Effects of warm season supplementary feeding on the milk performance of lactating yaks grazing on natural grassland in an alpine pastoral area

• Weimazhang, 
• Cirenquzong, 
• WANG Shiping, 
• YANG Zhiyong, 
• ZHANG Yuan, 
• Nanji, 
• XIE Zhengxin, 
• Cuose, 
• YANG Ying, 
• ZHANG Guotai, 
• DORJI tsechoe