Physiology Dissertation | Sahiwal Cattle Breed

"A significant national genetic resource of Pakistan is the Sahiwal cattle breed. Originated and developed in Pakistan, this breed is now reported to be present in 29 countries (FAO, 2007). Population of this breed is diminishing because of intensive crossbreeding for dairying which remains a main threat to its survival (Payne and Hodges, 1997). It is necessary to improve fertility rates in our national breeds, by the use of insemination with frozen-thawed semen (Barbas and Mascarenhas, 2009)."

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