兔用饲草适口性研究初探(二)

Primary Study on Palatability of Grass Used by Rabbit (Ⅱ)

兔可食用的主要饲草有189种,本次试验选用的是幼年和青年八点黑獭兔24只,体重为1750.4±369.9g,对28种饲草进行适口性研究。供试兔分A、B、C、D四组,每组6只,每批试验4种草,每组1种草,连续4d,第1天50g/兔,第2天100g/兔,第3天150g/兔,第4天150g/兔。其结果是13种饲草为适口性好,占46.4%,食草率在80%以上;6种饲草为适口性较好,占21.4%,食草率在70%～79%;4种饲草为适口性中等,占14.3%,食草率在60%～69%;5种饲草为适口性较差,占17.9%,食草率在50%～59%。本次试验确定了幼年和青年獭兔每天的最佳供草量为100g;对兔用饲草适口性定为好、较好、中等、较差和差5个等级;了解兔喂饲草的发育情况;查阅了兔用饲草的药用价值。为兔用饲草适口性、营养价值、药用价值、消化率等研究奠定了一定的基础,为广大养兔者合理利用饲草养兔提供科学依据。

There are 189 kinds grasses used by rabbits.In this study,twenty-four juvenil and young eight dot black rex rabbits the weight of which was 1750.4±369.9g,were used to study the palatability of twenty-eight kinds grass.Experimental rabbits were divided into four groups: A,B,C and D,every group had six rabbits.Four kinds grasses were study in every batch experiment for 4 days,one kind grass was used by every group.The diets for every rabbit was 50g grass the first day,100g grass the second day,150g grass the third and forth day.The results indicated that the palatability of thirteen kinds grass was good,occupying 46.4%,edible rate of which was more than 80%.The palatability of six kinds grass was very good,occupying 21.4%,edible rate of which was 70%-79%.The palatability of four kinds grass was middling,occupying 14.3%,edible rate of which was 60%-69%.The palatability of five kinds grass was very bad,occupying 17.9%,edible rate of which was 50%-59%.The best feeding grass of juvenil and young rabbit per day is 100g in this study and the palatability of grass used by rabbit was divided into five grades,good,very good,middling,very bad and bad,and the value of grass and the development of rabbit after feeding grass was know.The results can establish base for the study on palatability,nutritive value,value for drug and digestibility of other grasses,and provide science evidence for reasonable using grasses to feed rabbits.