Sexual dimorphism in morphometric and carcass traits in a pig population at different ages: implications for efficient pig production system
DOI:
https://doi.org/10.4025/actascianimsci.v48.i1.75777Palavras-chave:
body measurement, commercial pigs, ham weight, gender differences, body weight.Resumo
This study was designed to examine sexual dimorphism for economic traits in pigs. A total of 80 grower pigs averaging 4 weeks of age were randomly allotted into 2 groups with 4 replicates, each comprising of 10 pigs, in a Completely Randomized Design. Data were collected from the 6th to 18th week of age. Body weight gain (BWG) and feed intakes (FI) were measured. Morphometric and carcass characteristics measured includes: Body Length (BL), Ham Length (HL), Ear Length (EL), Shank Length (SL) Ham Weight (HW), Head weight (Hw), Neck weight (NW), liver weight (LW), heart weight (Hw) and Offals weight (OW). Male animals displayed significantly higher (p<0.05) body weight (19.75±0.65 compared to 16.39±0.52), final body measurements of body length (86.50±1.10 and 81.03±1.10) and body girth (72.50±0.87 and 70.45±2.11), and a feed conversion ratio of 6.70±0.26 compared to 7.78±0.45, except for weeks 8 and 10 of the study. The ham length was significantly different (p<0.05) at 6 (20.15 vs 18.85), 8 (22.17 vs 21.17), 14 (25.80 vs 24.30), 16 (26.20 vs 22.28), and 18 weeks (25.89 vs 24.65) for males versus females, respectively. A similar trend was observed for shank length, tail length, neck weight, and offal weight. This study concludes that sexual dimorphism exist for the traits measured with males having better body weight gain, carcass traits, and other morphometric traits in commercial pig population. This could possibly guide consumers and pig producers in selection of pigs for important economic traits in pigs with reference to gender.
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Berri, C., Picard, B., Lebret, B., Andueza, D., Lefèvre, F., Le Bihan-Duval, E., Beauclercq, S., Chartrin, P., Vautier, A., & Legrand, I. (2019). Predicting the quality of meat: myth or reality? Foods, 8(10), 436. https://doi.org/10.3390/foods8100436
Camerlink, I., Farish, M., Arnott, G., & Turner, S. P. (2020). Sexual dimorphism in ritualized agonistic behaviour, fghting ability and contest costs of Sus scrofa. Frontiers in Zoology, 19(13), 2-11. https://doi.org/10.1186/s12983-022-00458-9
Cassini, M. H. (2020). A mixed model of the evolution of polygyny and sexual size dimorphism in mammals. Mammal Review, 50(1), 112- 120. https://doi.org/10.1111/mam.12171
Christoforidou, Z., Mora, O. M., Poveda, C., Abbas, M., Walton, G., Bailey, M., & Lewis, M. C. (2019). Sexual dimorphism in immune development and in response to nutritional intervention in neonatal piglets. Frontiers in Immunology, 10(1), 2705. https://doi:10.3389/fimmu.2019.02705
Heide, E. V. D, Lourenco, D. A. L., Chen, C. Y., Herring, W. O., Sapp, R., Moser, D. W., Tsuruta, S., Masuda, Y., Ducro, B. J., & Misztal, I. (2016). Sexual dimorphism in livestock species selected for economically important traits. Journal of Animal Science, 94(9), 3684-3692. https://doi:10.2527/jas2016-0393
Latorre, M., Lázaro, R., Gracia, M., Nieto, M., & Mateos, G. (2003). Effect of sex and terminal sire genotype on performance, carcass characteristics, and meat quality of pigs slaughtered at 117 kg body weight. Meat Science, 65(4), 1369-1377. https://doi:10.1016/S0309-1740(03)00059-7
Malgwi, I. H., Giannuzzi, D., Gallo, L., Halas, V., Carnier, P., & Schiavon, S. (2022). Influence of slaughter weight and sex on growth performance, carcass characteristics and ham traits of heavy pigs fed ad-libitum. Animals, 12(2), 215. https://doi.org/10.3390/ani12020215
Muroya, S., Ueda, S., Komatsu, T., Miyakawa, T., & Ertbjerg, P. (2020). MEATabolomics: muscle and meat metabolomics in domestic animals. Metabolites, 10(5), 188. https://doi.org/10.3390/metabo10050188
Pas, M. F. W. T., Lebret, B., & Oksbjerg, N. (2017). Invited review: measurable biomarkers linked to meat quality from different pig production systems. Archives in Animal Breeding, 60(3), 271-283. https://doi.org/10.5194/aab-60-271-2017
Peukert, M., Zimmermann, S., Egert, B., Weinert, C. H., Schwarzmann, T., Brüggemann, D.A. (2021). Sexual dimorphism of metabolite profiles in pigs depends on the genetic background. Metabolites, 11(5), 261. https://doi.org/10.3390/metabo11050261
Salamanca-Carreño, A., Jordana-Vidal, J., Crosby-Granados, R. A., Arias-Landazábal, J., & Parés-Casanova, P. M. (2020). Sexual allometric monomorphism in Araucan pig from Colombia: preliminary results. Animals, 10(10), 1763. https://doi.org/10.3390/ani10101763
Siewe, A. T., Manjeli, Y., & Meutchieye, F. (2021). The Bankim Pigs: A native Cameroonian breed assessed by biometric features. Genetics and Biodiversity Journal, 5(1), 101-111.
Sorhue, U. G., Akporhuarho, P. O., Moemeka, A. M., Samson, A., Udeh, I., & Omeje, I. S. (2023). Allelic diversity of growth hormone gene in a commercial pig population using single nucleotide polymorphism. Porcine Research, 13(1), 7-12.
Strawn, M., Moraes, J. G. N., Safranski, T. J., & Behura, S. K. (2021). Sexually dimorphic transcriptomic changes of developing fetal brain reveal signaling pathways and marker genes of brain cells in domestic pigs. Cells, 10(9), 2439. https://doi.org/10.3390/cells10092439
Susol, R., Garmatynk, K., & Tatsly, O. (2021). The phenomenon of sexual dimorphism in the context of rearing pigs in modern commercial breeds under conditions of the South Ukraine. Scientific Papers. Series D. Animal Science, 75(1), 307-312.
Wittenburg, D., Teuscher, F., & Reinsch, N. (2011). Statistical tools to detect genetic variation for a sex dimorphism in piglet birth weight. Journal of Animal Science, 89(3), 622-629. https://doi:10.2527/jas.2009-2692
Yakubu, A. (2014). Discriminant analysis of sexual dimorphism in morphological traits of African Muscovy ducks. Archivos de Zootecnia, 60(232), 1115-1123. https://dx.doi.org/10.4321/S0004-05922011000400027
Yakubu, A., Durven, G. L., & Hagan, J. (2022). Multivariate analysis of body weight, morphometric and thermo-physiological traits of indigenous pigs under tropical conditions. Genetics and Biodiversity Journal, 6(1), 91-104. https://doi:10.46325/gabj.v6i1.202
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Copyright (c) 2026 Ufuoma Godstime Sorhue, Philip Okpako Akporhuarho, Jerome Unukevwere, Stella Onyinye Onwumere-idolor , Mike Adimabua Moemeka, Ijeoma Arhere
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