B. B. Saleh, D. J. U. Kalla, S. T. Mbap, U. D. Doma


An experiment was conducted to determine the effect of varying dietary protein levels on semen traits of FUNAAB – Alpha cocks. A total of 16 sexually matured cocks reared in individual cages were allotted to four treatment groups in two blocks with each cock serving as replicate in each group. Four experimental diets were formulated as follows; Standard exotic chicken diet (Control), high energy low protein (HELP), high energy high protein (HEHP) and low energy high protein (LEHP). The experimental diets and water were offered ad libitum throughout the 34-week experimental period. Semen samples were collected weekly by abdominal massage technique. Semen volume, colour, pH, motility, viability and morphology were determined. Total semen plasma protein, chloride, sodium and potassium were also analysed according to the following methods; Lowry, Volhard and flame photometry respectively. Results of the study showed that dietary treatment influenced (P<0.001) semen volume where HEHP was highest (0.90ml). The LEHP group had the highest pH and mass activity. Total motility was highest in the HEHP group (84.95%). LEHP had higher percentages of dead and abnormal sperm cells (11.24 and 3.36% respectively). The mean semen total plasma protein was 14.50, 8.50, 14.00 and 16.00mmol/L for Control, HELP, HEHP and LEHP respectively. Dietary treatment significantly influenced seminal plasma sodium and potassium. No significant difference was observed among treatment means for chloride. It was concluded that specific cock diets with as low as 2600Kcal/kg ME and 13% CP can be fed to FUNAAB – alpha cocks without adverse effects on semen traits.


FUNAAB-Alpha roosters, nutrition, sperm quality, seminal plasma chemistry

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