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1)bull,ÖÖÅ£

2)crossbred cattle,ÔÓÖÖÅ£

3)purebredcattle; pedigreecattle,´¿ÖÖÅ£

4)vaccination,ÖÖÅ£¶»

5)cattalo,ÔÓÖÖÅ£

6)Native cattle breeds,µØ·½Æ·ÖÖÅ£

7)Datong Cattle Farm,´óͨÖÖÅ£³¡

8)simental crossing-breed cattle,Î÷ÃÅËþ¶ûÔÓÖÖÅ£

9)crossbred Holsteins bull,ºÉ˹̹ÔÓÖÖÅ£

10)vaccinate,v. ½ÓÖÖ;ÖÖÅ£¶»

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Grassland types and their vertical distribution on the Datong Cattle Farm in Qinghai, China;

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The study of structure characteristic and biomass of bush-land in Datong cattle farm of Qinghai province;

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Investigation of grassland resource was carried out in Datong cattle farm in Aug.

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The Effect of polyethers ionophore Additive on Gain of ª¤Wether Lamband crossbred Holsteins bull;

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