DEPARTMENT OF ANIMAL SCIENCE
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Item Physical characteristics, nutritive value and preference of zebu heifers for ensiled mixtures of corn cob, cassava peel and urea(2015) Olorunnisomo, O. A.; Ososanya, T. O.In order to improve the feeding quality of corn cob and cassava peel for zebu cattle, a mixture of corn cob-cassava peel was ensiled with 0, 1, 2, and 3% of urea. Physical characteristics, chemical composition and in vitro digestibility of the silage mixtures were determined in a laboratory trial while the preference of cattle for the mixtures was evaluated using twelve Sokoto Gudali heifers in a cafeteria feeding trial. The experimental design adopted was the completely randomized design. Silage colour changed from white to yellow; smell from very pleasant to pungent; and texture from very firm to firm as the level of urea in the silage increased. The pH increased from 3.80 to 6.00 as level of urea in the mixture increased. Crude protein (CP) content of silage increased from 8.50 to 17.52% while acid detergent fibre (ADF) decreased from 34.13 to 30.90% as level of urea in the silage mixture increased. Organic matter digestibility (OMD) varied from 55.44 - 60.45%, and increased with addition of urea. Preference of zebu heifers for corn c'ob-cassava peel silage varied from 13.81 - 38.87%. Acceptability of silage reduced significantly as level of urea increased. Addition of urea to corn cob- cassava peel silage enhanced CP content and digestibility but physical attributes and acceptability of silage by cattle were adversely affected.Item Quality and acceptability of velvet bean (mucuna pruriens) foliage ensiled with whole plant maize by West Africa dwarf sheep(2014) Alabi, B. O.; Ososanya, T. O.; Olorunnisomo, O. A.This experiment was conducted to determine the suitability of Velvet Bean Foliage (VBF) and Whole Plant Maize (WPM) silage as dry season feed for ruminants in Southwest of Nigeria. In this study, WPM was ensiled with five levels of VBF (0, 25, 50, 75 and 100%). Physical characteristics, temperature, pH and proximate composition of the silages were assessed after 21 days of ensiling. Preference for the silage by ruminants was determined using twelve West African dwarf (WAD) rams. Results revealed that pH, temperature and physical characteristics of all silages were within acceptable range except for VBF -100 which did not make good silage. The appearance, smell and texture of all the silage mixtures compromised increasing level of VBF while the pH increased. The pH of the silage varied from 3.92-7.98. Dry matter (DM), crude protein (CP) and crude fibre (CF) concentration in the silages ranged from 20.67 - 26.65, 8.02 - 15.77, 26.42 - 1926g/100g, respectively. The DM and CF of the silages reduced with increasing level of VBF in the mixture while the CP increased. Coefficient of preference (CoP) for the silage varied from 0.79 to 1.13 while percentage preference varied from 15.58 - 22.50%. The coefficient of preference (CoP) was above unity for VBF (0, 25, 50 and 75) but less than unity for VBF- 100, showing that rams preferred silage with whole plant maize to sole VBF. This result suggests that quality of Whole plant maize silage improved when velvet bean foliage was added; however, acceptability by WAD rams was compromised.Item Semen characteristics of pubertal West African dwarf rams fed pineapple waste silage as replacement for dried cassava peel(Academic Journals, 2014-01) Ososanya, T. O.; Adewumi, M. K.; Oyeyemi, M. O.; Adeosun, A. O.In the tropics, ruminants are raised on natural pastures which decline rapidly in quality and quantity during the dry season. This study assessed the reproductive performance of rams fed with cassava–peel–silage (CPS) blended with pineapple-waste (PW) on: scrotal circumference, testicular size and semen volume. Randomized complete block design with four treatments of PW at 0, 20, 40 and 60% w/w in Diets 1, 2, 3 and 4 were used. Each treatment had three replicates while semen was collected once from all replicates in the treatments. Rams were fed experimental diets for 56 days. Cassava-peel was substituted with PW at 0, 20, 40 and 60% w/w in Diets 1, 2, 3 and 4 respectively. Fresh PW were ensiled in plastic mini silos. Samples of freshly processed pineapple waste were taken on the day of ensiling and ensiled products were opened after 21 days to determine their nutritive value. All silage blends had colours from brown to yellow with pH values from 4.0 to 6.8. The scrotal diameter from 16.00cm to 21.40cm and scrotal length from 8.83cm and 12.75cm but did not differ significantly (P>0.05). The sperm motility of rams fed diets 4 and 1 was similar to rams fed other diets. Mean sperm volume, percentage livability and percentage sperm morphology were similar across treatments (P>0.05). It can be concluded that CPS blended with PW up to 60% showed no adverse effect on semen characteristics and fertility of the rams.Item Haematology parameters of West African dwarf rams fed velvet bean (mucuna pruriens) ensiled with whole maize stover(Animal Science Association of Nigeria, 2015) Alabi, B. O.; Ososanya, T. O.The haematological characteristics of West African Dwarf (WAD) Rams fed velvet bean (Mucuna pruriens) foliage ensiled with whole maize were determined. Twenty (20) growing rams aged 10-15 months with mean weight ranging between 11.75-12.00kg were randomly assigned to four dietary treatments comprising five animals per dietary treatment in a completely randomized design (CRD). Treatment 1 contained 100% ensiled whole maize, Treatment 2 contained 75% whole maize + 25% Mucunapruriensfoliage silage, Treatment 3 contained 50% whole maize + 50% Mucunapruriensfoliage silage, Treatment 4 contained 25%> whole maize + 75% Mucunapruriensfoliage silage respectively. Each animal receive each diet at 5% body weight for 105 days. Blood was collected through jugular vein and put into well lebelled bottle containing anticoagulant ethylene diaminetetracetic acid (EDTA). The blood samples were analyzed for Red blood cell (RBC) count, Parked cell volume (PCV), haemoglobin (Hb), white blood cell (WBC) count, neutrophils, lymphocytes, eosinophils and monocytes. Significant differences (P<0.05) were obtained in haemoglobin and neutrophil which range from 6.11-9.87g/dl and 35.28 - 41.23% respectively while other parameters investigated showed no significant (P>0.05) differences. The nutritional health status of the rams can be enhanced when fed Mucunapruriensfoliage and whole maize silage but best result could be obtained when fed silage containing 75% whole maize and 25% Mucunapruriens.