Effect Of Bee Pollen Additive On The Sperm Quality And Blood Biochemical Indexes Of New Yangzhou Cocks

Seventy-five 22-week-old NewYangzhou chicken were used to study the effect of bee pollen on the sperm quality, immune function and blood biochemical indexes. The cocks were randomly divided into five groups. The first group was fed on the basal diet. The second and the third group were given 1% and 2% additive bee pollen based on the first basal diet, respectively. The fourth and the fifth group were given 1% and 2% additive bee pollen based on the second basal diet that had 2% bee pollen. The first and the second basal diet were same in energy and protein.1, The result showed that there had no significant difference in growth between the five group cocks (P>0.05), the body weight of the first group cocks was the lowest, and the body weight of all the third and the fifth group cocks (with 2% additive bee pollen) was higher than that of the second and fourth group (with 1% additive bee pollen) (P<0.05), which showed that the level of additive bee pollen had significant effect on the growth of cocks.2, The sperm of the first group cocks was less active than the other groups (P<0.05), while the sperm abnormality was the highest (P<0.05). The sperm motility of third and fifth group and the second basal diet were higher than that of other groups and diet, which showed that the level of additive bee pollen was good at improving reproductive performance.3, Sperm quantity had a high correlation with sperm motility, available sperm, sperm abnormality and density, which showed that it was an important index to detect sperm quality.4, Serum antibody titre to Newcastle disease virus increased during 30 days after injection and decreased after 30 days, serum antibody titre of the first group increased more slow than that of the other groups (P>0.05) from day 0 to 30, and decreased more quickly after 30 days, all of which showed that bee pollen had positive effect on prolonging immunity time and immune function. At the same time, similar effects were observed on serum protein (the total protein, serum albumin, serum globulin).The serum testosterone (T) concentration of the first group was lowest among the five groups (P<0.01), which showed that bee pollen can benefit to secreting androgen, triiodothyronine (T3) concentration in serum had positive correlation with sperm motility and available sperm (P<0.05), thyroxine (74) concentration of the third and fifth group was higher than other groups (P<0.05), which showed that bee pollen can enhance the ability of cocks in response to stressors.