Revista de Producción Animal https://revistas.reduc.edu.cu/index.php/rpa <p>Publicación cuatrimestral, arbitrada y bilingüe (español e inglés). Comenzó a circular en el año 1985, dirigida por la Facultad de Ciencias Agropecuarias y publicada por Ediciones Universidad de Camagüey. Los grupos temáticos que abarca son: manejo y alimentación; salud animal; genética y reproducción; acuicultura; biotecnología; economía y mecanización agropecuaria. Su principal misión es divulgar los avances científico-técnicos de la producción animal, con artículos de elevado rigor que impacten a la comunidad científica y ofrezcan vías para la solución de problemas prácticos. La Revista de Producción Animal no cobra ningún tipo de cuota o cargo por envío, procesamiento y publicación. Además, no posee ninguna política de exención de pago. Asume la <a href="https://creativecommons.org/licenses/by-nc/4.0/deed.es">Licencia Creative Commons Atribución-NoComercial 4.0</a></p> Ediciones Universidad de Camagüey. es-ES Revista de Producción Animal 0258-6010 Effect of Efficient Microorganisms on Bioproductive Indicators of Pre-fattening Pigs https://revistas.reduc.edu.cu/index.php/rpa/article/view/e2796 <p><strong>Background:</strong> At present, additives are used as an alternative to increase animal productive yields. The aim of this paper was to evaluate the effect of efficient microorganisms on bioproductive indicators of pre-fattening pigs.</p> <p><strong>Methods:</strong> A total of 80 Yorkshire/Landrace x CC21 animals (38 days old and 7.8 kg) were used under a completely randomized design in four groups of 20 animals each: control; treatment 1 (60 mL EM/5 kg of feed); treatment 2 (same as treatment 1, plus 1 mL EM/5 L of water); and treatment 3 (1 mL EM/5 L of water). The initial and final weights, weight gain, mean daily gain, food conversion, mortality, morbidity, and viability were evaluated for 49 days. The results were compared by covariance analysis, with IW as covariable; multiple comparison tests were made for comparison of means.</p> <p><strong>Results:</strong> The final weight, weight gain, mean daily gain, and food conversion showed significant differences (P≤0.05) between the treatments and the control, with the exception of mean daily gain in the third treatment. Mortality, morbidity, and viability were significantly different in the three groups treated in relation to the control.</p> <p><strong>Conclusions:</strong> The best results were observed in the first treatment, thus the inclusion of efficient microorganisms in the diet of pre-fattening pigs improved the bioproductive indicators.</p> Alex Valdés Suárez Víctor Manuel Álvarez Villar Alain Legrá Rodríguez Narcys Margarita Bueno Figueras ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 2019-06-17 2019-06-17 31 2 An Update in Helminth Fauna and Other Equine Parasites in Cuba https://revistas.reduc.edu.cu/index.php/rpa/article/view/e2795 <p class="resuingls">Understanding of parasitic diseases begins by knowing the species of a population. Accordingly, information to identify the equine helminth faunas of Cuba was re-collected due to the gradual loss of data caused by deterioration of the printed scientific literature. These parasitic populations were first identified by Doctor Idelfonso Pérez Vigueras during the first half of the <span style="font-variant: small-caps;">21<sup>st</sup></span> Century. Further studies were conducted on horse populations in different provinces. Currently, 34 helminths have been properly reported, including nine benzimidazole-resistant species of cyathostomes in several herds. As a result of a large number of nematodes described in the international scientific literature, and due to the insufficient studies made in Cuba, the equine helminth faunas probably include a larger number of species. Hence, further comprehensive studies should be conducted on this topic.</p> Karel Gómez-Cabrera Josmel Salas-Romero Zaúl Gutiérrez Lastra José Barreto Mara L Gutiérrez Liliana Sorís Amílcar Arenal ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 2019-06-17 2019-06-17 31 2 Main Reproductive Indicators and Environmental Factors that Affect Siboney and Mambi de Cuba Cows at a Breeding Company in Central Cuba https://revistas.reduc.edu.cu/index.php/rpa/article/view/e2794 <p>&nbsp;</p> <p><strong>Background:</strong> The association of trait heritability with milk production, breeding, and longevity, was thoroughly studied in the past decade. However, the efficiency of productive and reproductive performance is determined by the action of environmental factors and inappropriate husbandry. Therefore, the main reproductive indicators and environmental factors affecting cow genotypes <em>Cuban Siboney </em>and<em> Cuban Mambí</em> were evaluated at a genetic breeding company in central Cuba.</p> <p><strong>Methods:</strong> The individual records of 618 females were processed between 2007 and 2010 (358 <em>Mambí de Cuba</em> from six different herds, and 260 <em>Siboney de Cuba</em> from four farms). The calving-first insemination service (CFIS) intervals, the calving-gestation (CG) interval, and the calving interval (CI) were determined. The effects of various factors on the reproductive indicators were estimated using a general linear model.</p> <p><strong>Results:</strong> The farm factor had a significant influence (P&nbsp;<em>&lt;&nbsp;</em>0.05) on CFIS, CG, and CI in both genotypes. Calving years had a significant effect (P&nbsp;&lt;&nbsp;0.05) on CFIS, CG, and CI, with the best results in 2009 and 2010. The best calving quarter for reproductive indicators was the July-August-September period, with a significant influence (P&nbsp;&lt;&nbsp;0.05) on CFIS, CG, and CI, in <em>Mambi de Cuba</em>, whereas <em>Siboney de Cuba</em> influenced the CFIS.</p> <p><strong>Conclusions:</strong> The two genotypes showed a remarkable deterioration of the reproductive indicators evaluated, particularly influenced by farm, calving year, and calving quarter.</p> Juan Ramón García-Díaz Ernesto Noval-Artiles Reinaldo Quiñones-Ramos Alcides Pérez-Bello Miguel Hernández-Barreto ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 2019-06-17 2019-06-17 31 2 Possible Underestimation of Canine Leptospirosis Incidence in Camagüey, Cuba https://revistas.reduc.edu.cu/index.php/rpa/article/view/e2797 Guillermo Barreto Argilagos Herlinda de la Caridad Rodríguez Torrens Tatiana García Casas **, Roberto Vázquez Montes de Oca ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 2019-06-17 2019-06-17 31 2