DEPARTMENT OF ANIMAL SCIENCE
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Item Effect of water electrolyte supplementation on perfonnance, serum and haematological indices of broiler chickens under heat-stressed condition(Animal Science Association of Nigeria, 2018) Adeyemo, G. O.; Sulaiman, A. K.; Tanimowo, D. A.; Longe, O. G.In a study to assess the effect of electrolyte supplementation on performance of broiler chicken, 192 day- old Abor Acre broiler chicks were randomly allotted to 4 treatments: T1 - un-supplemented water, T2 - 0.5% NaCI, T3 - 0.5% KCI and T4 - 0.5% NaHCO3, with 6 replicates each in a completely randomized design. Initial weight, final weight, weight gain, feed intake were recorded and feed conversion computed. Mortality was recorded when observed. Ambient temperature and relative humidity were monitored daily. At the end of day 28, rectal temperature of each bird was recorded weekly for 3 weeks using a digital thermometer. At day 42, blood (5mls) was collected for haematological indices and plasma separated for the determination of Cl, Na, K, Ca, P, Mg, HCO3. Data obtained were analyzed and means separation determined by least significant differences (p<0.05) using the SAS Institute statistical software. Under heat stress, 0.5% KCI and 0.5%NaCI supplementation in water reduced rectal temperature, increased body weight, improved FCR, and reduced blood pH. Electrolyte supplementation also influenced red blood cell count as well as serum levels of sodium, potassium and bicarbonate. Supplementing KCI and NaCI in drinking water may be a means to improve productivity of broiler under high temperature and humidity conditions.Item Effect of Ad-libitum, split and restricted feeding on performance, digestibility and welfare of broiler chicken(Sciencedomain International, 2017) Adeyemo, G. O.; Badmus, R. T.; Longe, O. G.; Ologhobo, A. D.An experiment was conducted to assess the performance, welfare and digestibility of broilers fed varying forms of feeding regimes. The objective of this work research was investigate the possibility of improving growth performances, digestibility and welfare of broilers using ad libitum, split and restricted feeding. Formulated diet was given in four different forms Ad-libitum (Treatment 1) twice a day meal/split feeding (Treatment 2) thrice a day feeding (Treatment 3) 3 hours restriction feeding (Treatment 4). Experimental design was completely randomized design. 240 broilers were randomly allotted to four treatments with 6 replicates and 10 birds per replicate. Birds were weighed weekly to evaluate their performances, faeces was collected on day 42, to determine digestibility and rectal temperature was taken as a measure of bird's wellbeing. Results showed that there were no significant differences (p≥ 0.05) in performance of birds across treatments but values from birds fed Ad-libitum were higher. Rectal temperature (RT) differ at week 4, birds fed 3 hours restricted feeding had the highest RT (41.62°C) while the least RT were from birds fed Ad-libitum (41.20°C). Significant differences were obtained in digestibility and nutrient utilization of broilers with respect to feeding regimes. Crude protein (CP) digestibility was significantly higher in birds fed 3 hours restriction (81.91%) while birds fed Ad-libitum had the least (46.76%). The digestibility of crude fibre was higher in birds fed 3 hours restricted feeding regime (86.77%) the least was from birds fed thrice a day feeding regime (62.66%). A similar trend was obtained for digestibility of gross energy. Ad-libitum feeding had the highest non-significant performance values but split feeding optimized feed and nutrient utilization thereby enhancing performance and minimizing nutrient waste at the same time.Item Dietary effect of different drying methods and graded inclusion levels of ginger (zingiber officinale) on the perfonnance and gut morphology of broilers(Sciencedomain International, 2016) Adeyemo, G. O.; Ogunshote, E. O.; Longe, O. G.The experimental design was a 3 by 3 factorial arrangement in a completely randomized design. Three hundred broilers were used for the experiment; they were randomly allotted to the ten dietary treatments with 5 replicates per treatment and 6 birds per replicate. The birds were weighed weekly to determine their weight gain, body weight and feed conversion ratio. Thirty finisher birds were sacrificed and the ileum and duodenum removed for gut histo-morphometry. Results showed that drying methods influenced performance. This was observed for the average body weight gained per bird per day while the effect of the inclusion level was observed on the feed conversion ratio. Factor interaction was observed for weight gained/bird per day and feed conversion ratio. However, only numerical differences were observed for average final body weight/bird and average feed intake /bird/day. Duodenal and ilea, villous height showed significant effect (P<0.05) of drying method, inclusion levels and treatment interaction with the control having the highest mean values. It can be concluded that supplementing broiler feed with air-dried ginger at 1.5% inclusion level can be effective as it led to an increase in the final body weight, average body weight gained per day per bird and average feed intake. No effect of drying methods and inclusion levels were observed for the histo-morphometry.Item Effect of dietary inclusion of ginger (zingiber officinale) dried with different methods on perfonnance and gut microbial population of broiler chicks(Sciencedomain International, 2016) Adeyemo, G. O.; Olowookere, I. J.; Longe, O. G.Effect of dietary inclusion of differently processed ginger on performance and microbial population of broiler chicks were investigated in a 52-days feeding trial. A total of three hundred one-day old (arbor acre) broiler chicks were used for the experiment, the birds were allotted into ten dietary treatments of five replicates and six birds per replicate in a 3x3 factorial arrangement of completely randomized design. Weights of the birds were taken weekly throughout the experimental period. Birds were fed ad-libitum such that diet 1 was the basal diet (BD) without ginger, diets 2, 3 and 4 were BD+ sundried ginger at 1, 1.5, 2% inclusion levels respectively, diets 5, 6 and 7 were BD+ air- dried ginger at 1, 1.5 and 2% inclusion levels respectively, diets 8, 9 and 10 were BD+ oven-dried ginger at 1, 1.5 and 2% inclusion level respectively. On day 52 of the experiment, the birds were slaughtered. Sections of the ileum was cut and aseptically emptied into a sterile bottle for microbial analysis. Broilers fed diets containing ginger had no significant (P> 0.05) differences on the average initial body weight, average final body weight and average daily feed intake. Although the birds fed with diet containing oven-dried ginger at 2% inclusion level had the least (P>0.05) numerical difference of the average daily feed intake. The average body weight gain and feed conversion ratio (FCR) were not significant across the dietary treatments. Birds fed diet without ginger had higher body weight gain and best feed conversion ratio (P<0.05). The total Aerobic and coliform microbial counts of broilers were not significantly (P>0.05) affected by the dietary treatments. Although the total aerobic microbial count was reduced in birds fed diets containing ginger when compared with the control.Item Haematological and Serum Biochemical response of broiler chicks fed diets containing ginger (zingiber officinale) from different processing methods(Department of Agricultural Extension and Rural Development, University of Ibadan, 2015-07) Adeyemo, G. O.; Olowookere, I. J.; Longe, O. G.An experiment was conducted with 300 one day old (arbor acre) broilers to assess their haematological and serum biochemical response when fed ad-libitum varying levels of dietary ginger from different processing methods. Ten dietary treatments were formulated such that diet 1 was the basal diet (BD) without ginger, diets 2, 3 and 4 were BD+ sundried ginger at 1, 1.5, 2% inclusion levels respectively, diets 5, 6 and 7 were BD+ air-dried ginger at 1, 1.5 and 2% inclusion levels respectively, diets 8, 9 and 10 were BD+ oven-dried ginger at 1, 1.5 and 2% inclusion level respectively. On day 52 of the experiment, blood samples were collected from the wing vein of the birds for haematological and serum biochemical evaluation. Dietary treatments had no significant differences on haematological parameters, except for the packed cell volume (PCV) and monocytes which were significantly P<0.05 influenced by the dietary treatment. Broilers fed with diet containing sun-dried ginger at 1.5% inclusion level had the highest PCV value and monocyte value. The serum biochemical indices were not significantly P>0.05 affected by the dietary treatments. However, the total cholesterol was reduced across the diets that contained ginger when compared with the control.Item The reproductive performance of breeder cocks fed cottonseed cake-based diets(Asian Network and Scientific Information, 2007) Adeyamo, G.O.; Longe, O. G.; Adejumo, A. O.Histology of the tests of breeder cocks fed replacement levels of 0, 25, 50, 75, or 100% of cottonseed meal (CSM) for soybean meal (SBM) in five different breeder diets for fifteen weeks were investigated in completely randomized design. Chemical analyses were carried out to determine the crude protein (CP) and gossypol content of CSM. The 23 week-old breeder cocks were fed the experimental diets for 15 weeks, euthanized and their testes removed for histological studies. The determined CP and gossypol content of CSM were 35.11% and 570 g/ton respectively. The daily sperm production (DSP) by the breeder cocks was depressed when CSM dietary inclusion was above 50% with DSP values ranging from 1.5x109 to 2.9x 109 mL. the investigation showed that replacing 75% SBM with CSM was not injurious to the non-reproductive health of the breeder cocks. However, CMS may not replace more than 50% of SBM for breeder cocks because of the depressing effect of gossypol on sperm production when this level is exceeded.