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
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...
slugFeed sorting of beef cattle in a feedlot fed different forages and housed in individual or collective pens
Feed sorting is a natural behavior of cattle that can result in inconsistencies in the nutritive value of the diet. Twenty-four non-castrated F1 Red Norte × Nelore males with an average initial body weight of 439.8 ±...
slugIngestive behavior and thermoregulatory responses of equine in grazing activities
The objective of this article was to evaluate the main physiological responses, as well as the main patterns of ingestive behavior and physiological parameters of equines in activities grazing. Animal behavior is infl...
slugWelfare quality applied to the Brazilian dairy cattle
Due to the necessity of establishing animal welfare standards for the Brazilian dairy sector in harmony to the new consumer’s requirements and legislation, it was drawn up the project Welfare Quality (WQ) - Brazil, ba...
slugBiophysical responses of Santa Inês and crossbred Santa Inês-Dorper (F1) ewes to a hot environment
This study aimed to evaluate the biophysical responses of Santa Inês ewes and crossbred Santa InêsDorper ewes in a hot environment. Physiological parameters were measured: rectal temperature, respiratory rate, coat su...