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Articles by S.O.C. Ugwu
Total Records ( 6 ) for S.O.C. Ugwu
  I. Udeh , S.O.C. Ugwu and N.L. Ogagifo
  The objective of this study was to predict semen traits of local and exotic cocks using linear body measurements. To achieve this objective, 24 local and 24 exotic cocks aged 30 weeks were used. The cocks in each genetic group were divided into three replicates and housed in deep litter pens where they were fed ad libitum broiler finisher ration and water. The exotic cocks were significantly (p<0.05) superior to the local types in body weight, beak length, comb length and wing length. The local cocks produced significantly (p<0.05) more semen than the exotic cocks. The relationship between bodyweight and semen traits were not significant (p>0.05) in the two genetic groups. Significant (p<0.05) and positive correlations were observed between beak length and sperm concentration (r = 0.67), sperm motility (r = 0.70), comb length and sperm concentration (r = 0.60) and shank length and sperm motility (r = 0.59) in the exotic cocks. A positive and significant (p<0.05) correlation between wing length and percent live sperm (r = 0.59) was obtained in the local cocks. Beak length was a good predictor of sperm concentration (R2 = 0.45) and sperm motility (R2 = 0.49) in the exotic cocks. In the local cocks, shank length and wing length were good predictors of live sperm with R2 values of 0.52 and 0.35, respectively. The results of the multiple regression analysis indicate that the body measurements best predicted sperm concentration, sperm motility and semen volume in the exotic cocks and live sperm and abnormal sperm in the local cocks. It was concluded that lengths of beak, comb, shank and wing could be used to predict some semen traits of cocks.
  S.O.C. Ugwu and A.E. Onyimonyi
  The carcass, organ and organoleptic characteristics of spent layers fed Bambara nut sievates (BNS) were investigated. Ninety laying hens of the Brown Nera strain in their 9th week of lay were randomly assigned to five dietary treatment in which BNS were incorporated at levels of 0 (control), 5, 10, 15 and 20 percent. There were eighteen birds per treatment and each treatment was replicated thrice in a Completely Randomized Design. The feeding trial lasted for 45 weeks during which each bird received 120g of feed/day. Results showed that final body weight, dressing percentage and residual weight were significantly affected by treatments (P<0.05). There was an observed increase in these parameters up to the 10 percent levels after which the values declined. Birds on the 10 percent BNS diets were superior in these parameters. Gizzard and liver weights increased significantly (P<0.05) as levels of BNS increased. Organoleptic investigations revealed that colour, taste and texture of the breasts muscle were significantly (P<0.05) affected by treatments. Birds on the 10 percent BNS diet had significantly higher colour value whereas taste and texture significantly increased as level of BNS in the diets increased. In conclusion, the results of this study reveal that BNS can be incorporated at 10 percent level in diet of laying hens without compromising carcass characteristics at end of lay.
  S.O.C. Ugwu , A.E. Onyimonyi and C.I. Ozonoh
  Ninety six unsexed four weeks old Anak broilers were used to compare the performance of finishing broilers fed Palm kernel cake, Bambara offal and Rice husk as partial replacement for maize. The ninety-six broilers were divided into four groups and fed diets containing either 40 percent Maize (T1) as control or 20 percent Palm kernel cake (T2), 20 percent Bambara offal (T3) and 20 percent Rice husk (T4). Each group was replicated thrice with 8 birds per replicate in a Completely Randomized Design (CRD). Feed and water were provided ad libitum for the 28 days the trial lasted. Results showed that the effect of treatments on final body weight, body weight gain, feed intake, feed conversion ratio and feed cost/kg gain were significant (P < 0.05). Average daily gain of 0.075kg observed in birds on T2 was significantly different (P < 0.05) from values of 0.065Kg, 0.066kg and 0.067kg recorded for birds on the control, T3 and T4 diets respectively. Also, the same group (T2) had superior feed cost per kg gain of 118.60 which differed significantly (P < 0.05) from 135.59 and 154.40 observed for birds on the control and T4 diets respectively. Haematological investigation revealed that the same birds on T2 had significantly higher values (P < 0.05) of red blood cell, haemoglobin, packed cell volume and eosinophils. Results of this study showed that 20 percent PKC can effectively replace maize in diets of finishing broilers with better performance and economic returns.
  A.E. Onyimonyi and S.O.C. Ugwu
  An experiment was conducted to evaluate the performance of early growing broilers (2-6 weeks old) fed diets in which cassava peel/bovine blood mixed at varying ratios replaced 50 percent of the soyabean meal in the control Diet. One hundred and twenty broiler chicks were randomly allotted to six treatments replicated twice in a completely randomized design. Diet 1 served as the control, while Diets 2, 3, 4, 5 and 6 had cassava peel/bovine blood mixed in the ratios of 1:1; 1:2; 1:3; 2:1; and 3:1; respectively. The feeding trial lasted for 28 days. Results showed that the effect of treatments on Average Daily Feed Intake (ADFI) was significant (P<0.05). Birds on the test diets had significantly higher intake than the control group. Treatment effect on Average Final Body Wt (g), Average Daily Body Wt Gain (g) and Feed Conversion Ratio were not significant (P>0.05). Economic analysis showed that feed cost per bird was lower in the cassava/bovine blood based groups. Revenue from these groups were also higher than in the control. Benefit from birds on Diet 4 (1:3 ratio of cassava peel/bovine blood) was highest- 495.62 as against 385.23; 413.28; 459.95; 462.43 and 445.32 for birds on the control, Diets 1, 2, 3, 5 and 6 respectively. It was concluded that feeding early growing broilers cassava peel/bovine blood can effectively replace 50 percent of soyabean meal in the control without any adverse effect on the performance of the birds, while cassava peel/bovine blood at the 1: 3 rate gave the highest economic return.
  A.E. Onyimonyi and S.O.C. Ugwu
  A feeding trial was conducted to evaluate the performance of laying hens fed varying dietary levels of Toasted Bambara Offals (TBO). The TBO was included in the diet at five levels of 0, 5, 10, 15 and 20 percent. A total of ninety laying hens on their eight week of lay were used for the trial that lasted for 133 days. The ninety birds were randomly assigned to the five dietary levels (0, 5, 10, 15 and 20 percent) with 18 birds per levels. Each dietary level was further replicated four times in a completely randomized design. Results showed that egg weight (g), yolk weight (g) and albumen weight (g) were significantly (P<0.05) affected by treatments. Values of 61.38, 64.00, 64.67, 65.00 and 68.45 g was recorded as egg weights for birds on the 0, 5, 10, 15 and 20 percent diets respectively. Yolk weight was 16.53, 16.50, 16.43, 17.83 and 18.07 for 0, 5, 10, 15 and 20 percent diets respectively and albumen weight of 37.78, 39.51, 39.44, 39.82, 43.09 was also observed in that order. The cost of feed (N) significantly (P<0.05) decreased as level of TBO in the diets increased. Cost of feed consumed/bird (N) significantly decreased as level of TBO in the diets increased. Total eggs produced/bird followed the same trend. Profit recorded from sale of eggs was significantly (P<0.05) highest at the 10 percent level. A value of N 1139.81 was recorded for the 10 percent diet, as compared to N1120.13; N1126.96, N1089.75 and N1083.87 recorded for the control, 5, 15 and 20 percent diets respectively. The results of the present study showed that TBO can be fed at 10 percent to laying hens to replace substantial levels of the more costly maize and soyabean meal. This level of feeding will ensure optimum performance and economic benefit to the farmer.
  A.E. Onyimonyi , S.O.C. Ugwu and N.S. Machebe
  The performance of growing pigs fed on basis of percentage of their body weight was evaluated using twenty four growing pigs of Landrace x Large White crosses weighing averagely 35±0.5 kg at the start of the study. The pigs were assigned to four treatments and each treatment was replicated thrice with two pigs per replicate in a Completely Randomized Design. An 18% CP and 11.82 MJME/kg diet was formulated and fed at levels of 10, 8, 6 and 4% of body weights in treatments 1, 2, 3 and 4 respectively. The feeding trial lasted for 56 days. Results showed that treatment effect on the response parameters were significant (P<0.05). As percentage of body weight feeding reduced, final body weight of the pigs increased significantly (P<0.05). Pigs on treatments 2, 3 and 4 had a final body weight of 68.64, 67.62, 67.68 kg respectively which differed from the 60.03 kg observed for pigs on treatment 1. Pigs fed 4% of their body weight (Treatment 4) showed superiority in the response parameters. Pigs on Treatment 4 had a feed cost/kg gain value of 79.56 naira which differed significantly from 263.21 naira, 161.78 naira and 120.67 naira recorded for pigs on T1, T2 and T3 respectively. Linear body measurement of the pigs followed the same trend as observed in the other response parameters. Pigs on T4 recorded the highest significant (P<0.05) changes in chest girth, height at withers and body length. It is concluded that feeding growing pigs at level of 4% of their body weight leads to optimum performance and better economic returns.
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