FACULTY OF AGRICULTURE
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Item Performance and egg quality traits of egg-type chickens fed cottonseed cake based diets(Department of Agricultural Extension and Rural Development, University of Ibadan, 2015-07) Adeyemo, G. O.The study evaluated the performance of egg type chickens fed diets where Cottonseed cake (CSC) replaced Soybean cake (SBC) in five experimental rations such that 0% (control), 15%, 30%, 45% and 60% of CSC replaced SBC. The design of the experiment was completely randomized design (CRD). Chemical analysis was carried out to determine the crude protein (CP) and gossypol contents of CSC. Seventy-five 23 week - old egg type chicken were fed with experimental layer diets for 12 weeks. Parameters evaluated include hen-day production (HDP), Feed conversion ratio (FCR), egg weight (EW) and haugh units (HU). All data were analyzed using descriptive statistics and analysis of variance. The determined CP of CSC was 35.11% and its gossypol content was 570g/ton. FCR ranged from 1.6 to 4.9, HDP from 47% to 68%, EW from 47.5 to 62.8 g, and HU from 3.1 to 6.7. Chickens on 60% CSC replacement for SBC had higher values for the parameters measured which were not significantly different from the control. CSC can replace up to 60% SBC without adverse effects on performance and egg quality characteristics of egg type birds.Item Performance and egg quality characteristics of layers fed diets with varied energy levels(2015) Adeyemo, G. O.This study was carried out to determine the effect of feeding varied energy level diets with balanced crude protein on the performance and egg quality characteristics of laying birds. One thousand two hundred (1200) Isa-Brown laying birds were allocated to four different diets in a completely randomized design. Diets 1, 2, 3, and 4 had 2500kcal/kg, 2600kcal/kg, and 2700kcal/kg and 2650kcal/kg energy respectively, with the study lasting 10 weeks. Data were collected on feed intake, egg production, egg weight, length, and width, yolk depth, length, and width, albumen width, length and depth, shell thickness and performance of laying birds fed the different diets. Results indicate that laying birds fed with 2,500kcal/kg performed better. The feed intake was highest and egg production also was highest without compromising the internal and external egg qualities. This gives an indication that adequate feed intake of balanced diet with moderate energy to a large extent will enhance better performance.