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Articles by L.J. Isaac
Total Records ( 5 ) for L.J. Isaac
  O.J. Babayemi , U.A. Inyang , O.J. Ifut and L.J. Isaac
  Forages/feed conservation offers strategic and sustainable solutions to the off season feeds for ruminants. Against this background the nutritive value of ensiled cassava wastes and Albizia saman was studied. Secondary metabolites and chemical composition of ensiled Cassava Wastes (CSW) with Albizia saman Pods (ASP) were determined. In vitro gas production of CSW and ASP at 24 h incubation was assessed. The ensiled mixtures were: 100% CSW, 75% CSW+25% ASP, 50% CSW+50% ASP, 25% CSW + 75% ASP and 100% ASP. Saponin was detected in 50% ASP inclusion and 100% ASP silages while tannin was recorded for 100% ASP silage. Crude Protein (CP) content ranged from 4.81% in 100% CSW to 24.50% in 100% ASP silages. The CP values increased significantly (p<0.05) with increasing inclusion of ASP. Metabolizable Energy (ME), Organic Matter Digestibility (OMD) and Short Chain Fatty Acid (SCFA) obtained for all silage mixtures were significantly (p<0.05) different from each other. Potential gas production and potentially degradable fractions (a+b) differed significantly (p<0.05) amongst each other while rate of fermentation did not differ (p>0.05). Total gas production did not differ (p>0.05) at 3 h while for other hours (6-24 h) there were significant (p<0.05) differences with 100% CSW silage being significant over others while 100% ASP had the lowest in all the hours observed. Methane (mL-1 200 mg DM) production ranged from 7-27, the highest being from 100% CSW while the least was observed in 100% ASP. The findings of this study showed that an inclusion level of 50, 75 and even 100% ASP could support small ruminants during period of drought as against sole feeding of cassava wastes.
  O.J. Babayemi , O.J. Ifut , U.A. Inyang and L.J. Isaac
  An investigation was carried out to assess the quality characteristics, proximate composition and cell wall fractions of 6 months ensiled cassava wastes and Albizia saman pods. Cassava Wastes (CSW) and Albizia saman Pods (ASP) were mixed for preparation of silage as 100% CSW, 75% CSW+25% ASP, 50%CSW + 50% ASP, 25% CSW + 75% ASP and 100% ASP. The pH of silage ranged from 3.38-4.61. Silage structure was visible while texture ranged from wet and firm to dry and very firm. Colour ranged from dark brown in CSW to reddish brown in ASP. Odour of silage was generally alcoholic. Values for crude protein (3.50-24.50 g/100 g) increased with increasing level of ASP. There was no trend observed in the values for NDF, ADF, ADL, Cellulose and Hemicellulose. An inclusion level of 50 and 75% of ASP in the diet showed good quality silage and enhanced nutrient composition.
  A.C. Okonkwo , I.P. Akpan and L.J. Isaac
  Shrimps which constitute >70% of sea catch on processing leaves the head, limbs, tail, etc., outside the meat portion that are processed for human consumption as a bulk of waste. The study was conducted to evaluate the effect of Shrimps Waste Meal (SWM) on the performance and carcass characteristics of broilers. About 96 anak broilers were randomly selected and assigned to four experimental treatments: T1-T4 at 4 weeks in a Completely Randomized Design (CRD). Each treatment had 2 replicates of 12 birds per replicate. The experimental diets were 0% SWM/100% broiler finisher, 5% SWM/95% broiler finisher, 10/90% broiler finisher and 15%SWM/85% broiler finisher. Data collected on live weight/live weight gain, feed consumption, feed gain ratio and carcass characteristics showed no significant difference (p>0.05) among treatment and there was no negative effect on the birds. Further studies should be carried out to test its effects on the meat and eating quality of broilers.
  J.S. Ekpo , I.P. Solomon , L.J. Isaac , K.O. Ekpo and O.O. Leo
  An eleven-week research was conducted to evaluate the carcass characteristic and economics of production of rabbit fed cassava peel meal, peeled cassava tuber meal and composite cassava tuber meal diets. Twenty-four weaner rabbits of mixed strains and sexes aged 6 to 7 weeks randomly allotted to four dietary treatments replicated two times each with 3 rabbits per replicate in a completely randomized design. The parameters studied were final live-weights, dressed weight, dressing percentage, internal organs weights, feed cost (N kg1), total feed cost (N), feed cost (N kg1 gain) and relative cost advantage (%). There was no significant difference (p>0.05) in the final live weights, dressed weights, dressing percentage and in most of the internal organs measured. However, economic of production data indicated lowest cost per weight gain (N kg1) by the rabbits fed composite cassava tuber meal, while highest cost per weight gain was recorded in the rabbits fed the control diet (maize meal).
  U.H. Udoh and L.J. Isaac
  The body weight and morphometric characteristics of the three varieties of local chickens in South-South Nigeria were evaluated. Data collected on body weight and linear dimensions (body girth, thigh, wing, shank and neck lengths) were analyzed using the Multivariate General Linear Model of SPSS Version 7.0 for Analysis of Variance (ANOVA). Significantly different (p<0.05) means were separated using the Duncan Multiple Range Test. Among the cockerels, naked neck performed best in body weight and all the linear dimensions. Normal feathered cockerels ranked second in body girth but performed worst in body weight; thigh, wing, neck and shank lengths. Frizzled feather cockerels had least body girth but ranked second in body weight; thigh, wing, neck and shank lengths. Among the pullets, naked neck had the best body weight and neck length but ranked second in body girth; thigh, wing and shank lengths. Normal feathered pullets had the best body girth; thigh, wing and shank lengths but ranked second in body weight and neck length. Frizzled feather pullets performed worst in body weight and all the linear dimensions. The three varieties differed significantly (p<0.05) only in body weight and wing length. Best results were obtained by the naked neck cockerels. Due to the superiority of the naked neck variety, particularly the cockerels they should be further characterized, conserved and crossed with the normal feathered variety to enhance body weight and morphometric characteristics.
 
 
 
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