Genetic morphometry in Nigerian and South African Kalahari Red goat breeds
Author:
Sanni Muyideen Timothy1, Okpeku Moses23, Onasanya Gbolabo Olaitan4, Adeleke Matthew Adekunle5, Wheto Mathew1, Adenaike Adeyemi Sunday1, Oluwatosin Bamidele Omonuwa67, Adebambo Oluwafunmilayo Ayoka1, Ikeobi Christian Obiora Ndubuisi1
Affiliation:
1. Department of Animal Breeding and Genetics , Federal University of Agriculture , Abeokuta , Nigeria 2. Animal Breeding and Genetics Group, Department of Animal Science , University of Swaziland , Swaziland 3. State Key Laboratory for Genetic Resources and Evolution , Chinese Academy of Sciences, Kunming Institute of Zoology , China 4. Department of Animal Science , Federal University , Dutse , Nigeria 5. Disciple of Genetics, School of Life Sciences , University of KwaZulu-Natal , South Africa 6. Department of Animal Production and Health , Federal University of Agriculture , Abeokuta , Nigeria 7. Institute of Food Security, Environmental Resources and Agricultural Research , Abeokuta , Nigeria
Abstract
Abstract
Genetic improvement of goat breeds in growth and other traits (e.g. milk production) is limited by the demographics of the goat herds, extensive production system and the seemingly long-term nature of improvement through traditional genetics and breeding methods. We studied the genetic morphometry in Nigerian goats and South African Kalahari Red goat breeds. A total of 192 goats belonging to three Nigerian breeds (Red Sokoto (RS), Sahel (SH) and West African Dwarf (WAD)) and one South African Kalahari Red (KR) goat breed were analysed. Animals were classified into four age groups: A group – less than 1 year, B group – between 1 and 2 years, C group – between 2 and 3 years and C group – older than 3 years based on dentition. Analysis of variance, correlation matrix, regression and discriminant analyses were used to evaluate morphological variability. Results revealed that the effect of breed on the measured morphometric traits was significant (P < 0.05). The best prediction equation for body weight (BW) with R2 = 0.84 was obtained when body length (BL), withers height (WH) and chest depth (CD) were included in the model for KR goat. Growth traits were positively correlated with each other with the highest correlation coefficients found between BL and BW (r = 0.877, P < 0.01), WH and BW (r = 0.541, P < 0.01), WH and BW (0.661, P < 0.01) and CD and BW (0.738, P < 0.01) in KR, RS, SH and WAD goats, respectively, which are important for a conscious selection and breeding programme for desired traits. Stepwise discriminant procedure showed that WH, CD and BL were the most discriminating variables to separate KR, RS, SH and WAD goats. In accessing morphological diversity, efforts should be made to include phenotypic variables of at least ≥ 3 in order to minimize ambiguity in classification. Based on the pair-wise distances from the Discriminant function, the study provided informed decision, reference information on goat breeding and conservation strategy.
Publisher
Walter de Gruyter GmbH
Reference28 articles.
1. Agaviezor B. O., Peters S. O., Adefenwa M. A., Yakubu A., Adebambo O. A., Ozoje M. O., Ikeobi C. O. N., Wheto M. Ajayi, O. O., Amusan S. A., Ekundayo J. O., Sanni M. T., Okpeku M., Onasanya G. O., De Donato M., Ilori B. M., Kizikaya K., Imumorin I. G. (2012): Morphological and microsatellite DNA diversity of Nigerian indigenous sheep. Journal of Animal Science and Biotechnology 3: 38. https://doi.org/10.1186/2049-1891-3-3810.1186/2049-1891-3-38 2. Ajayi O. O., Adeleke M. A., Sanni M. T., Yakubu A., Peters S. O., Ikeobi C. O. N, Ozoje M. O., Adebambo, O. A. (2012a): Application of principal component and discriminant analyses to morpho-structural indices of indigenous and exotic chickens raised under intensive management system. Tropical Animal Health and Production 44: 1247 – 1254.10.1007/s11250-011-0065-1 3. Ajayi O. O., Yakubu A, Jayeola O. O, Imumorin I. G, Adeleke M. A., Takeet M. I., Ozoje M. O., Ikeobi C. O. N., Peters S. O. (2012b): Multivariate analysis of sexual size dimorphism in domestic turkeys (Meleagris gallopavo) in Nigeria. Tropical Animal Health and Production 44: 1089 – 1095.10.1007/s11250-011-0044-6 4. Amie Marini A. B., Aslinda K., Hifzan R. M., Faisal A. B., Musaddin, K. (2012): HaeIII-RFLP Polymorphism of growth hormone gene in Savanna and Kalahari goats. Malaysian Journal of Animal Science 15: 13 – 19. 5. Bemji M. N., Awotunde E. O., Olowofeso O., Adebambo A. O. (2014): Phylogenetic Relationships among two Nigerian goat breeds and Kalahari Red goat of South Africa. In: Proceedings of the 10th World Congress of Genetics Applied to Livestock Production, Vancouver, British Columbia, Canada, August 17 – 22, 2014. Paper No. 870.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|