Thursday, May 9, 2024
饲料中不供给机体能量的营养物质是()。A、蛋白质B、维生素C、脂肪D、碳水化合物...
Thursday, February 22, 2024
Thursday, February 22, 2024
脑神经包括()等。A、坐骨神经B、迷走神经C、脊神经D、交感神经...
Thursday, February 22, 2024
Thursday, March 16, 2023
金鱼是由()鱼类经人工培育而形成的。A、鲤鱼B、鲫鱼C、青鱼D、编鱼...
Saturday, April 29, 2023
属于鸟纲鸡形目雉科的动物是()。A、细嘴松鸡B、雷鸟C、红腹角雉D、水雉...
Saturday, April 29, 2023
Thursday, May 9, 2024
未吃上初乳的初生动物,可采取()方式使其获得抗体。A、喂鲜牛奶B、喂牛初乳C、皮下注血浆D、喂奶粉...
Sunday, October 22, 2023
Tuesday, April 9, 2024
及灵长类动物的胎盘为()。A、弥散型胎盘B、子叶型胎盘C、带状胎盘D、圆盘状胎盘...
Sunday, November 12, 2023
Sunday, October 22, 2023
下列()不属于饲料的消化方式。A、物理性消化B、生物性消化C、化学性消化D、体外消化...
Thursday, May 9, 2024
Tuesday, April 9, 2024
Monday, March 13, 2023
下列()鸟繁殖时不用暗巢。A、金丝雀B、金山珍珠C、灰文鸟D、五彩文鸟...
Monday, May 8, 2023
狮、虎饲料量的一般规律为()。A、低纬度地区的狮、虎比高纬度地区的狮、虎饲料量大。B、老年个体比亚成体饲料量大。C、春季的饲料量高于夏季的饲料量。D、冬季的饲料量高于秋季的饲料量...
Tuesday, April 9, 2024
Monday, April 3, 2023
缺乏锰元素会引起()特殊症状。A、软骨病B、滑腱症C、骨质疏松症D、角弓反张...
Sunday, November 12, 2023