Application of Classification Tree Method to Determine Factors Affecting Fertility in Japanese quail Eggs
Journal Title: Journal of Animal Science Advances - Year 2014, Vol 4, Issue 8
Abstract
The aim of this study was to determine the effects of genotype, season and cage stocking density on fertility in Japanese quail using Classification Tree Method (CTM). CTM visually displays valuable information about the relations between independent variables in large data sets in the form of a tree diagram. The material of this study were 1954 hatching eggs from a selected a line (S line) and a randomly coupled control group (C line); the eggs were collected in three different seasons (spring, summer and autumn) and the quails were bred in two different stocking densities (160 and 240 cm2/bird). For CTM analysis, fertility was used as the dependent variable and genotype, season and cage stocking density were used as independent variables. The effects of all three factors on fertility were found significant with season exerting the highest effect followed by stocking density and genotype (P<0.05). While the lowest fertility ratio (63.91 %) was observed with S line bred in summer at a stocking density of 160 cm2/bird, the highest fertility ratio was observed with C line bred in autumn at a stocking density of 240 cm2/bird. A significant difference in terms of stocking density and genotype was found in summer and autumn. According to the CTM analysis results, the high temperatures in summer caused heat stress and had negative effects on fertility; this effect was even stronger on quails that had been selected for increased living weight and were kept at a stocking density of 160 cm2/bird.
Authors and Affiliations
F. Uckardes , D. Narinc , H. Kuçukonder , T. C. Rathert
Keywords
Related Articles
- EP ID EP131918
- DOI -
- Views 150
- Downloads 0
Part-Term Performance Traits of Commercial Layer Strains in the Derived Savannah Zone of Nigeria
This study was undertaken to compare production traits of three strains of exotic commercial layers during their first 6 months of egg production and the aim was to know which one of the three strains could be regarded a...
Characterization of the Chemical Composition of Raw and Treated Jackfruit (Artocarpus Heterophyllus) and Java Plum (Syzygium Cumini) Beans for Poultry Feeding
The chemical composition of Jackfruit beans (JFB) and Java plum beans (JPB) was investigated to establish their nutritive value for poultry. The beans were soaked in water before subjecting them to the following treatmen...
Response of Broiler Chickens to Dietary Inclusion of Alternanthera Sessilis Leaf Meal (ASLM)
Two phases of experiment were conducted with the aim of assessing the possibility of using dried Alternanthera sessilis leaf meal (ASLM) in broiler starter and finisher diets. Five diets were prepared with ASLM inclusion...
Microbiological Quality Assessment and Antibiogram of the Bacteria Isolated from Fish Feed, Oyo, South-West Nigeria
Essential nutrient is required for the growth of aquaculture either in the wild or in the artificial environment. Therefore, artificial feed need to contain essential nutrients and free of pathogenic microorganism. Sampl...
Community-Based Management of Animal Genetic Resources (AnGR): Constraints and Prospects of AnGR Conservation in the Tropics
This paper reviews the constraints and prospects of community-based management of farm Animal Genetic Resources (AnGR). AnGR encapsulates all activities that ensure dynamism to withstand socio-cultural and environmental...