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Item Relationship among Liveweight and Body Dimensions of the Greater Cane Rat (Thrynomys swinderianus)(2021) Durowaye, A.K.; Salako, A.E.; Osaiyuwu, O.H.; Fijabi, O.E.The objective of this study was to predict the live weight (LW) of domestically kept Grasscutters from some morphological parameters. The study was carried out at the Grasscutter section of FAK Farms, Apata, Ibadan. Data were recorded on body length (BL), tail length (TL), heart girth (HG), wither height and head length (HL) and body weights of 45 animals (25 females and 20 males) selected at random. Body weights and linear body measurements were recorded for the animals at 3, 6, 9 and 12 months of age using the simple kitchen digital weighing balance and traditional tape measure respectively and the data obtained were subjected to descriptive statistics, Pearson correlation and regression analysis (P=0.05). Mean body length, tail and head lengths, heart girth and wither height were 51.38±3.03cm, 16.76±1.05cm, 10.01±0.42cm, 28.90±1.39cm and 13.66±0.75cm respectively for the male Grasscutters and 45.92±10.01cm, 14.62±0.84cm, 9.40±0.42cm, 28.06±1.41cm and 13.83±0.78cm respectively for the female Grasscutters. The correlation coefficients between LW and body measurements ranged from 0.251 to 0.909 for the male grasscutters and 0.347 to 0.945 for the female grasscutters with the highest correlation of 0.909 and 0.945 for the association between liveweight (LWT) and HG for males at 12 months of age and females at 9 months indicating sexual dimorphism. The coefficients of determination (R2) for the prediction equations recorded highest for heart girth {LWT= -0.101+0.095HG (82.6%)} at 12 months and {LWT= -2.671+0.148HG (89.4%)} at 9 months for the male and female Grasscutters respectively. Using the linear function from the R2 value, BL, WH and HG were better predictors of LW than TL and HL. The best predictor of body weight was heart girth for both the male and the female. In conclusion, the use of BL, WH and HG in a given function explained better the variation in LW than the use of just one body measurement and can provide a basis for selection.Item Genetic diversity at four Nigerian sheep breeds assessed by variation of albumin and carbonic anhydrase in cellulose acetate electrophoretic systems(Faculty of Agriculture, 2018) Osaiyuwu, O.H.; Akinyemi, M. O.; Salako, A.E.; Awobajo, O.K.The aim of the study was to evaluate the occurrence and distribution of variations in blood protein markers in sheep breeds in Nigeria and to evaluate the relationships that exist among them. Atotal of 100 sheep comprising of twenty-five each of Balami, Uda, Yankassa and West African Dwarf (WAD) breeds were sampled for biochemical studies. Blood was collected to determine variations at the Albumin and Carbonic Anhydrase (CA) structural protein loci using F S A B cellulose acetate electrophoresis. All tested loci were polymorphic yielding four allelic variants (CA , CA , Alb , and Alb ) at the two protein loci. Genetic variability in the studied population was accessed using heterozygosity (observed – Ho and expected – He), effective number of alleles (Ne), fixation index (F) and gene flow (Nm). Genotypic frequencies ranged from 0.01 to 0.62 for CA and 0.25 to 0.49 for Alb loci. Estimated heterozygosity values ranged from 0.32±0.28 at Balami sheep to 0.70±0.22 in WAD with a global average estimated at 0.43±0.09 for all the breeds studied. The gene flow values for each of the loci studied were 0.82 and 1.24 for Alb and CA, respectively, with an average value of 1.03. The results showed that Yankassa and Balami sheep populations are more genetically (Nei's genetic identify value – 0.99) alike compared to Yankassa and WAD (0.73). Based on the values of heterozygosity (mean He =0.70 and Ho =0.45) assessed by variation of albumin and carbonic anhydrase the most genetic diverse is WAD sheep breed among the studied populations.Item Frequencies of the Transferrin Alleles and Genotypes in West African Dwarf Goats of Southwestern Nigeria(2018) Awobajo, O.K.; Salako, A.E.; Osaiyuwu, O.H.; Akinyemi, M.O.The aim of this study was to determine the frequencies of Transferrin alleles and genotypes in West African Dwarf (WAD) goat. 140 adult WAD goats, maintained in four Southwestern States of Nigeria were used in the study. The polymorphism of transferrin was determined using Cellulose Acetate electrophoresis technique. It was found that the transferrin was controlled by two codominant alleles (TfA and TfB) in WAD goats. These two alleles, because of the codominant nature of inheritance, control the occurrence of three transferrin genotypes in the analyzed populations. The first two (TfAA and TfBB) were homozygous while the third one (TfAB) was heterozygous. The TfAB genotype was predominant with frequency of 0.90, 1.00, 0.87 and 0.55 in Ogun, Ondo, Osun and Oyo States respectively with a mean frequency of 0.83±0.20 while TfBB genotype was least common except for population from Osun State with a frequency of 0.05, 0.00, 0.22 and 0.15 in Ogun, Ondo, Osun and Oyo States respectively with a mean frequency of 0.08±0.07. The frequencies of transferrin alleles were 0.50, 0.50, 0.45 and 0.58 for TfA and 0.50, 0.50, 0.55and 0.43 for TfB in Ogun, Ondo, Osun and Oyo States respectively with a mean frequency of 0.49±0.05. Transferrin system showed genetic equilibrium in the analyzed population (χ2 value = 1.780). The observed heterozygosity was 0.91, 1.00, 0.87 and 0.55 43 in Ogun, Ondo, Osun and Oyo States respectively with a mean frequency of 0.84 and average Fis value of -0.6Item Analysis Of Genetic Structure Of West African Dwarf Goats By Allozyme Markers(2016) Awobajo, O.K.; Salako, A.E.; Akinyemi, M.O.; Osaiyuwu, O.H.Genetic variation at three allozyme (Haemoglobin, Carbonic Anhydrase and Transferrin) loci and popula-tion structure hypothesis were examined for West African Dwarf goat populations in four Southwesternstate of Nigeria. One hundred and forty animals, twenty from each sampling area comprising Ijebu-Ode and Ado-Odo, (Ogun state), Ondo, (Ondo state), Ile–Ife, Osogbo and Iwo, (Osun state), and Ibadan,(Oyo state), were randomly selected. Estimates of genetic variability such as effective number of allelesand gene diversities revealed substantial genetic variation frequently displayed by allozyme markers. Numbers of alleles observed across the allozyme loci varied from 246 to 250 with an overall meanof 247.33 ± 2.31. Average polymorphism across the studied loci and expected gene diversity in thepopulation were 0.63 ± 0.09 and 0.44 ± 0.09, respectively. Population was observed to be significantlydifferentiated into different groups, and showed fairly high level of outbreeding (f = −0.16 ± 0.44) andexcess heterozygosityItem Analysis Of Genetic Structure Of Nigerian West African Dwarf Goats By Microsatellite Markers markers(2015) Awobajo, O.K.; Salako, A.E.; Osaiyuwu, O.H.Genetic variation at 12 microsatellite loci and population structure hypothesis was examined for West African Dwarf (WAD) goat populations found in four Southwestern states in Nigeria. Estimates of genetic variability such as effective number of alleles and gene diversities revealed substantial genetic variation frequently displayed by microsatellite markers. Number of alleles observed across the microsatellite loci varied from 6 to 17 with an overall mean of 10.75 ± 3.22. Average polymorphism across the studied loci and expected gene diversity in the population were 1.66 ± 0.49 and 0.72 ± 0.17, respectively. Population was observed to be significantly differentiated into different groups, and showed fairly high level of inbreeding (f = 0.95 ± 0.15) and global heterozygote deficit.Item Factor Analysis of the Morphostructure of Mature Balami Sheep(2010) Osaiyuwu, O.H.; Akinyemi, M.O.; Salako, A.E.Ten body measurements were taken on 100 Balami sheep aged 18-24 months within the humid southwest Nigeria. The body measurements were Wither Height (WH), Body Length (Bl), Rump Height (RH), Rump Width (RW), Rump Length (RL), Shoulder Width (SW), Tail Length (TL), Heart Girth (HG), Neck Circumference (NC) and Body Weight (BW). The study was aimed at investigating the variance structure and to provide a description of the conformation of the sheep using a cluster analysis. Applying wither height for size estimation, the animal measured 83.96±5.99 cm. The other body measurements for the age group were BL = 96.06±11.45 cm, RL = 28.13±5.19cm,RW = 23.14±2.07 cm, RH = 87.18±5.99cm, SW = 27.85±4.37 cm, TL = 57.56±4.56 cm, HG = 95.68±5.31 cm, NC = 41.26t8.36cm and BW = 53.01±9.50kg. Variability was high within body measurementsItem Body Dimensions Of Fulani And Yoruba Ecotype Chickens Under Intensive Systems Of Management(2009) Osaiyuwu, O.H.; Salako, A.E.; Adurogbangban, O.One hundred and thirty- three (133) day old chicks consisting of sixty-seven (67) Fulani ecotype chicks and sixty-six (66) Yoruba ecotype chicks were used in a 12-weeks study to compare body weight and 10 body parameters of birds under the intensive system of management. Results showed that the Fulani ecotype chicks had better live weight from week 1 - 12 (p>0.05) (live weight: 32.30±3.74 - 461.50±102.06g for females and 34.00±3.73- 552.43±104.98g for males) while the Yoruba ecotype chicks had lower live weights (24.27±1.55¬ 394.46±29.86g for females and 24.09±1.48- 395.92±17.85g for males respectively). The Fulani type also had superior values for breast breadth and length, with values ranging from 2.06±0.37- 11.14±1.49cm for male breast length and 1.92±0.28- 10.45±1.14cm for female breast length. The breast breadth had values of 2.60±0.53- 2.60±0.53cm for males and 2.64±0.49- 8.60±0.99cm for females. The Yoruba ecotype chickens however had superior values (p>0.05) for comb length (0.58±0.9- 2.30±0.37cm for males, 0.62±0.09¬ 1.72±0.19cm) and beak length (1.32±0.11- 2.94±0.13cm for males, 1.27±0.08-2.82±0.16cm for females), throughout the study period. Wing length also changed in the same way from week 7 for females and week 9 for males to favour values recorded for the Yoruba ecotype chickens. All other parameters were higher (p>0.05) for the Fulani ecotype chickens. It was concluded that the Fulani ecotype chicken has potentials to be selected as meat type chickens while the Yoruba ecotype chickens has potentials to be selected more as egg type chickens.Item Biochemical Differentiation of Selected Indigenous Cattle Breeds in Nigeria(2018) OIadepo, A.D.; Salako, A.E.; Akinyemi, M.O.; Osaiyuwu, O.H.Variations in genetic resources are the basis for effective genetic improvement in farm animals. Population differentiation is used for objective choice of parental genotypes that constitutes new hybrids in crossbreeding. In Nigeria, population characteristics of some selected indigenous cattle breeds have not been fully documented. Therefore, biochemical differentiation of some selected indigenous cattle breeds in Nigeria was assessed using their blood protein polymorphism. Blood samples (5mL) were taken underneath the fail by venipuncture from 40 cattle randomly selected from each of the five selected breeds. The samples were subjected to cellulose acetate electrophoresis to determine the genetic variants of haemoglobin (Hb), carbonic anhydrase (CA) and transferrin (Tf) following standard procedure. Data were analyzed using allele frequencies and duster analysis. Allele frequencies ranged betweenO.10 (H b *) and 0.90 (HbB+), 0.11 (CAR) and 0.89 (C A ^) and 0.02 (T F) and 0.49 (T F ) across the breed. Two main dusters from the dendrogram were observed for each of Hb, CA and Tf. Genetic variants of transferrin were largest within breed which indicated the potential for selection