Effect of growth stage on the quality of hay and silage of Amaranthus hypochondriacus

• MA Jian, 
• SUN Guoqing, 
• Cardela ·Kurban, 
• ZHAO Shangshang, 
• QIU Haori, 
• Senbati ·Heilimubuick, 
• LI Shengli, 
• YU Xiong