En esta investigación se analizó 56 predios ganaderos afiliados a 3 asociaciones de productores. Donde, se evaluaron 08 criterios principales: gestión familiar con 07 indicadores, aspecto productivo con 4, enfermedades endémicas 6, manejo sanitario con 7, infraestructura con 7, alimentación con 4, reproducción y genética con 5 y manejo en general con 4 indicadores respectivamente, haciendo un total de 44. Estos conglomerados, se componen de 7 fincas (14%) en el primer grupo, 18 fincas (36%) en el segundo y 25 fincas (50%) en el tercero. Donde, se logró diferenciar tres tipos de sistemas productivos: intensivo (16% del total de fincas evaluadas), semi intensivo (40%) y extensivo (44%). Presentan en su totalidad ganado vacuno, complementado con componente agrícola 43% y con componente forestal un 74.50%. El promedio de tamaño de los fundos es de 30 ha, con una media de 22 vacunos...

The objective of the research was to evaluate three synchronization protocols for fixed-time artificial insemination (FTAI) in Bos indicus with Bos taurus crossbred cows. Forty-five cows of 5 ± 1.6 years were selected. The Jsynch treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α, estradiol cypionate plus eCG was applied, and the FTAI was performed at 48–52 hours after. Conventional treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α plus eCG was injected, and on day 9, estradiol benzoate was administered, and FTAI was performed at 30 hours. The Ovsynch treatment consisted of the application of GnRH, and on day 8, PGF2α was applied, on day 9, GnRH was applied again, and on day 10, FTAI plus GnRH was applied. The diagnosis of pregna...

Bovine fascioliasis in Peru is highly prevalent in almost all regions; however, there are few studies about its prevalence in the region of Amazonas. This research aimed to determine the prevalence and risk factors associated with fascioliasis from four livestock basins in the Amazonas region. A total of 941 bovine feces samples were analyzed and a prevalence of 52% was found. The highest prevalence was registered in females (53.9%), crossbred (58.6%), and producers with less than 50 animals (54.40%). The highest risk factor was for Brown Swiss (2.1), crossbreeds (2.4), heifer (4.1), females (1.4), and bovine that drinks water from streams (2.5) and waterhole (2.4). With the principal component analysis, 5 groups were identified, where the first explains that the area of the farm and the number of animals are related to the prevalence of fascioliasis. Group five indicated a relationship ...