Investigation of the effect of Tribulus terrestris extract on some characteristics of the reproductive capacity of guinea fowl

Abstract

The effect of Bulgarian product Vemoherb-T (dry extract of Tribulus terrestris) on some characteristics of the reproductive capacity of Guinea fowl (Numida meleagris) was studied. A trial was conducted with 30 Pearl-gray Guinea fowls, at the age of 32 weeks, divided in two groups, 12 female and 3 male each. The birds from the two groups were fed the same mixture. The experimental group received the tested product once daily in a dose 10 mg/kg body weight for 12 weeks. The laying intensity, egg morphology and fertility, the weight of testes and ovaries were controlled. It was found a higher laying intensity (P<0.05), similarly higher egg weight (P<0.001), yolk weight (P<0.01), left testes weight (P<0.05) and egg fertility in the experimental group. No significant differences about egg white weight and yolk color between the both groups were found.Uticaj bugarskog proizvoda Vemoherb-T (suvi ekstrakt biljke Tribulus terrestris) na neke reproduktivne osobine morki (Numida meleagris) je bio predmet istrazivanja. Ogled je izveden na 30 biserno-sivih morki u uzrastu od 32 nedelje, koje su bile podeljene na dve grupe, 12 zenki i 3 muzjaka u svakoj grupi. Ptice iz obe grupe su dobijale obrok koji se sastojao od iste smese. Eksperimentalna grupa je dobijala proizvod koji se testirao, jednom dnevno u dozi od 10 mg/kg telesne mase u trajanju od 12 nedelja. Intenzitet nosivosti, morfologija jaja i plodnost, tezina testisa i jajnika su kontrolisani. Utvrdjeno je da je nosivost bila veca (P<0.05), kao i tezina jaja (P<0.001), tezina zumanceta (P<0.01), tezina levih testisa (P<0.05) i plodnost kod grla iz eksperimentalne grupe. Nije utvrdjena signifikantna razlika kod vrednosti tezine belanceta i boji zumanceta izmedju dve grupe.