Production of European quail (Coturnix coturnix) and ultrasound technique to analyze muscle development
| Autor: | Santos, Thailine Santana |
|---|---|
| Přispěvatelé: | Oliveira Júnior, Gregório Murilo de, Brito, Claudson Oliveira |
| Jazyk: | portugalština |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Repositório Institucional da UFS Universidade Federal de Sergipe (UFS) instacron:UFS |
| Popis: | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The livestock industry objective to have a precise and objective method to assess the economically important characteristics of the animals while they are still alive and to determine the value of the carcass. Real-time ultrasonography has already been used in large and medium-sized animals, but in quails research are still few. The objective of this study was to evaluate the performance, body development and carcass quality of European quails submitted to diets with different levels of metabolizable energy, as well as the carcass composition using the ultrasound apparatus. Were used 270 European quail (Coturnix coturnix), mixed lot, in the period from 7 to 49 days of age. The birds were housed in cages and distributed in a completely randomized design within three treatments, five replicates and 18 birds per experimental unit. The experimental treatments consisted of three levels of metabolizable energy Phase I- 7 to 21 days old, contend diets energy levels of 2,700; 2,900 and 3100 Kcal/kg and Phase II – 21 to 49 days old, contend diets 2900; 3050 and 3200 kacl/kg of metabolizable energy. Were evalueted the feed intake, weight gain and feed conversion, as well as organ development and carcass quality using the Tukey test at 5% probability. Three ultrasonographies were also performed at 21; 35 and 49 days old, two readings were performed in the ventral portion of the Pectoralis major muscle: a reading was performed in the transverse position of the muscle and another in the longitudinal position, then the birds were slaughtered for organ quantification and body composition. The feed intake was reduced (P |
| Databáze: | OpenAIRE |
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