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Articles by K.T. Orayaga
Total Records ( 2 ) for K.T. Orayaga
  O.I.A. Oluremi , F.N. Okafor , A.Y. Adenkola and K.T. Orayaga
  A 5-week feeding trial to determine the effect of fermentation of sweet orange (Citrus sinensis) fruit peel on its maize replacement value in broiler starter diet was conducted. Sweet orange fruit peels were collected from peeled orange sellers and divided into three portions. The first portion was not fermented (SP0), while the second and third portions were fermented for 24hrs (SP24) and 48hrs (SP48), respectively. They were separately sun-dried, milled and samples screened and analyzed for phytonutrients. Four different diets namely the control (CD) and three test diets SP0D, SP24D and SP48D in which SP0, SP24D and SP48 replaced maize in the control diet (CD) at 30% level in that order were compounded. Seven-day old one hundred and twenty Anak 2000 broiler chicks were randomly assigned to these diet groups to evaluate their performance. There was a decrease in the concentration of each of oxalate, flavonoid, tannin, saponin and phytate detected in the peels as the duration of fermentation increased from 0 to 48hrs. Thirty percent replacement of maize by the fermented sweet orange fruit peel meal depressed body weight gain (p<0.01), feed intake (p<0.05) and live weight (p<0.01) of broiler starter. The fermentation technique used in this study did not improve the nutritive value of the sweet orange fruit peels to enhance its suitability as a feed resource in broiler starter production.
  C.D. Tuleun , A.Y. Adenkola and K.T. Orayaga
  A 35 days feeding trial was conducted to evaluate the effect of the fermentation of mucuna seed meal on broiler performance, carcass characteristics and haematology. One hundred and fifty 4 weeks old Anak 2000 broiler chicks were randomly assigned to four treatments, replicated 3 times with 10 birds each. Mucuna seeds were purchased from International Institute of Tropical Agriculture, Ibadan, Nigeria. They were cleaned of dirt, cooked in water for 5 h, drained of water, packed hot in jute bags and covered with polythene films to naturally ferment for 48 h, thereafter sun-dried and milled for the feeding trial. Five isonitrogenous and isocalolic diets were formulated such that diet 1 (0%) contained no mucuna and served as the control while 2, 3, 4 and 5 contained 5, 10, 15 and 20% Fermented Mucuna Seed Meal (FMSM), respectively. The results showed that final body weight, daily weight gain, daily feed intake, protein intake, feed conversion and protein efficiency ratios were not significant (p>0.05) affected by the level of dietary inclusion of FMSM. There were significantly (p<0.05) differences in the protein conversion ratio but with no definite pattern. Percentage bled weight and relative weight of spleen of the broilers were significantly (p<0.05) higher in birds on FMSM diets compared with the control treatment. However, the carcass characteristics and other visceral organs did not differ significantly (p>0.05) across the dietary treatments. Packed cell volume and haemoglobin values were significantly (p<0.05) higher in broilers on 20% FMSM diets but the values fell within the acceptable range for healthy chickens. Dietary inclusion of FMSM at 20% produced a comparable performance with the control diet and had no adverse effect on organ and haematological parameters.
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