Examinando por Autor "Ruíz Chamorro, José Antonio"

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Morphometric and phaneroptic characteristics of creole goats in the dry forest of Peru
(UNEMAT, 2025-04-21) Acosta Granados, Irene Carol; Carrero Flores, Jhonatan Enrique; Acosta Vidaurre, Rogelio; Cruz Luis, Juancarlos Alejandro; Ruíz Chamorro, José Antonio
The study aimed to describe morphometric and phaneroptic parameters in goat herds from the northern region of Lambayeque, Peru. A total of 295 goats over two years old, without evidence of crossbreeding with specialized breeds, were used. For each animal, 19 morphometric and eight phaneroptic measurements were recorded, and zoometric indices were calculated using a scale, measuring tape, and zoometric stick. This was performed using R software version 4.3.1. The results showed an average live weight of 41 ± 7.5 kg and a proportionality index of 99.6, highlighting their suitability for meat or dual-purpose production (IDT: 13.4, ICO: 88.7), adapted to the local environment. Regarding phaneroptic characteristics, monochromatic coat colors predominated in 55.6% of the animals, 43.7% were hornless (72.7% of the horns observed were parallel), 20.7% had beards, and 10.5% presented wattles. Additionally, 14.7% had supernumerary teats, and 46% of males displayed testicular bifurcation. In conclusion, the Creole goat of the Dry Forest in northern Peru is medium-sized, with robust limbs and a meat-production aptitude, as reflected by the proportionality index. It is also characterized by predominantly dark coats and parallel horns when present. These features demonstrate their adaptation to this environment and their potential for meat production.
Production and nutritional value of milk from Creole goats fed with different levels of sweet potato vine flour (Ipomoea batata)
(Network for the Veterinarians of Bangladesh, 2026-06-22) Trillo Zárate, Fritz Carlos; Sessarego Davila, Emmanuel Alexander; Acosta Granados, Irene Carol; Ruíz Chamorro, José Antonio; Rodríguez Vargas, Aníbal Raúl; Cruz Luis, Juancarlos Alejandro
Objectives: In South America, goats largely depend on natural pastures, which often lack adequate nutrition. This innovative study ventured into uncharted areas by examining the potential of incorporating sweet potato vine flour (SPVF) into goat diets, specifically focusing on its effects on both the quantity and quality of milk produced. Materials and Methods: A carefully monitored cohort of twelve female Creole goats, aged between 2 and 3 years, participated in a sophisticated completely randomized factorial design study. The research assessed varying levels of SPVF inclusion—spanning from the control group to significant incorporations of 2.5%, 5.0%, and 7.5%—observed meticulously over an eight-week period. Results: The primary variables under detailed examination included daily milk yield, body weight, and milk quality. The latter underwent precise evaluation utilizing the advanced Milko Scan “FOSS”. Notably, the highest milk yield of 411 ± 7.92 ml/day was recorded at the 7.5% flour inclusion level, resulting in a statistically significant increase (p < 0.05) compared to the control group. Interestingly, an inclusión level of just 2.5% significantly enhanced the protein content to 3.84 ± 0.0159% and increased lactose levels to 4.54 ± 0.108%, with significant deviations in protein levels observed (p < 0.05). Conclusions: SPVF improved milk production, but over 5% altered nutrition. Replacing corn with discarded sweet potato tubers is key for boosting milk production for small-scale goat farmers in Perú.