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Articles by A.O. Akinsoyinu
Total Records ( 3 ) for A.O. Akinsoyinu
  O.O. Babalola and A.O. Akinsoyinu
  Four different breeds of snail, Archachatina Marginata (AM), Achatina Achatina (AA), Achatina Fulica (AF) and Limicolaria species (LM) were analyzed for proximate composition and mineral profile of the snail flesh (foot or edible potion). Proximate analysis of the snail flesh revealed that moisture was highest in LM (84.91%) and least in AM (73.67%). The crude protein contents of the breeds were significantly different from one another (p<0.05). The values ranged from 19.53% for AM to 5.86% for LM. The ash and ether extract of AM and AA were significantly higher (p<0.05) than that of AF, while LM had the least. AF had the highest Nitrogen Free Extract (NFE) while the least was observed in AM. The NFE and ether extract (fat) contents were generally low. The result of the mineral profile showed that AM recorded highest value (mg/100 g) in Calcium (126.40), Iron (2.29), Phosphorous (22.91), Magnesium (25.01) and Copper (1.03) while LM had the least values of 36.20, 0.72, 8.98, 5.28 and 0.29 respectively. These values across breeds for all the minerals analyzed were significantly different (p<0.05) from one another with the following trend AM>AA>AF>LM. There was no detection of lead and mercury in any of the samples. The result of the study showed that the African giant land snail, Archachatina marginata, apart from having size advantage is the favoured breed based on its nutritional superiority.
  R. Olajide , A.O. Akinsoyinu , O.J. Babayemi , A.B. Omojola , A.O. Abu and K.D. Afolabi
  Effective utilization of wild cocoyam corm in livestock feed is limited by the presence of anti-nutrient components which requires some forms of processing. The effect of soaking, cooking and fermentation on proximate composition, caloric values and contents of Anti-Nutritional Factors (ANFs) of wild cocoyam [Colocasia esculenta (L.)] Schott corm were determined with the aim of investigating its suitability as a feed ingredient. Raw, Cooked, Soaked and Fermented Wild Cocoyam Corm (i.e. RWCC, CWCC, SWCC and FWCC respectively) were sun dried and their proximate composition, Gross Energy (GE), Metabolizable Energy (ME) and contents of ANFs were determined. Crude protein was significantly (p<0.05) highest in FWCC and significantly (p<0.05) lowest in CWCC. Crude fibre significantly (p<0.05) decreased by the processing methods with the highest values obtained in RWCC and SWCC. Ether extract of RWCC was significantly (p<0.05) higher than for the other processed Wild Cocoyam Corm (WCC). The highest Nitrogen Free Extract (NFE), GE, ME and ME as percentage of GE was obtained in RWCC, FWCC, FWCC and RWCC respectively. Contents of ANFs [tannins, phytate, oxalate, saponin and Hydrocyanide (HCN)] were significantly (p<0.05) reduced by processing methods with RWCC recording the highest value. Fermentation had the highest (p<0.05) percentage reductive values of 42.86, 69.23, 95.05, 73.58 and 57.91% in condensed tannins, hydrolysable tannins, phytate, oxalate and HCN respectively, while the highest (p<0.05) percentage reduction of 48.39% in saponin was obtained in CWCC. There were no activities detected for trypsin inhibitors in all the processed forms of WCC assayed. The results show that the processing techniques adopted significantly (p<0.05) enhanced the nutrients and caloric components and reduced the array of ANFs in RWCC, suggestive of its potential as a feed resource.
  T.O. Abegunde , O.J. Babayemi and A.O. Akinsoyinu
  In vitro fermentation technique was used to evaluate the replacement effects of Panicum maximum (PM) with Ficus polita (FP) and Cassava Peels (CPL) at four levels {Treatments 1 (T1), 2 (T2), 3 (T3) and 4 (T4)} in dry and wet seasons. (T1) 0% FP+ 90% PM + 10% CPL; (T2) 30% FP+60% PM + 10% CPL; (T3) 60% FP+30% PM + 10% CPL and (T4) 90% FP+0% PM + 10% CPL. Chemical composition and qualitative analysis of saponin and tannins were determined. In vitro Gas Production (IVGP) of diets were carried out over 24 h. Metabolizable Energy (ME), Organic Matter Digestibility (OMD) and Short Chain Fatty Acids (SCFA) were predicted. Methane (CH4) production was also measured. Results indicated that FP contained high levels of protein in the dry (15.7 g/100 g DM) and wet (19.9 g/100 g DM) seasons. Crude Fibre (CF), Ether Extract (EE), ash and Neutral Detergent Fibre (NDF) values in the dry and wet seasons were 22.0 and 19.0 g/100 g DM, 20.5 and 17.8 g/100 g DM, 7.8 and 10.0 g/100 g DM, 67.0 and 88.0 g/100 g DM, respectively. Qualitative analysis of secondary metabolites in FP indicated the presence of saponin in the dry season while tannin was absent in both seasons. IVGP, ME, OMD, SCFA and methanogenesis were not significantly (p<0.05) affected by levels of inclusion of FP. Results revealed that based on the availability of FP, it can be fed to goats at any level of inclusion up to 60% with PM without any detrimental effects.
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