DSpace Collection: Journal Articles
http://repository.fuoye.edu.ng:80/handle/123456789/107
Journal Articles2024-03-25T05:45:42ZGoat farming characteristics result output
http://repository.fuoye.edu.ng:80/handle/123456789/2319
Title: Goat farming characteristics result output
Authors: Jesuyon, O. M. A2020-07-21T00:00:00ZComparison of live weight and body measurements of broiler Strains using Bartlett Factor Scores in Multiple Regression
http://repository.fuoye.edu.ng:80/handle/123456789/1430
Title: Comparison of live weight and body measurements of broiler Strains using Bartlett Factor Scores in Multiple Regression
Authors: Jesuyon, O. M. A; Oyelola, E. A.
Abstract: In order to compare live weight and body conformation of Arbor Acres (AA) and Annak (AN) broilers under
same management and environment, the body weight and body dimensions of a population of one hundred
each of Arbor Acres and Annak broilers were collected in a 56-day trial in Ibadan, Nigeria. Eight zoometric
measurements namely Live weight (g), Abdominal Circumference, Abdominal length, Breast width, leg
length, Height, Wing length and Thigh circumference (all in cm) were recorded for the study. Descriptive
statistics, Bartlett Factor scores in multiple linear regression procedure with stepwise method of SPSS Version
17 were employed to compare body parameters of strains. Results indicated that Arbor Acres was heavier by
23.5%, and possessed wider breast by 4.9% than Annak strain at 8 weeks. Regressed normal equations had
high Variance Inflation Factor (VIF) values indicating multi-collinearity among independent variables, thus
reducing its predictive ability. The loading structure revealed basic differences in body conformation structure
between AA (Body and Thigh Factors) and AN (Breast and Height Factors) strain and for the mixed data of
both broilers as an index for broilers generally (Thigh/Breast and Body Factors). Bartlett factor scores in
multiple linear regression equations yielded highly significant comparative equations with p<0.0001; and
intercept of 825.51, 788.69 and 807.10 indicating differences in growth of Arbor Acres, Annak and for mixed
population of both strains of broilers.2016-09-18T00:00:00ZCOMPARISON OF EARLY SEXUAL MATURITY CHARACTERISTICS BETWEEN BOVAN NERA AND ISA BROWN PARENT STOCK LAYER STRAINS AS INFLUENCED BY 10-WEEK BODY WEIGHT
http://repository.fuoye.edu.ng:80/handle/123456789/1429
Title: COMPARISON OF EARLY SEXUAL MATURITY CHARACTERISTICS BETWEEN BOVAN NERA AND ISA BROWN PARENT STOCK LAYER STRAINS AS INFLUENCED BY 10-WEEK BODY WEIGHT
Authors: Jesuyon, O. M. A
Abstract: The study was conducted to compare early sexual maturity characteristics between Bovan Nera
and Isa Brown Parent stock chickens reared in a commercial breeding system in Ibadan, humid
Tropical Nigeria. Records on Pullet weight at 10 weeks (PW10, g), Feed-intake at 10-weeks
(FI10, g), Total feed intake from11 weeks to first egg (FI11FE, kg), weight gain from 11 weeks
to first egg (WG11FE, g), Feed intake at first egg (FIFE, g), pullet-weight at first egg (PWFE,
g) and pullet-age at first egg (PAFE, days) were culled from the parent stock breeding farm
records of CHI Farms Ltd. Ibadan; covering 1999 to 2008. The effect of PW10on FI10, FI11FE,
WG11FE, FIFE, PWFE and PAFE was investigated. A total of 20 flocks of each strain were
compared. Data were analyzed using ANOVA, GLM, Tukey’s T-test, correlation and
regression procedures of SAS® (1999) in randomized complete block (RCBD) design. Findings
revealed that three body weight classes at 10-weeks (<700, 801-900 and >900 g) caused
significant differences between strains in WG11FE, PWFE and PAFE. The 701-800 g body
weight group produced no significant (p>0.05) difference between the two strains. PWFE was
positively related with PAFE in BN (R2=0.11) and IB (R2=0.71). Strain averages revealed
significant (p<0.05) differences between strains in all characteristics, and this led to 6-day
difference in PAFE between BN and IB strains. The prediction of PWFE was highly influenced
(p<0.0001, R2≥0.82) by PW10 and WG11FE in both strains. All equations obtained were
significant (P<0.0006-0.04), revealed minimal basal genotypic differences between strains, and
gave varying R2 values from 0.00-0.86. The equations elicited the underlining causes of
variability between Bovan Nera and Isa Brown parent stock chicken. Study also revealed the
importance of PW10 for breeding and management of chicken from the 11th week to first egg.2017-07-11T00:00:00ZEffects of strain, live weight and micro-environment on body weight development of cane rat (Thryonomys swinderianus) in the humid tropics
http://repository.fuoye.edu.ng:80/handle/123456789/1428
Title: Effects of strain, live weight and micro-environment on body weight development of cane rat (Thryonomys swinderianus) in the humid tropics
Authors: Jesuyon, O. M. A; Bankole, T. O.
Abstract: Interactive effects of strain, live weight and a non-genetic factor namely micro-environment
on the live weight development of cane rats reared in captivity were investigated over a
seven-month period. A total of seventy-nine (79) cane rats (Thryonomys swinderianus)
originating from three different sources (strains) and of four body weight categories were
used for the study. The treatment design was 4x3 Factorial of Live-weightXStrain randomly
assigned to 3 Houses (block) using RCBD, while statistical analysis utilized GLM procedure
of SAS® (1999). Data were recorded monthly based on Treatment-combinations and Housemicro-
environment. Results revealed that effects of strain, live weight category and housemicro-
environment on strains were significant. Consequently, interactive effect of
strainXhouse-micro-environment was found most depressing on Lawole>FRIN>Bamidele,
while strainXlive-weight category interaction exerted most positive influence on Lawole
strain which demonstrated the highest ability for body weight development than other two
strains. Findings revealed that interactive effect of STRxHME was most significant on weight
development. Bamidele strain was identified as most acclimatized and adaptable of the three
strains based on least body weight sensitivity and variation between HMEs. Different strains
of cane rat in captive rearing systems would exhibit different and specific reaction norms
under interaction of strain, Body weight and House-micro-environment. This knowledge is
useful for feeding regimes, husbandry and breeding schemes for cane rats in humid tropics.2017-03-04T00:00:00ZRelationship among cane rat (Thryonomys Swinderianus) families of unknown genetic origins in Ibadan Nigeria
http://repository.fuoye.edu.ng:80/handle/123456789/1427
Title: Relationship among cane rat (Thryonomys Swinderianus) families of unknown genetic origins in Ibadan Nigeria
Authors: Jesuyon, O. M. A; Oseni, S. O
Abstract: As population of cane rats in the wild decline due to high rate of exploitation
and destruction of their natural habitat, their continued existence is threatened
and endangered. Domestication to increase their production lead to high
demand for quality foundation stock. The objective of this study was to
explore and understand underlying relationships among cane rats of unknown
genetic origin from three different farm (family) Sources. Monthly liveweight
measurements were recorded in randomized complete block design,
using Source as treatment and Sex as block. Data were subjected to Analysis
of Variance (ANOVA), Correlation, Multiple Linear regression (MLR) analysis,
Squared Euclidean (Seuclid) distance procedures and Cluster Analysis of SAS,
to study the genetic properties and structure of Family sources with a view to
formulating appropriate strategies towards their management, breeding and
conservation. Results of ANOVA showed significant (P<0.05) differences for
mean live weight of 3.78, 3.51 and 3.11kg, for FRIN, Bamidele and Lawole
males. MLR parameters revealed higher basic growth metabolism in males
than females, and in FRIN than other Families of cane rats. Genetic correlation
coefficients were low, indicating distant relationship by descent among family
sources. Seuclid genetic distance measures between Lawole and Bamidele was
largest within males, females and mixed populations, among other family pairs.
Dendrogram from cluster analysis revealed larger dissimilarity between the
male than female families and unfolded the genetic diversity between Bamidele
and FRIN/Lawole populations. These observed genetic diversities are important
for designing breeding, improvement and conservation programmes for cane
rat in the environment.2016-06-26T00:00:00ZMULTIVARIATE ANALYSIS OF SEXUAL MATURITY CHARACTERISTICS OF COCKERELS OF BOVAN NERA AND ISA BROWN PARENT STOCK STRAINS IN IBADAN NIGERIA
http://repository.fuoye.edu.ng:80/handle/123456789/1329
Title: MULTIVARIATE ANALYSIS OF SEXUAL MATURITY CHARACTERISTICS OF COCKERELS OF BOVAN NERA AND ISA BROWN PARENT STOCK STRAINS IN IBADAN NIGERIA
Authors: Jesuyon, O. M. A
Abstract: The objective of the study was to elucidate some of the factors that affect growth and development of breeder cockerels on deep-litter system in the environment. Sexual maturity characteristics in cockerel are important breeding and management indices. Ten records namely cockerel weight at 10 weeks (CW10Wks), cockerel weight at first spermatozoa production (CWFS), cockerel weight at full maturity (CWFM), Feed uptake at 10 Weeks (FU10Wks), Feed uptake at first spermatozoa production (FUFS), feed uptake at full maturity (FUFM), Age at first spermatozoa production (AFS), Age at full maturity (AFM), Batch and genotype were extracted from the record books of a popular Parent stock breeding
farm in Ibadan, Nigeria. The study materials were Bovan Nera and Isa Brown Strains. Data were grouped into seasons, maturity group and genotype before they were subjected to ANOVA (p<0.05) and multivariate analysis using SAS (V8) and SPSS (17.0) softwares. AFM differ significantly (p<0.05) between genotypes in the wet season but was reversed in rank between the two maturity status groups in the environment. Principal Factor Analysis (PFA) elicited Age/maturity status/batch, Cockerel weight, random environmental, Full maturity and Seasonal Factors as important for breeding and management of cockerels on the deep litter in the environment. The lack of significant difference in CWFM between genotypes was an indication of the high level of adaptability of both genotypes to the humid environment.
Keywords: Age at first spermatozoa production, Cockerel weight at 10 Weeks, Cockerel weight at first spermatozoa production, Early maturity characteristics, hot-humid areas.2015-03-15T00:00:00ZMULTIVARIATE ANALYSIS OF PRODUCTION VARIABLES OF LAYER CHICKENS ON DEEP-LITTER IN THE HUMID TROPICS
http://repository.fuoye.edu.ng:80/handle/123456789/1328
Title: MULTIVARIATE ANALYSIS OF PRODUCTION VARIABLES OF LAYER CHICKENS ON DEEP-LITTER IN THE HUMID TROPICS
Authors: Jesuyon, O. M. A
Abstract: Chicken breeding is a technical enterprise that involves specific and timely strategies to manipulate latent Factors. It is also intensive and involves high managerial competence for high profitability. Data on Hen day production, egg weight, Age in production (Prodage), Season, Strain (genotype) and Batch on weekly basis were obtained from Layer chicken from a popular chicken farm in Ibadan. These data covered the production cycle of 2 Strains – Bovan Nera and Isa Brown – of chicken. Data covered 20 batches of each strain covering a period of 10 years. Data were analyzed using the Multivariate procedures of descriptive, ANOVA (P<0.05), Pearsons’ Correlation, Principal component Analysis (PCA) and Common Factor analysis (CFA). Findings from the study indicated better productive indices for Wet than Dry season. PCA extracted 3 components while the Varimax rotation with Keizer normalization produced 3 orthogonal Factors with high loadings for Prodage and egg weight under Age Factor, Batch and Season under Environmental Factors, and Hen day production and Strain under Genetic Factor. These results have implications and require management and breeding strategies to utilize them for technical efficiency in the environment.2014-01-01T00:00:00ZEffect of Seasons on the Reproductive Performance of Bovan Nera and Isa Brown Parent-stock Chickens in a Hot Humid Environment
http://repository.fuoye.edu.ng:80/handle/123456789/1325
Title: Effect of Seasons on the Reproductive Performance of Bovan Nera and Isa Brown Parent-stock Chickens in a Hot Humid Environment
Authors: Jesuyon, O. M. A; Salako, A. E.
Abstract: Seasons play an important role in the performance of breeder chickens, but lack of adequate records on its specific effects in specific seasons could influence the efforts of breeders to improve on local ecotypes of chicken for standardization into breeds. This is why Nigeria still depends mainly on imported breeds of chicken for commercial production of chicken. In this study, the influence of Early Wet (EW), Late Wet (LW) and Early Dry (ED) and Late Dry (LD) seasons on reproductive parameters of Bovan Nera (BN) and Isa Brown (IB) parent-stock chickens were studied in the humid South-West Nigeria. Ten-year data on both genotypes were obtained from Ajanla Farms Hatchery Ibadan and analysed for Eggs Set (ES), Egg Fertility (EF), Egg Hatchability (EH), Pullet Day-old Chicks (PDC) and Hatching Rejects (HR) to study the effect of seasons on these parameters. ANOVA (p<0.05) showed that seasons have significant influence on EF, EH and HR in BN; and ES, EH and HR in IB. Late wet season gave the best results on reproduction thus making it potentially the most favorable season for hatching activities in both genotypes, and therefore may signal good fortune in commercial chicks production enterprises of breeder chickens in hot humid regions.2013-12-20T00:00:00ZUtilization of Genotype x Season Interaction in the Production of Layer Chickens in the Hot-humid Tropical Environment
http://repository.fuoye.edu.ng:80/handle/123456789/1324
Title: Utilization of Genotype x Season Interaction in the Production of Layer Chickens in the Hot-humid Tropical Environment
Authors: Jesuyon, O. M. A
Abstract: Genotype x Environment interaction described as change in the relative performance of a
genotype in two or more environments is a factor in the breeding of chickens in the tropics. Cock
weight, hen weight, Hen-house production, egg weight, fertility of eggs set, hatchability of eggs
set and pullet day-old chicks hatched was studied to apply the presence of this interaction for
improving chicken production in South-west Nigeria. Interaction was investigated by the
Factorial ANOVA method of SAS (1999). Results revealed that interaction in day-old chicks
production between the two genotypes was due mainly to change in scale and change in rank in
the late dry season. The knowledge of genotype-season interaction could be useful in the planning of stocking dates of commercial layer chicken enterprises in the environment.2014-09-07T00:00:00ZVariability and predictability of productive and body traits of Fulani ecotype chicken
http://repository.fuoye.edu.ng:80/handle/123456789/1323
Title: Variability and predictability of productive and body traits of Fulani ecotype chicken
Authors: Jesuyon, O. M. A; Salako, A. E.
Abstract: Improvement of the domestic chicken has dominated the effort of indigenous breeders in Nigeria in
recent times. Three hundred and fifty-seven (357) Fulani ecotype chickens were surveyed and assessed
for their phenotypic and productive characteristics in Osun State, Nigeria. Mature weight (kg), comb
size, wattle size, breast length, breast width, leg length (all in cm); egg weight (gm), clutch size were
examined and classified. A higher level of variability was revealed in comb size, wattle size, egg weight,
and clutch size within the hen population of each local government; and in leg length within Orolu
cocks and hens as shown by their coefficient of variation (CV), respectively. Strong and significant
association was observed between mature weight and wattle size, mature weight and comb size, and
between wattle size and comb size in the cocks; and between egg weight and egg clutch size in hens.
Breast length and breast width were best predictors of each other while mature weight was best
predicted by wattle size in cocks. Breast length was predicted by mature weight and leg length, breast
width was predicted by mature weight and, mature weight was predicted by the combination of leg
length, breast length and breast width in hens. All parameters were more accurately predicted in cocks
than in hens. Statistical modelling revealed sexual dimorphism on all equations.2013-12-12T00:00:00ZApplication of genotype sensitivity to selection between two exotic strains of chickens in humid tropical environment
http://repository.fuoye.edu.ng:80/handle/123456789/1322
Title: Application of genotype sensitivity to selection between two exotic strains of chickens in humid tropical environment
Authors: Jesuyon, O. M. A
Abstract: Genotype sensitivity as a change in the relative performance of a genotype in the presence of two or more environments could be an important factor in the breeding of exotic birds in the tropics. Farm records covering 10 years (1999 - 2008) were employed to study the effect of seasons on genotype sensitivity and their usability for selection in the breeding of exotic Parent stock chickens of Bovan and ISA origins in South-West Nigeria. Cock weight, hen weight, Hen-day production, egg weight, fertility of eggs set, hatchability of eggs set and pullet day-old chicks hatched were examined. Sensitivity analysis was conducted using the regression procedures of Microsoft Excel, 2007. Results revealed a lack of significant difference between genotypes in sensitivity indices within seasons, in body weight, HDP and egg weight. Due to Interaction between genotypes and seasons, the genotype sensitivity values demonstrated lack of definite pattern with the output levels of FES and HES between genotypes. Genotype sensitivity in the presence of genotype – season interaction, could be reliable for making choices between chicken genotypes in the humid tropics, especially in early dry season.2013-01-01T00:00:00ZCanonical discriminant analysis of early maturity traits of parent stock layer strains in the tropics
http://repository.fuoye.edu.ng:80/handle/123456789/1321
Title: Canonical discriminant analysis of early maturity traits of parent stock layer strains in the tropics
Authors: Jesuyon, O. M. A; Isidahomen, C.
Abstract: tepwise discriminant analysis was conducted to classify pullet strains into Early maturing or Late maturing. Reproductive, Age and body traits examined were Age at first egg (AFE), Hen weight at first egg (HWFE), Hen weight at 20 weeks (H20wks), Egg weight at full maturity (EWT), Hen house production at full maturity (HHP), Fertility of egg set at full maturity (FES), Hatchability of egg set at full maturity (HES) and Pullet day-old chicks hatched at full maturity (PDC). Test of equality of Class means observed significant (p<0.001) differences for AFE on the Discriminant Variables (DV) table. Box’s M indicated that the assumption of equality of covariance matrices was violated (p<0.002), but the log determinants were quite similar (11.554 to 13.544). Two body traits namely AFE and HWFE were entered by the stepwise procedure into the discriminate Function (DF). The DF revealed a significant association between Maturity Classes and all discriminators, accounting for 67.3% of between group variability, although closer analysis of the structure matrix revealed three significant predictors, namely AFE (0.771), HES (-0.314) and PDC (–0.304), while others were poor predictors (0.292 to -0.102). The stepwise procedure however identified the best set of discriminating variables in the DF for maximizing classification as AFE and HWFE. The cross validated classification showed that overall 93.3% of cases were correctly classified. The function thus obtained could be used successfully by farmers to classify any batch of Bovan Nera, Isa Brown or other Parent stock strains in tropical environment for sexual maturity status. The best discriminating pair of traits for ESM in pullets was AFE and HWFE. Results obtained significant differences between the mean of early and late maturing pullets to allow for their classification.2015-01-01T00:00:00ZSeasonal sensitivity of genotypes in the humid tropics and its application to chicken breeding
http://repository.fuoye.edu.ng:80/handle/123456789/1320
Title: Seasonal sensitivity of genotypes in the humid tropics and its application to chicken breeding
Authors: Jesuyon, O. M. A; Oseni, S. O.
Abstract: The study was aimed at elucidating the effect of seasons, namely the early wet (EW), late wet (LW),
early dry (ED) and late dry (LD) seasons, on genotype sensitivity, its magnitude and application for selection
and management of chickens of Bovan Nera (BN) and ISA Brown (IB) origins. Breeding and hatching records
from 1999 to 2008 were collected from CHI (Ajanla) Farms and hatchery records, Ibadan, Nigeria. Cock weight
(CW), hen weight (HW), hen-house egg production (HHP), egg weight (EW), fertility of egg set (FES) and
pullet day-old chicks (PDC) hatched were examined. ANOVA revealed that there was significant (P < 0.05)
genotype season interaction effect. This interaction was observed between genotypic values when compared
between seasons within parameters. Within-season sensitivity parameters indicated that BN was more sensitive
than IB inHWand FES for all seasons. In ED and LD seasons, sensitivity values were inconsistent in pattern with
output levels of FES, HES and PDC hatched because of interaction between genotypes and seasons. Within the
LW season, all sensitivity indices for genotypes were consistent in magnitude with productive and reproductive
values. Therefore, a genotype’s seasonal sensitivity indices could be utilized for direct antagonistic selection in
LW season between genotypes in humid tropics.2015-07-14T00:00:00ZSome Phenotypic Characteristics of the Fulani Ecotype Chicken in three Selected local Government Areas of Osun State, Nigeria
http://repository.fuoye.edu.ng:80/handle/123456789/1107
Title: Some Phenotypic Characteristics of the Fulani Ecotype Chicken in three Selected local Government Areas of Osun State, Nigeria
Authors: Obembe, J. B.; Jesuyon, O. M. A; Bankole, T. O.; Salako, A. E.; Akinsoyinu, A. O.
Abstract: Improvement of domestic chicken has dominated the efforts of indigenous breeders in recent times. Three hundred and fifty-seven (357) Fulani Ecotype chickens in Osun State were surveyed and assessed for their phenotypic and productive characteristics. Plumage pattern, thigh and shank colour, mature weight (kg), comb size, wattle size, breast length, breast width, leg length (all in cm); egg weight (gm) and clutch size were examined. Plumage pattern was more heterogeneous in hens, which presented a darker colour than cocks. Cream shank was most common in both sexes, while yellow and cream coloured thigh and beak were prevalent in cocks and hens. Mean mature live weight values (kg) were 2.29 and 1.44 for cocks and hens respectively. The comb size, wattle size, breast length, breast width and leg length were 5.17 and 1.65; 4.87 and 1.48; 19.92 and 17.37; 15.10 and 14.13, and 21.01 and 12.06 for cocks and hens respectively. The mean egg weight of the hen was 38.18g with an average clutch size of 6.93. A high level of variability was observed in comb size, wattle size, leg length, egg weight and clutch size as shown by their CV respectively.2011-10-10T00:00:00Z