PHENOTYPIC VARIATION OF SOME QUALITATIVE TRAITS IN WEST AFRICAN DWARF GOATS

Authors

  • Fajemilehin S.O.K. Department of Animal Science,Faculty of Agricultural Sciences, Ekiti State University, Ado-Ekiti, Nigeria https://orcid.org/0000-0002-6789-3566
  • M.K. Adegun Department of Animal Science,Faculty of Agricultural Sciences, Ekiti State University, Ado-Ekiti, Nigeria

DOI:

https://doi.org/10.29121/granthaalayah.v8.i5.2020.83

Keywords:

Beard, Colour Pigmentation, Horned, Phenotypic Variation, Wattle, West African Dwarf Goats

Abstract

Each class of livestock has some peculiar qualitative traits and in goats some of these are coat pigmentation, horned/polled, beard/non-beard, wattled/non-wattled. Since the impact of environment is important in phenotypic expression of qualitative traits, it becomes expedient to examine these features in West African Dwarf Goats (WADG) from every climatic region of the world. To accomplish this, a total of 623 WADGs aged between 3 and 4 years reared extensively in Ekiti state region of Nigeria were purposively selected from the three agricultural zones in the state for the examination. Data were collected on coat pigmentation, horns, wattle and beard on sex basis. The commonest pigmentation was black at 31.29%, 35.43% and 34.18% in the three zones and the least encountered was mixed pigmentation at 11.66%, 07.62% and 08.44% respectively. The number without wattles (57%) outnumbered those with wattles (43%). 88% had no beards and 87% were horned. 30% of does had wattles and 59% were horned as against 13% and 29%, respectively in bucks. In all, 2% of doe and 9% of buck had beards. The levels of variation in the traits surveyed in the three Districts indicated that WADGs in the region are predominantly black, not wattled, not bearded and horned.



Downloads

Download data is not yet available.

References

Edilberto, C; Fernando, M.; Francisco, V.; Samuel, RP.; Eliecer, P. and Concepta, M. (2011). Morphological measurements and body indices for cuban creole goats and their crossbreds. R. Bras. Zootec. 40: 8. Http://dx.doi.org /10 1590/ s1516-35982011000800007

Dereje Tsegaye, Berhanu Belay and Aynalem Haile (2013). Morphological Characterization of Indigenous Hararghe Highland Goat Breed in Their Native Environment, West Hararghe, Ethiopia. American-Eurasian Journal of Scientific Research 8 (2): 72-79.

Oseni, SO. and BA. Ajayi (2014). Phenotypic Characterization and Strategies for Genetic Improvement of WAD Goats under Backyard Systems. Open Journal of Animal Sciences. Vol.04 No.05, Article ID:50125, 9 pages DOI: https://doi.org/10.4236/ojas.2014.45032

Reber, I. ; Keller, I.; Becker, D.; Flury, C.; Welle, M. and Drögemüller C. (2015). Wattles in goats are associated with the FMN1/GREM1 region on chromosome 10. Anim Genet.46(3):316- 20. doi: 10.1111/age.12279. DOI: https://doi.org/10.1111/age.12279

Adedeji, TA (2012). Effect of Some Qualitative Traits and Non-Genetic Factors on Heat Tolerance Attributes of Extensively Reared West African Dwarf (WAD) Goats. International Journal of Applied Agricultural and Apicultural Research. 8 (1): 68-81

Stultz (2015). http/www.dairy journal.com. Accessed on July, 2019.

Gerald, W (1994). The Tropical Agriculturalist Macmillan Press Ltd. London, pp. 54-57.

Kolo, PS.; SSA. Egena; DN Tsado and M. Adisa-Shehu (2015). Phenotypic and genetic categorization of qualitative traits in extensively managed local goat (Capra aegagrus) population of Niger State, Nigeria. Nigerian Journal of Genetics. 1-6. Available online at www.sciencedirect.com

Rosner, B. (1995). Fundamentals of Biostatistics, 4th ed., Wadsworth Publishing Co., Belmont, California.

Adedeji, TA., LO. Ojedapo, OS. Adedeji, TA. Aderogba and AR. Abdullah. (2006) Characteristics of traditionally reared West African Dwarf Goats (WAD) in the Derived Savannah Zone of Nigeria. Journal of Animal and Veterinary Advances. 5 (8): 686-688.

Jimbow, K; Quevedo WC, Jr; Fitzpatrick, TB; Szabo, G (1976). "Some aspects of melanin biology: 1950–1975". The Journal of Investigative Dermatology. 67 (1): 72–89. DOI: https://doi.org/10.1111/1523-1747.ep12512500

Meredith P and Riesz J (2004). "Radiative relaxation quantum yields for synthetic eumelanin". Photochemistry and Photobiology. 79 (2): 211–6. DOI: https://doi.org/10.1562/0031-8655(2004)079<0211:RCRQYF>2.0.CO;2

Baton R, Louisiana SV and Roussel JD (2004). Heat Stress. In: National Goat Hand book. National Agriculture Database Laboratory. http. // outlands. tripod. com/ farm / national- goat- handbook.

Odubote, IK. (1994). Characterization of the West African Dwarf Goats for certain qualitative traits. Nigerian Journal of Animal Production. 21:37-41.

Downloads

Published

2020-05-28

How to Cite

S.O.K., F., & M.K., A. (2020). PHENOTYPIC VARIATION OF SOME QUALITATIVE TRAITS IN WEST AFRICAN DWARF GOATS. International Journal of Research -GRANTHAALAYAH, 8(5), 94–99. https://doi.org/10.29121/granthaalayah.v8.i5.2020.83