Original Research

The performance of Orma Boran and Maasai Zebu crossbreeds in a trypanosomosis endemic area of Nguruman, south western Kenya

M.W. Maichomo, J.M. Ndungu, P.M. Ngare, I.M. Ole-Mapenay
Onderstepoort Journal of Veterinary Research | Vol 72, No 1 | a225 | DOI: https://doi.org/10.4102/ojvr.v72i1.225 | © 2005 M.W. Maichomo, J.M. Ndungu, P.M. Ngare, I.M. Ole-Mapenay | This work is licensed under CC Attribution-NoDerivatives 4.0
Submitted: 17 September 2005 | Published: 17 September 2005

About the author(s)

M.W. Maichomo,
J.M. Ndungu,
P.M. Ngare,
I.M. Ole-Mapenay,

Full Text:

PDF (46KB)

Share this article

Bookmark and Share

Abstract

Studies on the trypanotolerance of Orma Boran X Maasai Zebu (Orma Zebu) crossbred cattle (F1 progeny) and pure-bred Maasai Zebu contemporaries were carried out in Nguruman, south western Kenya. The two groups were monitored from birth for a period of 2 years. The incidence of trypanosomosis, parasitaemia, packed cell volume (PCV), body mass and average daily mass gain were monitored. During the study period, overall trypanosomosis incidence was low (3 %). The crossbred cattle had a higher incidence of infection (61 % vs 39 %). The mean PCV and mean mass gain for the crossbred cattle was higher than that of the Maasai Zebu. The mean calf body mass at weaning (8 months) for the Orma Zebu and Maasai Zebu was 72 kg and 64 kg, respectively, while at 18 months of age their mean body mass was 164 kg and 123 kg, respectively. During the rainy season significant differences in average daily mass gains were noted (P < 0.05). The superior mass gain of the Orma Zebu observed during the rainy season, despite higher infection rates, indicate an enhanced trypanotolerance. Moreover, the better performance of the Orma Zebu is an attribute that could be exploited in the adoption of the trypanotolerance genotype, as a sustainable trypanosomosis control strategy.

Keywords

No related keywords in the metadata.

Metrics

Total abstract views: 2496
Total article views: 3903

 

Crossref Citations

1. Analysis of host genetic factors influencing African trypanosome species infection in a cohort of Tanzanian Bos indicus cattle
Esron D. Karimuribo, Liam J. Morrison, Alana Black, C. Michael R. Turner, Dominic M. Kambarage, Keith T. Ballingall
Veterinary Parasitology  vol: 179  issue: 1-3  first page: 35  year: 2011  
doi: 10.1016/j.vetpar.2011.02.001