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Articles by S.F. Abasiekong
Total Records ( 9 ) for S.F. Abasiekong
  Ojewola, G.S. , J.O. Otteh and S.F. Abasiekong
  African Yam Bean (AYB) meal and Nutrase-xyla enzyme were evaluated for their nutritive and economic efficiency in broiler starter diets. Six diets were formulated, a control (D1) and five others. AYB meal and fish meal were the major plant and animal protein sources. Diets 2,3,4,5 and 6 were supplemented with nutrase-xyla enzyme at 10g/100kg, 20kg/100g, 30g/100kg, 40/100g and 50g/100kg diet respectively. The calculated percent crude protein of the diets was 25 while metabolizable energy was 3100kcal/kg. One hundred and forty-four (144) day-old unsexed Anak 2000 strains of broiler chicks were used for the trial. Each treatment consisted of 3 replicates of 8 birds in a Completely Randomised Design (CRD). The experiment lasted 5 weeks. The results showed that the mean body weight gain and feed-to-gain ratio were significantly (P<0.05) depressed. D1 had the highest body weight gain (603.02g) while diets 2,3,4,5 and 6 were 331.66g 300.83g, 300.56g, 342.36g and 341.25 respectively. The total revenue realizable from Diet 1 (N361.81) was significantly (P<0.05) higher than the other diets. It was therefore concluded that the use of AYB meal with or without nutrase-xyla enzyme supplementation is not efficient and research efforts need be made towards the provision of appropriate characterization of AYB carbohydrate, protein and anti-nutritional components to allow for development of appropriate enzymes and toxin binders that could enhance their nutritive value and utilization.
  I.F. Etuk , G.S. Ojewola and S.F. Abasiekong
  A study was conducted to evaluate the performance of Nigerian native muscovy ducks in terms of growth and feed utilization in a Randomized Complete Block Design (RCBD) under semi intensive system (SI), Intensive system with wallow (IW), and intensive system without wallow (IO). Eighteen males and equal number of female ducklings were allotted to two replicates each of the three treatments and fed from week 5 to week 20 with diet containing 17% CP and 2848.9 kcal/kg energy. Weekly weights were measured and compared using two-way analysis of variance. Final body weights were SI (males: 2507.07g, females: 1733.83g), IW (males: 2466.67g, females: 1641.17g) and IO (males: 2464.84g, females: 1657.67g). Average daily gains of drakes were 16.07g (SI), 16.39g (IW) 15.87g (IO); while those of females were 10.18g, 11.03g and 9.91g respectively. Average daily gain of drakes was significantly higher (P< 0.05) than that of females (16.11g versus 10.17g). Average feed intake were 128.54g, 130.68g and 131.14g daily in the respective groups while feed conversion ratios were 11.56, 11.44, and 12.16 respectively too. Management systems adopted in this trial did not have significant effect (P>0.05) on performance of muscovy ducks in the region.
  I.F. Etuk , S.F. Abasiekong , G.S. Ojewola and S.C. Akomas
  An experiment was conducted to evaluate carcass parameters of muscovy ducks reared under semi intensive system (SI), intensive system with wallow (IW) and intensive system without wallow (IO) in a randomized complete block design (RCBD). Thirty six ducks (18 males and 18 females) were slaughtered from the three treatments comprising 3 males and three females from each of two replicates of a treatment selected randomly at the age of 20 weeks. Carcass yield, thigh muscle weight and breast muscle weight of ducks under intensive systems were significantly higher (P< 0.05) than those of ducks in semi intensive management system. The dressing percentage of male (Drakes) were also numerically higher (72.01 - 74.90) than that of the females (Ducks; 69.09 - 70.98). Ducks and or Drakes raised under the intensive management system (IW, and IO) had a significantly superior dressing percentage (74.94- IW; 72.48- IO) compared with those reared under semi-intensive management system. Weights of thigh muscles and breast muscles of Ducks and or Drakes followed similar trend. Liver weight ranged between 63g- 65.25g (males) and 51g-53g (females), gizzard weights were in the range of 79g-80.50g (males) and 56g-57g (females), while heart weights ranged between 24g-27.50g (males) and 17g-19g (females). No significant differences (P>0.05) were observed in these parameters that can be attributed to management systems. In conclusion, rearing Muscovy ducks under intensive system of management produced better carcass yield.
  Ojewola, G.S. , S.F. Abasiekong , M.U. Uko and M. Oguike
  The effect of dietary lysine supplementation at varying levels on the reproductive performance of rabbits of mixed breed was investigated. A total of twenty (20) does with average weight of 1.85kg were used for the study in a Completely Randomized Design (CRD). The experimental diets consisted of concentrate mash (16.87% CP and 2564.84 kcal kg 1ME) supplemented with 0.00, 0.10, 0.20, 0.30 and 0.40 lysine levels, respectively, designated as diets 1, 2, 3, 4 and 5 with 4 replications having one doe per replicate, thus making a total of 4 rabbits per treatment. The experiment lasted 11 weeks (77 days). The results showed that the various parameters among which are gestation length, average litter size at birth, litter weight at birth, litter weight and size at weaning were not significantly influenced (p>0.05). Nonetheless, rabbits fed diet 3 gave the best mean litter weight (1272 g) at weaning, while diet 2 has the highest (5.44) weaning size. It was also observed that individual kit weaning weight differed from treatment to treatment depending on the litter size at weaning; the higher the litter size at weaning the lower the individual weaning weights. In conclusion, lysine supplementation and total dietary lysine in rabbit diets should not exceed 0.20% and 1.01%, respectively.
  Ojewola, G.S. , S.F. Abasiekong , M.U. Uko and S. Akomas
  Five graded levels of dietary methionine supplementation were compared in an isonitrogenous (16.87%CP) and isocaloric (2564.84 kcal kg-1) diets fed twenty (20) matured female rabbits (mixed breed) with mean weight range of 1875g and 1893g. The trial lasted 11 weeks (77 days). The rabbits were randomly allocated to the five dietary treatments in a Completely Randomized Design (CRD). Each treatment was replicated four times with one rabbit per replicate. All the parameters considered were significantly influenced (p<0.05) except the average litter weight at birth. The mean number of matings (1.0 to 2.0) to conception and gestation length followed no discemible pattern. However, premature litters were produced by rabbits fed diet 5. Mean litter size at birth and mean litter weight respectively ranged from 3.17 to 6.00 and 214g to 29lg and followed no definite pattern. Heavier birth weights were obtained in all the diets (1-4) only with the exception of rabbits fed diet 5. The mean litter size at weaning also rose from D1 to D4 only with an exception to rabbits fed Diet 5. The best mean litter weight at weaning was obtained from rabbits fed diet 4. Methionine supplementation at 0.3% therefore, produced a better kit weaning weight, an indication that total dietary methionine content should not exceed 0.61% under a tropical condition. 100% mortality of kits was obtained in rabbits fed D5, an indication that 0.71 dietary methionine content is deleterious to the survival of rabbits.
  Akinmutimi, A.H. , U.I. Okoro and S.F. Abasiekong
  The effect of quantitative replacement of soyabean meal with raw sword bean meal in grower rabbit diets was investigated using twelve grower rabbits in a completely randomised design experiment. There were four dietary treatments and three rabbits were allocated to each of the diets, therefore by implication, one rabbit per replicate. The experiment lasted for 56 days. The result showed that there was no significant difference (p>0.05) among the treatments with regard to the growth performance parameters. The highest gross margin of N1660.2k was obtained with 15% dietary level of inclusion (96.76% replacement of soyabean meal). The cut-parts and organ weights showed no significant difference (p>0.05) among the treatment means with the exception of the thigh and back-cut for cut-parts and liver and spleen for organ weights. The highest value for back-cut and thigh occurred in diets three and four respectively. The liver and spleen values did not follow any specific trend. Based on the above results, 15% dietary level of inclusion of raw sword bean (96.76% quantitative replacements soyabean meal) compared favourably with control diet (soyabean meal based diet) and hence recommended.
  Akinmutimi, A.H. , S.F. Abasiekong and V.O. Shoyinka
  Feeding trial was conducted using 150 birds of day-old Anak broiler chicks, to assess the effect of substituting raw sword bean meal for soybean meal in broiler finisher diets. 30 and 10 birds respectively constitutes a treatment and a replicate in a completely randomized design. Five experimental diets were used. Diet one was soybean based (control), while the test feedstuff quantitatively replaced 22.42, 44.84, 67.76 and 89.69% of soybean in diets 2, 3, 4 and 5, respectively. Feed intake of birds significantly (p>0.05) decreased as the quantity of raw sword bean increased in the diets. Weight gain followed the same pattern while feed-to-gain ratio significantly (p<0.05) increased as the quantity of raw sword meal increased in the diet. Mortality for birds fed diets 4 and 5 were 6.7 and 10%, respectively. The gross margin value favoured the control diet (N170.69) as opposed to the test diets with N169.69; N116.64; -N16.69 and -N61.88 for diets 2, 3, 4 and 5, respectively. Mean weight of organ showed significant (p<0.05) different for all the parameters measured with the exception of kidney and spleen. For the weight of cut-part, there were no significant (p>0.05) differences among treatment groups except for breast-cut and back-cut where diets 1 and 2 (24.03, 24.02) performed better than the others. The blood constituents showed significant difference (p<0.05) for all the parameters measured only with the exception of white blood cell. The PCV values fall within the normal range for all the treatment means. The RBC, MCH, MCHC, MCV values were abnormal starting from treatment 3 with the exception of MCHC starting from treatment 2. Serum albumin, creatinine, urea and alkaline phosphatase were higher in the test diets than in the control diet with the exception of treatment 2 where the value for alkaline phosphatase and albumin were lower than the control diet. The control diet had higher globulin value than the test diets. Liver, kidney and spleen were affected histopathologically. Raw sword bean meal cannot replace soybean meal quantitatively even at 5% dietary level of inclusion.
  K.U. Amaefule , O.C. Onwudike , S.N. Ibe and S.F. Abasiekong
  Twenty-four (Landrace x Large white) weaner pigs with average live weight of 6.36 kg (6.25-6.50 kg) were used to evaluate the performance, cost benefit, carcass quality and organ characteristics of pigs fed high graded levels of brewers` dried grain (BDG) diets in the humid tropics. The diets contained 0, 30, 35 and 40% BDG in Treatments 1, 2, 3 and 4, respectively. The experiment was in a completely randomized design (CRD) with each treatment replicated three times. Live weight, weight gain, feed and protein intake, feed conversion ratio (FCR) and protein efficiency ratio (PER) were measured. Other measurements were feed cost of weight gain, gross margin, warm dressed weight, carcass and organ characteristics. Results showed that weaner pigs fed 40% BDG diet had significantly (P< 0.05) higher protein intake (113.65 g) than others, while increasing levels of BDG in the diets significantly (P< 0.05) decreased feed cost at the weaner stage. At the grower stage, pigs fed 35% BDG diet had weight gain, FCR and PER values similar to those fed control diet, while BDG diets significantly affected back fat (1st rib) thickness, carcass length and percent spleen. It was concluded that weaner pigs could be fed 40% BDG diet to reduce feed cost, without adverse effect on growth performance. At the grower stage, the optimum inclusion level of BDG in the pig`s diet should be 35%, although 40% BDG diet could be fed to reduce feed cost without adverse effect on carcass quality and organ characteristics of the pigs.
  K.U. Amaefule , S.N. Ibe , S.F. Abasiekong and O.C. Onwudike
  The response of weaner pigs to diets of different proportions and high levels of palm kernel meal (PKM) and brewers dried grain (BDG) in the humid tropics was determined with 24 hybrid (Landrace x Duroc) pigs whose initial live weights ranged from 8.08 to 8.21 kg (average 8.18 kg). The different proportions of PKM + BDG in the diets were 30 + 40% (T2), 35 + 35% (T3), and 40 + 30% (T4), respectively. PKM + BDG was 0% in T1 (control) and replaced maize in diets T2, T3 and T4. Growth performance and cost-benefit were evaluated at the weaner stage, while carcass and organ characteristics were added at the end of grower stage. Parameters measured were live weight, weight gain, feed intake, feed conversion ratio (FCR), protein efficiency ratio (PER), feed cost, feed cost of weight gain, gross margin, carcass and organ characteristics. Diets of different proportions of PKM and BDG significantly (P< 0.05) increased FCR and protein intake, significantly (P< 0.05) reduced cost of production and increased gross margin at the wea ner stage. At the grower stage, PKM+BDG diets significantly (P< 0.05) lowered final live weight, weight gain, PER and significantly (P< 0.05) increased FCR, feed and protein intake. The diets also significantly (P< 0.05) reduced total feed cost compared to the control diet and affected some carcass and organ characteristics without regular pattern. It was concluded that weaner and grower pigs could be fed diets containing 70% PKM + BDG (at various proportional combinations), replacing maize completely in the diets.
 
 
 
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