Incidencia de las fases lunares en los diferentes métodos de castración en cuyes (Cavia porcellus) en las etapas de crecimiento y engorde en la raza andina mejorada, en el cantón Morona

Abstract

Puberty and the increase of testosterone in male guinea pigs generates conflicts between these animals, causing skin damage and a decrease in growth; consequently, this represents an economic decrease for the producer by reducing the commercialization species. Therefore, it is necessary to castrate the guinea pig. The aim of this work was to analyze the incidence of the lunar phases and the different castration methods such as surgical method, physical method and chemical methods with lactic acid at 5% in doses of 0.20 ml per testicle and iodine tincture at 2% in doses of 0.1 ml per testicle, intra testicular route. These methods were applied in improved Andean guinea pigs, in Morona canton, province of Morona Santiago. For the research, 32 guinea pigs were used, distributed in four treatments and two repetitions in each lunar phase, that is, eight guinea pigs in each phase. The experimental results were analyzed under a completely randomized design and the comparison of means according to Tukey (p<0.05). The experimental results showed better results with the chemical castration method with iodine dye, achieving an average final weight of 0.75 kg and a weight gain at the end of the experimental design of 0.35 kg. On the other hand, the animals that were castrated in the lunar phase, fourth crescent, registered an average final weight of 0.74 kg, with a weight gain of 0.34 kg, green forage consumption of 4.65 kg, dry matter consumption of 1.86 kg and feed conversion of 1.86, which differs significantly from the rest of the treatments. In addition, a cost benefit of 1.14 was registered; therefore, there is an economic profitability for the producer. It is concluded that the lunar phase does affect castration and post-castration development of the guinea pig.