Productive parameters, morphology and microbiology of eggs produced by Hy-Line Brown, Novogen, Rhode Island Red and Sex Link hens

 

Đã lưu trong:
Chi tiết về thư mục
Nhiều tác giả: Chavarría Zamora, Sianny, Chacón Villalobos, Alejandro, WingChing Jones, Rodolfo, Zamora Sanabria, Rebeca
Định dạng: artículo original
Trạng thái:Versión publicada
Ngày xuất bản:2021
Miêu tả: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.
Quốc gia:Portal de Revistas UNED
Tổ chức giáo dục:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Ngôn ngữ:Español
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/3459
Truy cập trực tuyến:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3459
Từ khóa:Egg
Hen housing systems
Morphology
Production
Microbiology
Huevo
Alojamiento para gallinas
Morfología
Producción
Microbiología