Protein and energy self‐selection by turkey hens: Reproductive performance
| Autor: | D. M. Denbow, D. E. Emmerson, Ralph Michael Hulet |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Random allocation
Turkeys Food intake Protein diet Oviposition Reproduction media_common.quotation_subject Large white General Medicine Biology Protein intake Animal Feed Food Preferences Random Allocation Animals Animal Nutritional Physiological Phenomena Female Animal Science and Zoology Dietary Proteins Food science Energy Intake Food Science media_common |
| Zdroj: | British Poultry Science. 31:283-292 |
| ISSN: | 1466-1799 0007-1668 |
| DOI: | 10.1080/00071669008417259 |
| Popis: | 1. The influence of protein and energy self-selection on the reproductive performance of turkey hens was investigated. Large White turkey hens were fed on either a complete diet (185 g CP/kg, 11.30 MJ ME/kg) or were provided with a choice between a high protein-low energy diet (348 g CP/kg, 7.74 MJ ME/kg) and a high energy-low protein diet (81 g CP/kg, 13.39 MJ ME/kg). 2. Egg production, egg weight, and the fertility and hatchability of eggs produced were not significantly affected by the dietary treatments (P greater than 0.05). 3. While energy intake was not significantly different between groups, protein consumption decreased by approximately 40% (P less than or equal to 0.001) among self-selecting hens compared to hens fed on the complete diet. This resulted in a 10% (P less than or equal to 0.05) reduction in the food intake in the self-selecting birds. |
| Databáze: | OpenAIRE |
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