Abstract
Present study was carried out to estimates the genetic parameters of Baluchi sheep during the year 2015 at Bhagnari cattle Cum Baluchi Sheep Farm Usta Muhammad, Baluchistan. The recorded data including (lactation yield and lactation length) was collected for the period 2005 to 2014.The results of current study revealed that average milk yield and lactation length was found 95.1±11.122kg and 123.60±8.44days of Baluchi sheep. The results for heritability and correlation estimates for lactation yield and lactation length was observed 0.113, 0.126 and 0.26, respectively. There was positive and low heritability and correlation was worked out for lactation yield and lactation length. Due to low results heritability and correlation estimates of some performance traits of Baluchi sheep, it was concluded that improvement can be achieved by process of mass selection.
References
Tariq MM, Eyduran E, Bajwa MA, Waheed A, Iqbal F, Javed Y. Prediction of body weight from testicular and morphological characteristics in indigenous Mengali sheep of Pakistan: using factor analysis scores in multiple linear regression analysis. Int J Agri Bio 2012; 14: 590-594.
Uzmay C, Kaya I, Akbas Y, Kaya A. Effects of udder and teat morphology, parity and lactation stage on subclinical mastitis in Holstein cows. Turk J Vet Anim Sci 2003; 27: 695-701.
Panteli? VM, Petrovi? M, Aleksi? S, Sretenovi? L, Ostoji? Andri? D, Novakovi? Ž. Investigation of the genetic correlation between milk and fertility traits of calving cows of Simmental breeds. J Biotechnology in Animal Husbandry 2008; 24(5-6): 1-8. https://doi.org/10.2298/BAH0806001P
Abera H, Solomon A, Yosphe M. Genetic parameter estimates of pre-weaning weight of Thali goat breeds in Ethiopia. Inter J 3 Prod V 2011; 2(6): 84-91.
Usman C, Kaya I, Akbas Y, Kaya A. Effects of udder and teat morphology, parity and lactation stage on subclinical mastitis in Holstein cows. Turk J Vet Anim Sci 2011; 27: 695-701.
Becker WA. Mannual of Quantization Genetics (4th Ed.) Academic enterprises, Pullman, W.A USA, 1985; pp. 48-50.
Fernández G, Alvarez PS, Primitivo F, De La Fuente LF. Factors affecting variation of udder traits of dairy ewes. J Dairy Sci 1995; 78: 842-849. https://doi.org/10.3168/jds.S0022-0302(95)76696-6
Gallego L, Caja G, Torres A. Estudio de la tipología y característicasmorfológicas de lasubres de ovejas de razaManchegadesde el parto. In: 3rd International Symposium on Machine Milking of Small Ruminants. Sever-Cuesta, Valladolid, Spain 1983; pp. 100-116.
Rovai M. Caracteresmamariosqueafectan a la aptitud al ordeñomecánico de ovejas de raza Manchega y Lacaune (Morphological and physiological traits affecting the machine milkability of Lacaune and Manchega dairy ewes). Ph.D. Thesis. Universitat Autònoma de Barcelona. Barcelona, Spain 2001.
Marie-Etancelin C, Arhainx J, Aurel MR, Autran P, Bibe B, Jacquin M, Lagriffoul G, Pailler F, Porte D, Ricard E, Barillet F. Estimates of genetic parameters for milk flow kinetics during machine milking in frenchLacaune dairy sheep. 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France. Communication 2002; N° 01-51.
Bemji MN, Osinowo OA, Adebambo OA, Ozoje MO, Aina ABJ. Live weight changes during lactation and its relationship with milk off-take in West African dwarf and Red Sokoto goats intensively managed in the humid zone of Nigeria. Nig J Anim Prod 2006; 33(1 & 2): 145-150.
Makovicky, M. Milerski, M. Margetín, Makovický and M. Nagy. Genetic parameters for the size of udder cisterns in ewes diagnosed by ultrasonography among breeds: Improved Valachian, Tsigai, Lacaune and their crosses. Journal of Animal Science 2010; 23(1): 219-222.
Marnet PG, Combaud JF, Dano Y. Relationships between characteristics of the teat and milkability in Lacaune ewes. In: Milking and milk production of dairy sheep and goats. F. Barillet and N.P. Zervas (Eds.), EAAP Publication No. 95, Wageningen Pers., Wageningen 1999; pp. 41-44.
Saiyed LH, Patel JM. Biometrics of udder in relation to milk production in Jersey and Kankrej crossbreds. Anim Breeding Abst 1989; 57(11): 917.
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Copyright (c) 2017 Zahid Qadir, Hubdar Ali Kaleri, Rameez Raja Kaleri, Asma Kaleri, Mushtaque Ahmed Jalbani, Azhar Hussain Kaleri, Faisal Ashraf, Abdul Kabir , Ali Ghulam Bugti