Порівняння методів
Переглядайте обрані методи поруч; рядки з відмінностями підсвічено.
| Моделювання кривих росту у тваринництві× | Коефіцієнт конверсії корму× | |
|---|---|---|
| Галузь | Зоотехнія | Зоотехнія |
| Родина | Process / pipeline | Process / pipeline |
| Рік появи≠ | 1970s | 1950s |
| Автор методу≠ | Animal Biologists and Agricultural Statisticians | Animal Nutrition Scientists |
| Тип≠ | statistical modeling | efficiency calculation and analysis |
| Основоположне джерело≠ | Menchaca, M. A., & Chase, C. C. (2002). Body measurements and condition scores for beef cattle. Veterinary Clinics of North America: Food Animal Practice, 19(3), 387-405. link ↗ | Blaxter, K. L. (1989). Energy metabolism in animals and man. Cambridge University Press. link ↗ |
| Інші назви | growth model fitting, trajectory analysis, growth kinetics modeling | feed efficiency ratio, gain-to-feed ratio, FCR analysis |
| Пов'язані | 3 | 3 |
| Підсумок≠ | Growth curve fitting is the mathematical modeling of animal body weight and size changes over time. Developed by animal biologists and statisticians in the 1970s-1980s (Fitzhugh), the method applies nonlinear regression to weight data, extracting parameters that characterize growth rate, time to maturity, and asymptotic mature weight. Curve fitting supports comparisons of genetics, nutrition, and management effects on growth efficiency and enables prediction of market weight and slaughter timing. | Feed conversion ratio (FCR) is a key metric of nutritional efficiency in livestock, measuring the amount of feed consumed relative to animal growth or product output. Developed by animal nutrition scientists in the mid-20th century, FCR quantifies how efficiently livestock convert dietary nutrients into meat, milk, eggs, or other products. It is a primary driver of profitability in commercial animal agriculture and a focus of genetic selection in breeding programs. |
| ScholarGateНабір даних ↗ |
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