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Articles by I. Udeh
Total Records ( 7 ) for I. Udeh
  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.
  Bishop O. Ovwigho , F.U.C. Mmereole , I. Udeh and P.O. Akporhuarho
  The study was an inter-disciplinary one designed to investigate the constraints relevant to different poultry production systems. The sample size was 241 poultry farmers made up of extensive (210), semi-intensive (5) and intensive (26). A four-point rating scale was used to measure the constraints. Mean, Analysis of variance and correlation matrix were used in data analysis. The constraints faced by the extensive poultry farmers were inability to diagnose sick birds (M = 3.45), lack of market for eggs (M = 2.52), egg cracking (M = 2.98), lack of finance (M = 3.44) and loss of birds/eggs to thieves, predators and hazards (M = 3.17). The constraints faced by semi-intensive poultry producers were inability to diagnose sick birds (M = 4.00), lack of feeds (M = 3.00), transportation difficulties(M = 2.80), loss of birds and eggs to predators, thieves and hazards(M = 2.60), lack of finance(M = 3.80) and egg cracking (M = 3.40). The constraints to intensive poultry producers were mortality of adult bids (M = 2.85), diseases out-break (M = 2.58), lack of feeds (M = 2.88), transportation difficulties (M = 3.23), lack of finance (M = 2.65.), feather pecking/cannibalism (M = 3.00) and difficulties in sourcing for day-old chicks (M = 2.65). Lack of finance was a common constraint in the three systems of poultry production. There was a significant difference (p<0.05) in the responses of the extensive, semi-intensive and intensive poultry farmers to the constraints facing poultry production in the study area. Adequate finance is needed to boost poultry production in the study area.
  F.U.C. Mmereole and I. Udeh
  In a 2x4 factorial arrangement, the effect of genotype, diet and their interaction on body weight and weight gain of the F1 crosses between the local chicken and Barred Plymouth Rock were investigated. Birds of each genotype were separated into two dietary groups at day old. One group was placed on layer type diets and other on broiler type diet. The body weights and weight gains of the two diet groups were monitored up to 12 weeks of age. The effect of genotype by diet interaction on body weight and weight gain was not significant (p>0.05) throughout the period. Birds on broiler diet regime were significantly (p<0.01) heavier at 8 and 12 weeks of age compared with those on layer type diets. The effect of genotype on bodyweight was significant throughout the 12 week period and significant in weight gain at the periods of 0-4 weeks and 4-8 weeks of age only. During these periods, the F1 reciprocal crossbred groups (G2 and G3) compared favourably with the exotic (G4) in weight gain indicating that the local chicken could be used in crosses with the exotic birds for the production of table birds, which are adapted to the local harsh environmental conditions and which are resistant to most of the endemic diseases.
  I. Udeh
  The daily egg production records obtained from two strains of layer type chicken for a period of 16 weeks were used to estimate the repeatability of egg number and egg weight in this population. There were 50 pullets for each strain. The pullets were housed in single bird cages and monitored for egg number and egg weight. The egg numbers were summarized on monthly basis for four months while egg weights were recorded at first egg, 30 and 40 weeks respectively. The results indicate that the repeatability estimates for monthly egg numbers ranged from 0.12-0.85 in strain 1 and 0.05-0.62 in strain 2. The repeatability estimates for egg numbers for the four months taken together were low in strain 1 (R = 0.17) and strain 2 (R = 0.07). The repeatability estimates for weight of first egg, egg weight at 30 and 40 weeks were generally low in the two strains of chicken and ranged from 0.04-0.19. The only exception was egg weight at 40 weeks in strain I (R = 0.44). The low repeatability estimates recorded for most of the traits imply that collection of additional records and improvement of non genetic factors influencing egg production will improve the accuracy of characterizing the inherent transmitting ability of the birds in these traits.
  I. Udeh
  The interrelationship among Age at First Egg (AFE), Body Weight at First Egg (BWFE) and Weight of First Egg (WFE) and their inheritance were studied in the F1 crossbred groups generated from the mating of inbredlines of two exotic and the local chickens. The birds were reared on deep litter pens from day old to 24 weeks of age when all the groups had started laying. The results indicated that the F1 crossbred groups differed significantly (p<0.01) with respect to AFE, BWFE and WFE. Sire influence as well as non additive genetic effects were responsible for the inheritance of AFE of the crossbred groups while their BWFE were controlled by the dominant genes transmitted from the exotic parent. It was also observed that WFE of the crossbred groups were influenced by both additive and dominance gene actions. The results further showed that BWFE and WFE were closely related in all the F1 crossbred groups while correlated responses were found among AFE, BWFE and WFE only in the combined F1 crosses of the local and pure black groups. The implication of this result was that selection for any of these traits could give positive response to others.
  I. Udeh and S.I. Omeje
  The objective of this study was to compare the growth and short term egg production of two exotic and the local chicken with those of their F1 inbred progenies in order to determine the effect of one generation of full sib mating on these traits. The two exotic chickens were H and N Brown Nick (strain 1) and Black Olympia (strain 2) while the local chicken was strain 3. The experimental birds were raised in deep litter pens from day old to 40 weeks of age. The coefficient of inbreeding of the three strains were as follows: strain 1 (10.80%), strain 2 (9.00%) and strain 3 (11.80%). Body weight, weight gain, age at first egg, age at peak egg production, egg weight, hen day rate and feed per dozen eggs were significantly (p<0.01) depressed in the two exotic (strains 1 and 2) but not in the local chicken except age at peak egg production. The parent consumed significantly (p<0.01) more feed to first egg compared with the inbred progeny of strain 1. The reverse was the case in strain 2. Total feed to first egg was similar in both generations of strain 3. The inbred progeny generation of the two exotic strains recorded more mortality compared with the parents. Both generations of strain 3 did not record any mortality during the laying period. It was concluded that generating replacement stock through inbreeding should be avoided in the exotic chicken but not in the local type.
  J.O. Isikwenu , I. Udeh and I. Ifie
  The effect of replacing Groundnut Cake (GNC) with enzyme supplemented Brewer’s Dried Grains (BDG) at 0, 25, 50, 75 and 100% graded levels in cockerel chicks at 6-11 weeks of age was investigated. Five dietary treatments were formulated to be isonitrogenous and isocaloric to provide 20% crude protein and 2900 kcal/kg metabolizable energy. Two hundred and twenty-five 5 weeks old cockerel chicks (Abor-Acre breed) were randomly allocated to five treatments replicated thrice with 15 cockerels per replicate, fed and watered ad libitum in deep litter pens for 6 weeks. Means of body weight, total weight gain, daily weight gain, feed intake, feed: gain ratio, blood parameters and economic assessment of cockerels fed the control diet, 25 and 50% enzyme supplemented brewer’s dried grains diets were significantly (p<0.05) better than those fed 75 and 100% inclusion levels. The use of enzymes supplemented BDG was more profitable than GNC in cockerel’s diets when the replacement do not exceed the 50% level. Mortality ranged from 1.95-3.56%.
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