Suplementación de codornices japonesas (Coturnix coturnix japonia) con una emulsión en postura inicial durante estación invernal
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Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
El presente trabajo evaluó las respuestas productivas en el peso vivo, postura y conversión alimenticia en la primera etapa de postura de codornices utilizando suplementación energética con una emulsión en modalidad producto mínimo viable. Se utilizaron 180 codornices hembras asignadas aleatoriamente a un grupo control y tratamiento emulsión, ambos grupos recibieron dieta comercial (Performance®) para codornices en postura en la alimentación y el tratamiento se reemplazó un 4% de la dieta control por una emulsión. Cada tratamiento fue de tres jaulas (réplicas) con 30 aves cada una y el estudio se inició con 8 semanas de vida en la segunda semana de postura. Se realizó un período de acostumbramiento a los tratamientos de alimentación por 2 semanas con un período experimental de 12 semanas durante el invierno del año 2022. Se observó un mayor peso vivo final, ingesta diaria y mayor índice de postura con una menor conversión alimenticia por huevo en codornices suplementadas con emulsión. Los resultados fortalecen la estrategia de modificar la dieta para codornices en postura mediante la incorporación de grasa, como mecanismo para aumentar la concentración calórica. Los resultados observados validan la estrategia de aumentar el tenor energético mediante grasa dietaria como mecanismo para apoyar la termogénesis en codornices bajo condiciones de confort térmico invernal no controlado. Futuros estudios deben analizar el perfil de ácidos grasos en el plasma y huevos de codornices y las características de la dureza de la cáscara de los huevos, por la incorporación de la emulsión evaluada en el presente estudio.
The present work evaluated the productive responses in live weight, laying and feed conversion in the first stage of laying of quail using energy supplementation with an emulsion in minimum viable product mode. 180 female quails were used, randomly assigned to a control group and emulsion treatment. Both groups received a commercial diet (Performance®) for laying quails in feeding and the treatment replaced 4% of the control diet with an emulsion. Each treatment was three cages (replics) with 30 birds each and the study began at 8 weeks of age in the laying second week. A period of getting used to the feeding treatments was carried out for 2 weeks with an experimental period of 12 weeks during the winter of 2022. A higher final live weight, daily intake and laying index was observed with a lower feed conversion per egg. in quail supplemented with emulsion. The results strengthen the strategy of modifying the diet for laying quail by incorporating fat, as a mechanism to increase caloric concentration. The observed results validate the strategy of increasing energy content through dietary fat as a mechanism to support thermogenesis in quail under conditions of uncontrolled winter thermal comfort. Future studies should analyse the profile of fatty acids in the plasma and quail eggs and the characteristics of the hardness of the egg shell, due to the incorporation of the emulsion evaluated in the present study.
The present work evaluated the productive responses in live weight, laying and feed conversion in the first stage of laying of quail using energy supplementation with an emulsion in minimum viable product mode. 180 female quails were used, randomly assigned to a control group and emulsion treatment. Both groups received a commercial diet (Performance®) for laying quails in feeding and the treatment replaced 4% of the control diet with an emulsion. Each treatment was three cages (replics) with 30 birds each and the study began at 8 weeks of age in the laying second week. A period of getting used to the feeding treatments was carried out for 2 weeks with an experimental period of 12 weeks during the winter of 2022. A higher final live weight, daily intake and laying index was observed with a lower feed conversion per egg. in quail supplemented with emulsion. The results strengthen the strategy of modifying the diet for laying quail by incorporating fat, as a mechanism to increase caloric concentration. The observed results validate the strategy of increasing energy content through dietary fat as a mechanism to support thermogenesis in quail under conditions of uncontrolled winter thermal comfort. Future studies should analyse the profile of fatty acids in the plasma and quail eggs and the characteristics of the hardness of the egg shell, due to the incorporation of the emulsion evaluated in the present study.
Description
Tesis presentada para optar al título de Médico Veterinario
Keywords
Zootecnia (MEJORAMIENTO ANIMAL), Codornices - cría