. 1, 1-4.
Sadeghi S., Rafat S.A., Ghaderi Zefrei M., Khaligh F., Rostami K.H., Bohlouli M., BahraniBehzadi M. and Mohaghegh M. (2013). Factors affecting external and internal mammary morphology traits and assessment of their interrelationships with milk yield in Lori Bakhtiari breed ewes. Livest. Res. Rural. Dev. 25, 3.
SAS Institute. (2002). SAS®/STAT Software, Release 9.2. SAS Institute, Inc., Cary, NC. USA.
Yakubu A., Salako A.E., Imumorin I.G., Ige A.O. and Akinyemi M.O. (2010). Discriminant analysis of morphometric differentiation in the west African Dwarf and Red Sokoto goats. South African J. Anim. Sci. 40(4), 381-387.
