Effect of ractopamine hydrochloride on growth promotion in guinea pigs ( Cavia porcellus )

Authors : İrene Citlalli ZUÑIGA-GALINDO, Jaime Alonso NAVARRO-HERNÁNDEZ, Shalaiko Christian CARLIN-VALDERRABANO, Julio Cesar SÁNCHEZ-LEMUS, İvan JUÁREZ-RODRÍGUEZ, Dinorah VARGAS-ESTRADA

Pages : 103-109

View : 13 | Download : 3

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :  Ractopamine hydrochloride insert ignore into journalissuearticles values(R); is commonly used in the livestock industry, mainly in pork and beef, to improve feed efficiency and productivity. In the present study, the use of R at different doses insert ignore into journalissuearticles values(20 ppm, 30 ppm, or 40 ppm); on growth performance and carcass characteristics of guinea pigs insert ignore into journalissuearticles values(male and female); was explored with a view to achieving greater use of this species for human consumption. Thirty-two clinically healthy guinea pigs at an average age of 5 weeks were used. The daily gain, feed over gain ratio, Kleiber ratio, carcass yield, and muscle thickness of the thigh in millimeters were measured. The results obtained were compared to a control group treated with only purified water, without R. Arithmetically, the measured variables showed benefits in the groups treated with R, with the results of Kleiber ratio and muscle thickness of the right thigh demonstrating statistical significance insert ignore into journalissuearticles values(P < 0.05);. In the present work, the noncastrated males treated with R exhibited a more positive effect than the females insert ignore into journalissuearticles values(P = 0.006);. The results suggest that the use of R as a growth promoter could benefit the productivity of guinea pigs for human consumption.
Keywords : Beta adrenergic agonist, Kleiber ratio, meat production