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Metabolisable energy partition for Japanese quails.

E P Silva1, D M C Castiblanco1, S M B Artoni1

  • 1Department of Animal Sciences, Universidade Estadual Paulista, College of Agriculture and Veterinary Sciences, Via de Acesso Professor Paulo Donato Castelane s/n, 14883-900, Jaboticabal, SP, Brazil.

Animal : an International Journal of Animal Bioscience
|June 30, 2020
PubMed
Summary
This summary is machine-generated.

This study re-evaluated energy partitioning in Japanese quails, developing a new model for energy intake based on body weight, weight gain, and egg production. This model aids in optimizing nutrition for commercial quail farms.

Keywords:
egg productionegg weightevaluation of modelsmaintenanceretained energy

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Area of Science:

  • Animal Nutrition
  • Poultry Science
  • Energy Metabolism

Background:

  • Accurate energy partitioning models are crucial for optimizing feed recommendations in commercial poultry production.
  • Previous models for Japanese quails may not fully account for variations in growth and egg production phases.
  • Understanding energy allocation is key to improving efficiency in quail farming.

Purpose of the Study:

  • To re-evaluate and refine the energy partitioning model for Japanese quails during the egg production phase.
  • To establish precise energy requirements for weight gain and egg production in quails.
  • To develop a practical and adaptable model for commercial quail operations.

Main Methods:

  • A dose-response study utilizing a dilution technique to modify retained energy (RE) in quails.
  • Experiment involved 300 Japanese quails over 10 weeks, with varying dietary metabolisable energy levels.
  • Energy utilization efficiencies (kt and ko) were estimated to derive the energy partitioning model.

Main Results:

  • Developed a new energy partitioning model for Japanese quails: MEI = 569.8 × BW0.67 + 22 × WG + 13 × EM.
  • Quantified metabolisable energy intake (MEI), egg mass (EM), and retained energy (RE) in relation to body weight (BW) and weight gain (WG).
  • Estimated utilization efficiencies for maintenance, growth, and egg production.

Conclusions:

  • The study provides a validated, flexible energy partitioning model for Japanese quails.
  • The model facilitates accurate recommendations for energy intake based on BW, WG, and EP.
  • This research offers practical tools for technicians and poultry companies to enhance quail farm management.