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Articles by O.M. Momoh
Total Records ( 4 ) for O.M. Momoh
  J.O. Egahi , N.I. Dim and O.M. Momoh
  The effects of crossbreeding and reciprocal crossing on egg weight, hatch weight and growth pattern was studied in various crossing in three genetic groups (normal feathered, frizzle and naked neck) of the native chickens of Nigeria. The interrelationships between these traits were also determined. There was no significant difference (p<0.05) between the main cross and reciprocal crosses in the genetic groups for egg weight and hatch weight of chicks. Similarly, using either the normal feathered or frizzle feather as males in a normal x frizzle feathered cross has no significant variation (p<0.05) on post hatch weight gain to 20 weeks of age. However, post hatch weight gain taken 4 weekly to 20 weeks of age varied significantly between pairs of crosses (main and reciprocal) respectively in the normal feathered x naked neck and frizzle feather x naked neck genetic groups. In these genetic groups, using frizzled feathered and naked neck males recorded a significant (p<0.05) advantage in post hatch weight gain to 20 weeks of age in the respective breeding groups. Egg weight had a high and significant (p<0.01) coefficient of correlation with hatch weight and body weight at 4 weeks of age. Similarly, there was a high and significant coefficient of correlation (p<0.01) between body weight at 8 weeks of age and body weights at 12, 16 and 20 weeks of age. Selection for higher body weight birds meant for breeding could therefore be done at 8 weeks to reduce the cost of raising the native birds to sexual maturity before selection.
  O.M. Momoh , C.C. Nwosu and I.A. Adeyinka
  The Nigerian local chickens were grouped on the basis of body size and body weight into Heavy Ecotype (HE) and Light Ecotype (LE). Comparative evaluation of growth traits; Body Weight (BWT), Body Weight Gain (BWG) and Feed Conversion Ratio (FCR) at 4-weekly intervals (from 0-20 weeks) of HE, LE and their F1 crosses; HE x LE - Main Cross (MCX) and LE x HE - Reciprocal Cross (RCX) were carried out. The total of 214, 142, 190 and 185 day-old chicks of HE, LE, MCX and RCX, respectively were used for the study. The chicks in all the genetic groups were raised on deep litter pens from 0-20 weeks using standard management procedures. Data were subjected to analysis of variance. Results showed that the HE differed (p<0.05) from the LE in BWT (0-20 weeks). Crossing the HE with LE appeared to have closed the gap between HE and LE in BWT as there were no significant differences (p>0.05) between the BWT of HE and the crossbred groups as from 8-20 weeks of age. The crossbred groups quickly overcame the initial set backs resulting from maternal/sire-dam interaction effects and grew significantly heavier than the straight bred heavy and light ecotypes during the period, 12-20 weeks of age. FCR showed highly significant (p<0.001) difference among the genetic groups which indicates differences in maintenance requirements. On the whole, results of FCR showed that the local chickens are less efficient in feed utilization.
  O.M. Momoh , A.O. Ani and L.C. Ugwuowo
  Adaptation of the local chickens in Nigeria to the different agro-ecological zones has produced ecotypes that can be conveniently classified on the basis of body weight and size into two viz; Heavy Ecotype (HE) and Light Ecotype (LE). These distinct types may differ in their egg production characteristics. Short-term egg production and egg quality characteristics of HE and LE and their F1 crosses (HExLE and LExHE) were studied. The objective of the study was to evaluate the short-term egg production and quality traits of the HE, LE and their F1 reciprocal crosses. Data on percent hen-day production, egg number per hen, egg weight and egg mass of 50 pullets each of HE, LE, HEXLE and LEXHE were collected. Also, external and internal egg quality traits were assessed on a total of 640 eggs. Data were subjected to ANOVA technique. Result showed that there was no significant (p>0.05) genetic group effect on short-term percent hen-day production, egg number and egg mass. However, genetic group significantly affected egg weight (p<0.05). Genetic group effect was significant (p<0.01) in all the egg quality traits studied except shell weight. The crossbred groups demonstrated heterotic effects in egg width and egg shape index but their performances in the other egg quality traits remained intermediate between the two parents. On the basis of short-term egg production the HE and LE may not be considered as distinct strains. Egg quality traits obtained are comparable with most exotic breeds thus demonstrating high egg quality traits of the local chickens of Nigeria.
  J.O. Egahi , N.I. Dim , O.M. Momoh and D.S. Gwaza
  Ninety (90) captive adult normal feathering female Nigerian local chicken in an ongoing study were scored for phenotypic characteristics (variation in plumage and shank colour, presence of ear lobe, ear lobe colour, comb type, head shape and ptilopody). Sole (black, white and light brown) and mottled plumages were dominant and had an occurrence of 54.38 and 38.46% respectively. Shank colour was predominantly black (42.22%). Comb type varied from pea, rose, walnut to single with a percentage occurrence of 18.18, 22.08, 15.58 and 44.16 respectively in the population studied. 82.05% of the population had plain head shape while 70% showed the presence of ear lobes dominated by white colour (73.21%). Ptilopody was observed in 5.41% of the population. The population of Nigerian local chicken studied showed heterogeneity in the phenotypic traits considered and therefore present a genetic pool from which selection could be made.
 
 
 
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