Rendimientos productivos, morfología y microbiología de los huevos de gallinas Hy-Line Brown, Novogen, Rhode Island Red y Sex Link
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Chavarría Zamora, Sianny Valeria
Chacón Villalobos, Alejandro
WingChing Jones, Rodolfo
Zamora Sanabria, Rebeca
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Abstract
Introducción: La producción comercial de huevos requiere comprender cómo se ve afectada la calidad del huevo por condiciones de producción, sistemas de alojamiento, bienestar animal, edad de las aves, y raza. Objetivo: Describir las características del huevo de cuatro razas de pollos y gallinas en Costa Rica. Métodos: En 2017 estudiamos la producción de huevos de cuatro razas de gallina en Turrialba, Costa Rica, registrando las condiciones de producción, rendimiento y morfología y microbiología del huevo (Salmonella spp., Escherichia coli, coliformes totales y recuento aeróbico total). Resultados: Las razas difirieron en rendimiento, y el peso del huevo y grosor de la cáscara aumentaron con la edad. Solo el sistema de jaulas y las gallinas con acceso a pastoreo tenían niveles aceptables de contaminación microbiológica. Conclusiones: Hay diferencias entre todas las características productivas y morfológicas evaluadas para el huevo, cuando se consideró el alojamiento, la edad y la genética.
Introduction: Commercial egg production requires an understanding of how egg quality is affected by production conditions, housing systems, animal welfare, bird age, and breed. Objective: To describe egg characteristics of four chicken breeds in Costa Rica.Methods: We studied the egg production of four breeds, in 2017 in Turrialba, Costa Rica, recording production conditions, yield, and egg morphology and microbiology (Salmonella spp., Escherichia coli, total coliforms and total aerobic count). Results: Breeds differed in yield, and egg weight and shell thickness increased with age.Only the cage system and free-range hens had acceptable levels of microbiological contamination.Conclusions: There were differences between all the productive and morphological characteristics evaluated for the egg, when housing, age and genetics were considered.
Introduction: Commercial egg production requires an understanding of how egg quality is affected by production conditions, housing systems, animal welfare, bird age, and breed. Objective: To describe egg characteristics of four chicken breeds in Costa Rica.Methods: We studied the egg production of four breeds, in 2017 in Turrialba, Costa Rica, recording production conditions, yield, and egg morphology and microbiology (Salmonella spp., Escherichia coli, total coliforms and total aerobic count). Results: Breeds differed in yield, and egg weight and shell thickness increased with age.Only the cage system and free-range hens had acceptable levels of microbiological contamination.Conclusions: There were differences between all the productive and morphological characteristics evaluated for the egg, when housing, age and genetics were considered.
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Keywords
Huevo, Alojamiento para gallinas, Morfología, Producción, Microbiología, Egg, Hen housing systems, Morphology, Production, Microbiology
Citation
https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3459