slugFuzzy modeling as a tool for the prediction of daily weight gain in broiler chickens
Journal Title: Journal of Animal Behaviour and Biometeorology - Year 2016, Vol 4, Issue 2
Abstract
Many varied empiric mathematical models have already been developed to predict broiler chicken growth. However, newly developed tools, such as fuzzy modeling, may facilitate resolutions of problems. The objective of this research is to develop a computational mathematical model based on fuzzy logic to predict the daily weight gain (GPD) of broiler chickens, and to compare it to statistical models from the literature. Our results showed that a standard deviation of 0.9 g.day-1 was estimated using fuzzy model compared to 2.02 g.day-1 from the empirical model. However, the standard deviation was 8.6 g.day-1 when field data was used in the fuzzy model, and 9.8 g.day-1 for the empirical model. The proposed fuzzy modeling showed better precision compared to the empiric model. However, the results were not as good when experimental field data was used (R² = 0.5677).
Authors and Affiliations
Guilherme Farias Tavares ▪ Leonardo Schiassi
slugMechanical vibration: what is the importance of this physical quantity in the poultry transport?
Mechanical vibrations are inherent to any system of transportation. In poultry production, the higher or lower intensity of this agent during the loading of eggs, chicks and chickens, can increase the production losse...
slugThermoregulatory responses and adaptability of Anglo-nubian goats maintained in thermoneutral temperature and under heat stress
This study aimed to evaluate the physiological responses and adaptability of Anglo-Nubian goat breeds by Ibéria and Benezra tests, maintained in bioclimatic chamber under different temperatures: 20, 24, 28 and 32oC, w...
slugAdaptability of sheep and strategies to minimize the effects of climate in tropical regions
The ability to adapt to a particular region is of great importance when it comes to animal production, since the interaction between animals and the environment should be taken into consideration when you want to have...
slugGenetic differences in the physiological responses of sheep in tropical environment
Were used 18 ewes of three different breed group, distributed in a completely randomized design in a factorial diagram (3 x 3, 3 breed group: Santa Inês (SI); ½ Santa Inês + ½ Dorper (Do x SI), and ½ Santa Inês + ½ Te...
slugThermoregulatory characteristics in horses submitted to vaquejada competitions
The aim of this study was to observe the behavior of physiological parameters horses undergoing physical exercises and competitions handle the bull correlate with the physical environment using the values of Wet Bulb...