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Abstract
7KHSULPDU\REMHFWLYHRIWKLVVWXG\ZDVWRLPSURYHWKHUHSURGXFWLYHHI¿FLHQF\RILQGLJHQRXVFDWWOH of Azad Jammu and Kashmir at Livestock Development Research Center (LDRC) by crossing with European breeds. The indigenous heifers were impregnated with Jersey semen and F1 crossbred were produced. The F1 offspring were crossed among themselves (inter se mating) to obtain the F2 offspring and simultaneously the F1 cows were crossed with Friesian bull to produce three-breed crossbred cows. The number of cows for each group were 37 for indigenous, 25 for F1 (Indigenous × Jersey) cross, 8 for F2 (F1 × F1 ) cross and 14 for F1 × )ULHVLDQFURVV7KHKLJKHVWEUHHGLQJHI¿FLHQF\ZDVREVHUYHGLQ)1 (93.68 ± 1.85 %) and F2 (93.71 ± 2.74 %) DQGLQFUHDVHGKLJKO\VLJQL¿FDQWO\ 3 FRPSDUHGWRLQGLJHQRXVFRZV  7KHPHDQ EUHHGLQJHI¿FLHQF\RI)1 î)ULHVLDQ  GLGQRWGLIIHUVLJQL¿FDQWO\IURPWKDWRILQGLJHQRXVFRZV 3  7KH-HUVH\EUHHGZDVIRXQGWREHVXLWDEOHIRULPSURYLQJWKHEUHHGLQJHI¿FLHQF\RILQGLJHQRXV cows of hilly areas of Azad Jammu and Kashmir.

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Samina Jalali,, Beenish Shahid,, Sajjad Aslam Shami, Muhammad Ijaz Khan,. (2014) Breeding Efficiency of Indigenous × Jersey, Indigenous × Jersey × Friesian Crossbred Cows at Livestock Development Research Centre, Muzaffarabad, Azad Jammu and Kashmir, , Volume 51, Issue 4.
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Proceedings of the Pakistan Academy of Sciences
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Volume 51
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