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Phenotypic Characterization of Indigenous Pigs Populations of Nigeria
Subject area: Science,Engineering and Technology · Area of research: Animal Breeding and Physiology
Abstract
Indigenous pig production plays a vital role in Nigeria's rural farming systems, providing livelihood and food security. However, the population has recently stagnated, primarily due to the lack of comprehensive improvement and conservation programs. To address this, a study was conducted to characterize the morphometric traits of indigenous pigs across three ecological zones: humid forest, guinea savannah, and derived savannah. A total of 450 pigs (150 from each zone) were purposively sampled, and their morphometric measurements such as body weight, body length, heart girth, wither height, paunch girth, and ear length were recorded using measuring tapes. Results indicated that the highest body weight (23.60 ? 0.62 kg) and linear measurements body length (70.31 ? 0.76 cm), wither height (64.87 ? 0.64 cm), heart girth (59.31 ? 0.46 cm), and ear length (17.35 ? 0.20 cm) were observed in pigs from specific ecotypes. Sex significantly influenced all measured traits (P < 0.05), with males exhibiting higher values across traits. Age also had a notable effect, with four-year-old pigs displaying the highest body weights and linear measurements, demonstrating a positive correlation between age and growth parameters. Phenotypic correlation analysis revealed strong, positive, and significant relationships among traits within ecotypes, with correlation coefficients ranging from 0.739 to 0.797. These findings facilitated the classification of animals into their respective ecotypes. The study suggests that these morphometric data can serve as baseline information for future genetic studies and conservation strategies, aimed at improving and maintaining the genetic integrity of Nigeria?s indigenous pig breeds.
Keywords
Morphometric Traits, Pig, Sex, Age, Location
References
[1] Adeola, A.C., Saidu, O., Oseni, S.O. and Omitogun, O.G .(2013). Morphological characterization of indigenous and crossbred pigs in rural and periurban areas of southwestern Nigeria. Open Journal of Animal Sciences, 3(3):230-235.
[2] Adjei, O., Osei-Amponsah, R. and Ahunu, K. (2015). Morphological characterisation of local pigs in Ghana. Bulletin of Animal Health and Production in Africa, 63(4):299-304.
[3] Food and Agriculture Organization (FAO) (2012). Phenotypic characterization of animal genetic resources. FAO Animal Production and Health Guidelines No. 11. Rome, Italy.
[4] Food and Agriculture Organization (FAO) (2015). The Second Report of the State of the World’s Animal Genetic Resources for Food and Agriculture, edited by Scherf BD and Piling D. FAO Commission on Genetic Resources for Food and Agriculture Assessments, Rome. Karnuah. 183 International Food Policy Research Institute (IFPRI) (2010). Impact of farmers field schools on Agriculture Production and Poverty, East Africa.
[5] Hamito, K. (2019). Determination of age in pigs through dentition analysis. Journal of Veterinary Science and Biotechnology, 7(4): 1-7.
[6] Handiwirawan, M., Paimin, S. and Yubiman, Y. (2018). Measurement of linear body traits in Barbados pigs. Journal of Agricultural Science, 10(3): 123-130.
[7] Javier, G. (2021). Physiological indicators of Philippine native pigs: Heart girth and body weight analysis. Livestock Research for Rural Development, 33(6): 1-8.
[8] Jimmy, J., Gaji, S. Y., Abdu, M. K. and Adamu, R. B. (2010). Phenotypic characterization of pig breeds in Nigeria. Journal of Agricultural Science, 3(2): 1-10.
[9] Johnson, R. A. and Wichern, D. W. (2022). Applied Multivariate Statistical Analysis.Pearson. p 6.
[10] Jones, A. S., Chen, C. H., Huang, H. L., Yang., H. Y, Lai, S. R., Yen, M. C. and Huang, M. C. (2018). Phenotypic and Mitochondial Genome of Taiwan Pig (Sus scrofa). African Journal Biotechnology, 10:2556-2561.
[11] Karnuah, A.B., Dunga, G., Wennah, A., Wiles, W.T., Greaves, E., Varkpheh, R., Osei-Amponsah, R. and Boettcher, P. (2018). Phenotypic characterization of beef cattle breeds and production practices in Liberia. Tropical Animal Health and Production., 2018: 1-8
[12] Kosgen, L. (2014). The relationship between morphometric divergence and geographical separation in farm animals. Journal of Animal Breeding and Genetics, 131(2): 123-131.
[13] Kurosawa, T., Nishimura, H. and Tamiya, T. (2018). Teat number variations and their implications on pig breeding. Animal Science Journal, 89(4): 568-576.
[14] Layos, J. A., Riaño, C. and Verdu, J. (2018). Growth patterns of domestic pigs: Age-related changes in morphometric characteristics. Journal of Animal Science and Biotechnology, 9(1): 1-11.
[15] Lee, M. Y., Jang, J. Y. and Kwon, H. J. (2022). Integrating molecular genetics and morphological studies: Implications for animal breeding programs. Genetics Selection
[16] Mansjoer, K. L, Sujior, A. R. and Dioer, M. Y. (2017). Animal Genetic Resources. Strategies for Improved use and conservation. Animal Production and health, 66:336.
[17] Marai, I. F. M., El-Din, A. A. and Fadly, H. M. (2016). Influence of sex and age on body weight of local pigs in Egypt. International Journal of Animal Genetics, 20(3): 235-242.
[18] Mbuthia, J.M., Rewe, T.O. and Kahi, A.K. (2015). Evaluation of pig production practices, constraints and opportunities for improvement in smallholder production systems in Kenya. Tropical Animal Health and Production, 47:369-376.
[19] Miller, J. E. and Patel, S. J. (2020). Applying morphometric analyses to optimize livestock conservation and breeding strategies. Animal Conservation, 23(6): 575-588.
[20] Okpeku, M., Olawumi, O. A. and Okpeku, J. A. (2011). Morphological traits of West African goats: A study of genetic variation. Proceedings of the Nigerian Society for Animal Production, 36: 132-136.
[21] Osei-Amponsah, R., Skinner, B.M., Adjei, O.D., Bauer, J., Larson, G., Affara, N.A. and Sargent, C.A. (2017). Origin and phylogenetic status of the local Ashanti Dwarf pig (ADP) of Ghana based on genetic analysis. BMC Genomics 18:193.
[22] Proudman, J., Smith, S. B., Wiegand, B. R. and Wilson, D. E. (2019). The influence of sex and age on body linear measurements of pigs in the United States. Journal of Animal Science, 33(1): 77-85.
[23] Smith, J., Brown, A. and Taylor, K. (2023). Classification of indigenous and exotic pig breeds using discriminant analysis. Journal of Animal Breeding and Genetics, 140(2): 123-135.
[24] United States Department of Agriculture (USDA) (2016). World Meat Consumption Patterns. EMI Analytics, USDA Foreign Agricultural Service, CIA World Factbook.
[25] Yaetsu, F., Excoffier, L., Smouse, P. E. and Quattro, J. T. (2017). Analysis of Molecular Variance Inferred from Metric Distances among DNA Haplotypes: Application to Human Mitochondrial DNA Restriction Data. Genetics, 131:479-491.
How to cite this paper
@article{1709680,
author = {Ubu, I., Ukwu, O. H., Gambo, D.},
title = {Phenotypic Characterization of Indigenous Pigs Populations of Nigeria},
journal = {Iconic Research And Engineering Journals},
year = {2025},
volume = {9},
number = {1},
pages = {856-865},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1709680.pdf},
abstract = {Indigenous pig production plays a vital role in Nigeria's rural farming systems, providing livelihood and food security. However, the population has recently stagnated, primarily due to the lack of comprehensive improvement and conservation programs. To address this, a study was conducted to characterize the morphometric traits of indigenous pigs across three ecological zones: humid forest, guinea savannah, and derived savannah. A total of 450 pigs (150 from each zone) were purposively sampled, and their morphometric measurements such as body weight, body length, heart girth, wither height, paunch girth, and ear length were recorded using measuring tapes. Results indicated that the highest body weight (23.60 ? 0.62 kg) and linear measurements body length (70.31 ? 0.76 cm), wither height (64.87 ? 0.64 cm), heart girth (59.31 ? 0.46 cm), and ear length (17.35 ? 0.20 cm) were observed in pigs from specific ecotypes. Sex significantly influenced all measured traits (P < 0.05), with males exhibiting higher values across traits. Age also had a notable effect, with four-year-old pigs displaying the highest body weights and linear measurements, demonstrating a positive correlation between age and growth parameters. Phenotypic correlation analysis revealed strong, positive, and significant relationships among traits within ecotypes, with correlation coefficients ranging from 0.739 to 0.797. These findings facilitated the classification of animals into their respective ecotypes. The study suggests that these morphometric data can serve as baseline information for future genetic studies and conservation strategies, aimed at improving and maintaining the genetic integrity of Nigeria?s indigenous pig breeds.},
keywords = {Morphometric Traits, Pig, Sex, Age, Location},
month = {July},
}