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Adamu Isa Mani

Usmanu Danfodiyo University, Animal Science, Faculty Member

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Supervisors: Prof. W. A. Hassan, Prof. M. Jibir, Prof. A. B. Omojola, Dr M. N. Bemji (Miss), and Dr M.Wheto
Phone: +2348032196594
Address: Nigeria

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sidharth prasad mishra

West Bengal University of Animal and Fishery Sciences

Haydar al-mutar

Mohammed Abu El-Magd

Kafrelsheikh University

ahmed el sheikh

King Faisal University

Rochester Institute of Technology

Ikhide Imumorin

Agricultural Biotechnology Research Institute Of Iran

Marcos De Donato

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Papers by Adamu Isa Mani

Polymorphisms of caprine GnRHR gene and their association with litter size in West African Dwarf goats

Molecular Biology Reports, 2017

Gonadotropin-releasing hormone receptor (GnRHR) gene is considered a candidate gene for litter si... more Gonadotropin-releasing hormone receptor (GnRHR) gene is considered a candidate gene for litter size due to its critical role in regulating the activities of hypothalamo-pituitary-gonadal axis which synthesizes and releases gonadotropins. This study was designed to identify mutations within the caprine GnRHR gene and investigate their association with litter size at various parities. Polymorphisms scanning and genotyping of GnRHR gene in West African Dwarf (WAD) goats (n = 226) revealed three single nucleotide polymorphisms (SNPs), one mutation (g.-29T > G) was detected within 5′UTR region while two others (g.48G > A and g.209T > G) were identified in exon 1. Mutation at g.209T > G locus resulted in amino acid change from Methionine to Arginine at position 70 on the polypeptide residue. Based on heterozygosity and polymorphism information content (PIC), WAD goat population diversity at the SNP loci was moderate. Strong linkage disequilibrium (LD) (r 2 > 0.98) existed among the detected mutations resulting in three observed haplotypes, two (T-G-T and G-A-G) had cumulative frequency of > 97%. The mutation within 5′UTR region of GnRHR gene (g.-29T > G) is novel, being reported in goats for the first time. Association analysis revealed a significant (p < 0.05) association between allele G at g.-29T > G with higher mean litter size for homozygous (GG) mutant does compared with heterozygotes (GT) or homozygotes (TT), while the relationship between SNPs at the two loci detected in exon 1 and litter size was not significant.

Transcriptome Analysis Revealed Potential Mechanisms of Resistance to Trichomoniasis gallinae Infection in Pigeon (Columba livia)

Frontiers in Veterinary Science

Trichomoniasis gallinae (T. gallinae) is one of the most pathogenic parasites in pigeon, particul... more Trichomoniasis gallinae (T. gallinae) is one of the most pathogenic parasites in pigeon, particularly in squabs. Oral cavity is the main site for the host-parasite interaction. Herein, we used RNA-sequencing technology to characterize lncRNA and mRNA profiles and compared transcriptomic dynamics of squabs, including four susceptible birds (S) from infected group, four tolerant birds (T) without parasites after T. gallinae infection, and three birds from uninfected group (N), to understand molecular mechanisms underlying host resistance to this parasite. We identified 29,809 putative lncRNAs and characterized their genomic features subsequently. Differentially expressed (DE) genes, DE-lncRNAs and cis/trans target genes of DE-lncRNAs were further compared among the three groups. The KEGG analysis indicated that specific intergroup DEGs were involved in carbon metabolism (S vs. T), metabolic pathways (N vs. T) and focal adhesion pathway (N vs. S), respectively. Whereas, the cis/trans g...

Effects of monochromatic green light stimulation during embryogenesis on hatching and posthatch performance of four strains of layer breeder

Poultry Science

Identification of microRNA-Associated-ceRNA Networks Regulating Crop Milk Production in Pigeon (Columba livia)

Genes

Pigeon belongs to altrices. Squab cannot forage independently. Nutrition can only be obtained fro... more Pigeon belongs to altrices. Squab cannot forage independently. Nutrition can only be obtained from crop milk secreted by male and female pigeon. miRNA could regulate many biological events. However, the roles of miRNA and ceRNA in regulating crop milk production are still unknown. In this study, we investigated the miRNAs expression profile of female pigeon crop, explored the potential key genes, and found the regulatory mechanisms of crop milk production. A total of 71 miRNAs were identified differentially expressed significantly. Meanwhile, miR-20b-5p, miR-146b-5p, miR-21-5p, and miR-26b-5p were found to be the key miRNAs regulating lactation. Target genes of these miRNAs participated mainly in cell development; protein and lipid synthesis; and ion signaling processes, such as cell-cell adhesion, epithelial cell morphogenesis, calcium signaling pathway, protein digestion, and absorption. In the ceRNA network, miR-193-5p was located in the central position, and miR-193-5p/CREBRF/LO...

Monochromatic green light stimulation during incubation shortened the hatching time via pineal function in White Leghorn eggs

Background: Effect of monochromatic green light illumination on embryo development has been repor... more Background: Effect of monochromatic green light illumination on embryo development has been reported in chickens. The avian pineal gland is an important photo-endocrine organ formed by a mediodorsal protrusion during embryonic development. However, the involvement of pineal gland in the light transduction process remains to be elucidated. In the present study, we investigated the influence of monochromatic green light on hatching time and explored the possible mechanism via pineal function. Results: A total of 600 eggs of White Leghorn (Shaver strain) were incubated under photoperiods of either 12 h of light and 12 h of darkness using monochromatic green light (12L:12D group) or 24 h of darkness (0L:24D group) for 18 d. Compared to 0L:24D group, the green light stimulation shortened the hatching time without extending the hatch window or impairing hatchability. The liver of embryos incubated in the 12L:12D light condition was heavier than those of the 0L:24D group on d 21 post incub...

Hybrids Generated by Crossing Elite Laying Chickens Exhibited Heterosis for Clutch and Egg Quality Traits

Poultry Science

Analysis of Long Non-Coding RNAs and mRNAs Associated with Lactation in the Crop of Pigeons (Columba livia)

Genes

Pigeons have the ability to produce milk and feed their squabs. The genetic mechanisms underlying... more Pigeons have the ability to produce milk and feed their squabs. The genetic mechanisms underlying milk production in the crops of ’lactating’ pigeons are not fully understood. In this study, RNA sequencing was employed to profile the transcriptome of lncRNA and mRNA in lactating and non-‘lactating’ pigeon crops. We identified 7066 known and 17,085 novel lncRNAs. Of these lncRNAs, 6166 were differentially expressed. Among the 15,138 mRNAs detected, 6483 were differentially expressed, including many predominant genes with known functions in the milk production of mammals. A GO annotation analysis revealed that these genes were significantly enriched in 55, 65, and 30 pathways of biological processes, cellular components, and molecular functions, respectively. A KEGG pathway enrichment analysis revealed that 12 pathways (involving 544 genes), including the biosynthesis of amino acids, the propanoate metabolism, the carbon metabolism and the cell cycle, were significantly enriched. The ...

Genome-Wide Detection of SNP Markers Associated with Four Physiological Traits in Groundnut (Arachis hypogaea L.) Mini Core Collection

Agronomy

In order to integrate genomics in breeding and development of drought-tolerant groundnut genotype... more In order to integrate genomics in breeding and development of drought-tolerant groundnut genotypes, identification of genomic regions/genetic markers for drought surrogate traits is essential. We used 3249 diversity array technology sequencing (DArTSeq) markers for a genetic analysis of 125 ICRISAT groundnut mini core collection evaluated in 2015 and 2017 for genome-wide marker-trait association for some physiological traits and to determine the magnitude of linkage disequilibrium (LD). Marker-trait association (MTA) analysis, probability values, and percent variation modelled by the markers were calculated using the GAPIT package via the KDCompute interface. The LD analysis showed that about 36% of loci pairs were in significant LD (p < 0.05 and r2 > 0.2) and 3.14% of the pairs were in complete LD. The MTAs studies revealed 20 significant MTAs (p < 0.001) with 11 markers. Four MTAs were identified for leaf area index, 13 for canopy temperature, one for chlorophyll content ...

Characterization of gonadotropin releasing hormone receptor gene in Sokoto and Kalahari Red goats

Animal Reproduction Science

Linear Body Measurements and Slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Linear Body Measurements and Slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Journal of Animal Science Advances, 2013

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Seminal Plasma Proteome as an Indicator of Sperm Dysfunction and Low Sperm Motility

Molecular & Cellular Proteomics

Molecular mechanisms underlying sperm motility have not been fully explained, particularly in chi... more Molecular mechanisms underlying sperm motility have not been fully explained, particularly in chickens. The objective was to identify seminal plasma proteins associated with chicken sperm motility by comparing the seminal plasma proteomic profile of roosters with low sperm motility (LSM, n = 4) and high sperm motility (HSM, n = 4). Using a label-free MS-based method, a total of 522 seminal plasma proteins were identified, including 386 (~74%) previously reported and 136 novel ones. A total of 70 differentially abundant proteins were defined, including 48 more-abundant, 15 less-abundant, and seven proteins unique to the LSM group (specific proteins). Key secretory proteins like less-abundant ADGRG2 and more-abundant SPINK2 in the LSM suggested that the corresponding secretory tissues played a crucial role in maintaining sperm motility. Majority (80%) of the more-abundant and five specific proteins were annotated to the cytoplasmic domain which might be a result of higher plasma membr...

Carcass Characteristics and Meat Attributes of Pigeon (Columbia Livia) as Influenced by Strain and Sex

Linear Body Measurements and Slaughter

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Linear Body Measurements and slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Carcass Composition and Meat attributes of Pigeon ( Columba livia) as influenced by Strain and Sex

The consumption of pigeon meat if encouraged can be employed as a tool to alleviate poverty and e... more The consumption of pigeon meat if encouraged can be employed as a tool to alleviate poverty and ensure food security for economically disadvantaged peasant farmers. Pigeon meat is rarely consumed in most part of Nigeria. An experiment was carried out to evaluate carcass and meat quality of three strains of pigeon commonly found in the semi-arid region of Nigeria. A total of seventy-two matured pigeon with twenty-four from each strain were used for the study in a 3x2 (breed x sex) factorial arrangement in a completely randomized design. The strains evaluated are, Algardi, Jamul and Kura. The birds were slaughtered in batches of six, properly bled, defeathered at 85 o C and dressed. The carcasses were chilled at 2 o C for 24 h prior to cutting up into primal cuts. Samples for cooking loss, water holding capacity and shear force were taken from the breast portion.

Polymorphisms of caprine GnRHR gene and their association with litter size in West African Dwarf goats

Molecular Biology Reports, 2017

Gonadotropin-releasing hormone receptor (GnRHR) gene is considered a candidate gene for litter si... more Gonadotropin-releasing hormone receptor (GnRHR) gene is considered a candidate gene for litter size due to its critical role in regulating the activities of hypothalamo-pituitary-gonadal axis which synthesizes and releases gonadotropins. This study was designed to identify mutations within the caprine GnRHR gene and investigate their association with litter size at various parities. Polymorphisms scanning and genotyping of GnRHR gene in West African Dwarf (WAD) goats (n = 226) revealed three single nucleotide polymorphisms (SNPs), one mutation (g.-29T > G) was detected within 5′UTR region while two others (g.48G > A and g.209T > G) were identified in exon 1. Mutation at g.209T > G locus resulted in amino acid change from Methionine to Arginine at position 70 on the polypeptide residue. Based on heterozygosity and polymorphism information content (PIC), WAD goat population diversity at the SNP loci was moderate. Strong linkage disequilibrium (LD) (r 2 > 0.98) existed among the detected mutations resulting in three observed haplotypes, two (T-G-T and G-A-G) had cumulative frequency of > 97%. The mutation within 5′UTR region of GnRHR gene (g.-29T > G) is novel, being reported in goats for the first time. Association analysis revealed a significant (p < 0.05) association between allele G at g.-29T > G with higher mean litter size for homozygous (GG) mutant does compared with heterozygotes (GT) or homozygotes (TT), while the relationship between SNPs at the two loci detected in exon 1 and litter size was not significant.

Transcriptome Analysis Revealed Potential Mechanisms of Resistance to Trichomoniasis gallinae Infection in Pigeon (Columba livia)

Frontiers in Veterinary Science

Trichomoniasis gallinae (T. gallinae) is one of the most pathogenic parasites in pigeon, particul... more Trichomoniasis gallinae (T. gallinae) is one of the most pathogenic parasites in pigeon, particularly in squabs. Oral cavity is the main site for the host-parasite interaction. Herein, we used RNA-sequencing technology to characterize lncRNA and mRNA profiles and compared transcriptomic dynamics of squabs, including four susceptible birds (S) from infected group, four tolerant birds (T) without parasites after T. gallinae infection, and three birds from uninfected group (N), to understand molecular mechanisms underlying host resistance to this parasite. We identified 29,809 putative lncRNAs and characterized their genomic features subsequently. Differentially expressed (DE) genes, DE-lncRNAs and cis/trans target genes of DE-lncRNAs were further compared among the three groups. The KEGG analysis indicated that specific intergroup DEGs were involved in carbon metabolism (S vs. T), metabolic pathways (N vs. T) and focal adhesion pathway (N vs. S), respectively. Whereas, the cis/trans g...

Effects of monochromatic green light stimulation during embryogenesis on hatching and posthatch performance of four strains of layer breeder

Poultry Science

Identification of microRNA-Associated-ceRNA Networks Regulating Crop Milk Production in Pigeon (Columba livia)

Genes

Pigeon belongs to altrices. Squab cannot forage independently. Nutrition can only be obtained fro... more Pigeon belongs to altrices. Squab cannot forage independently. Nutrition can only be obtained from crop milk secreted by male and female pigeon. miRNA could regulate many biological events. However, the roles of miRNA and ceRNA in regulating crop milk production are still unknown. In this study, we investigated the miRNAs expression profile of female pigeon crop, explored the potential key genes, and found the regulatory mechanisms of crop milk production. A total of 71 miRNAs were identified differentially expressed significantly. Meanwhile, miR-20b-5p, miR-146b-5p, miR-21-5p, and miR-26b-5p were found to be the key miRNAs regulating lactation. Target genes of these miRNAs participated mainly in cell development; protein and lipid synthesis; and ion signaling processes, such as cell-cell adhesion, epithelial cell morphogenesis, calcium signaling pathway, protein digestion, and absorption. In the ceRNA network, miR-193-5p was located in the central position, and miR-193-5p/CREBRF/LO...

Monochromatic green light stimulation during incubation shortened the hatching time via pineal function in White Leghorn eggs

Background: Effect of monochromatic green light illumination on embryo development has been repor... more Background: Effect of monochromatic green light illumination on embryo development has been reported in chickens. The avian pineal gland is an important photo-endocrine organ formed by a mediodorsal protrusion during embryonic development. However, the involvement of pineal gland in the light transduction process remains to be elucidated. In the present study, we investigated the influence of monochromatic green light on hatching time and explored the possible mechanism via pineal function. Results: A total of 600 eggs of White Leghorn (Shaver strain) were incubated under photoperiods of either 12 h of light and 12 h of darkness using monochromatic green light (12L:12D group) or 24 h of darkness (0L:24D group) for 18 d. Compared to 0L:24D group, the green light stimulation shortened the hatching time without extending the hatch window or impairing hatchability. The liver of embryos incubated in the 12L:12D light condition was heavier than those of the 0L:24D group on d 21 post incub...

Hybrids Generated by Crossing Elite Laying Chickens Exhibited Heterosis for Clutch and Egg Quality Traits

Poultry Science

Analysis of Long Non-Coding RNAs and mRNAs Associated with Lactation in the Crop of Pigeons (Columba livia)

Genes

Pigeons have the ability to produce milk and feed their squabs. The genetic mechanisms underlying... more Pigeons have the ability to produce milk and feed their squabs. The genetic mechanisms underlying milk production in the crops of ’lactating’ pigeons are not fully understood. In this study, RNA sequencing was employed to profile the transcriptome of lncRNA and mRNA in lactating and non-‘lactating’ pigeon crops. We identified 7066 known and 17,085 novel lncRNAs. Of these lncRNAs, 6166 were differentially expressed. Among the 15,138 mRNAs detected, 6483 were differentially expressed, including many predominant genes with known functions in the milk production of mammals. A GO annotation analysis revealed that these genes were significantly enriched in 55, 65, and 30 pathways of biological processes, cellular components, and molecular functions, respectively. A KEGG pathway enrichment analysis revealed that 12 pathways (involving 544 genes), including the biosynthesis of amino acids, the propanoate metabolism, the carbon metabolism and the cell cycle, were significantly enriched. The ...

Genome-Wide Detection of SNP Markers Associated with Four Physiological Traits in Groundnut (Arachis hypogaea L.) Mini Core Collection

Agronomy

In order to integrate genomics in breeding and development of drought-tolerant groundnut genotype... more In order to integrate genomics in breeding and development of drought-tolerant groundnut genotypes, identification of genomic regions/genetic markers for drought surrogate traits is essential. We used 3249 diversity array technology sequencing (DArTSeq) markers for a genetic analysis of 125 ICRISAT groundnut mini core collection evaluated in 2015 and 2017 for genome-wide marker-trait association for some physiological traits and to determine the magnitude of linkage disequilibrium (LD). Marker-trait association (MTA) analysis, probability values, and percent variation modelled by the markers were calculated using the GAPIT package via the KDCompute interface. The LD analysis showed that about 36% of loci pairs were in significant LD (p < 0.05 and r2 > 0.2) and 3.14% of the pairs were in complete LD. The MTAs studies revealed 20 significant MTAs (p < 0.001) with 11 markers. Four MTAs were identified for leaf area index, 13 for canopy temperature, one for chlorophyll content ...

Characterization of gonadotropin releasing hormone receptor gene in Sokoto and Kalahari Red goats

Animal Reproduction Science

Linear Body Measurements and Slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Linear Body Measurements and Slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Journal of Animal Science Advances, 2013

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Seminal Plasma Proteome as an Indicator of Sperm Dysfunction and Low Sperm Motility

Molecular & Cellular Proteomics

Molecular mechanisms underlying sperm motility have not been fully explained, particularly in chi... more Molecular mechanisms underlying sperm motility have not been fully explained, particularly in chickens. The objective was to identify seminal plasma proteins associated with chicken sperm motility by comparing the seminal plasma proteomic profile of roosters with low sperm motility (LSM, n = 4) and high sperm motility (HSM, n = 4). Using a label-free MS-based method, a total of 522 seminal plasma proteins were identified, including 386 (~74%) previously reported and 136 novel ones. A total of 70 differentially abundant proteins were defined, including 48 more-abundant, 15 less-abundant, and seven proteins unique to the LSM group (specific proteins). Key secretory proteins like less-abundant ADGRG2 and more-abundant SPINK2 in the LSM suggested that the corresponding secretory tissues played a crucial role in maintaining sperm motility. Majority (80%) of the more-abundant and five specific proteins were annotated to the cytoplasmic domain which might be a result of higher plasma membr...

Carcass Characteristics and Meat Attributes of Pigeon (Columbia Livia) as Influenced by Strain and Sex

Linear Body Measurements and Slaughter

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Linear Body Measurements and slaughter Characteristics of Meat Goats in the Semi-Arid Zone of North-Western Nigeria

Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel... more Thirty two intact male goats representing eight replicates of two breeds (Sokoto Red Versus Sahel) and two ages (Young Versus Mature) were investigated for linear body measurements and conformational traits. All linear body measurements had higher values (P<0.05) in the Sahel except for chest measurements of girth, width and depth, which did not differ significantly between breeds. Mature goats had significantly higher values in all linear measurements than young goats. All carcass measurements were also higher (P<0.05) in Sahel and mature goats except carcass width which did not differ between breeds. All conformational traits; slaughter weight, Body mass index (BMI) empty body weight and carcass weight were higher (P<0.05) in mature goats. Sahel goats also had significantly higher values of conformational traits except for BMI where the Sokoto Red was superior (46.20 versus 41.45). It was observed that age had a greater influence on the traits investigated than breed.

Carcass Composition and Meat attributes of Pigeon ( Columba livia) as influenced by Strain and Sex

The consumption of pigeon meat if encouraged can be employed as a tool to alleviate poverty and e... more The consumption of pigeon meat if encouraged can be employed as a tool to alleviate poverty and ensure food security for economically disadvantaged peasant farmers. Pigeon meat is rarely consumed in most part of Nigeria. An experiment was carried out to evaluate carcass and meat quality of three strains of pigeon commonly found in the semi-arid region of Nigeria. A total of seventy-two matured pigeon with twenty-four from each strain were used for the study in a 3x2 (breed x sex) factorial arrangement in a completely randomized design. The strains evaluated are, Algardi, Jamul and Kura. The birds were slaughtered in batches of six, properly bled, defeathered at 85 o C and dressed. The carcasses were chilled at 2 o C for 24 h prior to cutting up into primal cuts. Samples for cooking loss, water holding capacity and shear force were taken from the breast portion.