The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle
Approximately 80% of the global cattle population is at risk of infestation and infection by ticks and tick-borne diseases (TTBDs). The economic losses from animal mortality, reduced production, vector control costs and animal treatment are very substantial, hence there is an urgent need to develop...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Current Research in Parasitology and Vector-Borne Diseases |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667114X2300047X |
| _version_ | 1797389348999528448 |
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| author | Collins Ngetich Lucy Kamau Jemimah Simbauni Charles Mwendia Milton Owido Irene Kiio Oswald Matika Sarah Foster Michael Birkett Appolinaire Djikeng Kellie Anne Watson Naftaly Githaka |
| author_facet | Collins Ngetich Lucy Kamau Jemimah Simbauni Charles Mwendia Milton Owido Irene Kiio Oswald Matika Sarah Foster Michael Birkett Appolinaire Djikeng Kellie Anne Watson Naftaly Githaka |
| author_sort | Collins Ngetich |
| collection | DOAJ |
| description | Approximately 80% of the global cattle population is at risk of infestation and infection by ticks and tick-borne diseases (TTBDs). The economic losses from animal mortality, reduced production, vector control costs and animal treatment are very substantial, hence there is an urgent need to develop and deploy alternative vector control strategies. Breeding for host tick resistance has the potential for sustainable large-scale TTBD control especially in cattle. The gold standard method for phenotyping tick resistance in cattle is by counting ticks on the body but is very laborious and subjective. Better methods for phenotyping tick resistance more objectively, faster and at scale, are essential for selecting host genetic resistance to ticks. This study investigated the correlation between haematological cellular profiles and immunological responses (immunoglobulin E, IgE) and full body tick counts in herds of Bos indicus and Bos taurus following artificial tick challenge with Rhipicephalus decoloratus larvae. Fifty-four Friesian and Ayrshire (Bos taurus) and 52 East African Zebu (Bos indicus) calves were each infested with ∼2500 larvae. Near-replete adult female ticks (≥ 4.5 mm) were counted daily from Day 20–25. Blood and serum samples were obtained from each animal on Days 0 and 23 for cellular blood and IgE titre analysis, respectively. The indicine cattle were refractory to R. decoloratus infestation in comparison with the taurine breed (P < 0.0001). Repeated measurements of blood components pre-infestation revealed a significant (P < 0.05) association with tick count in IgE and red blood cells, haematocrit, and haemoglobin post-infestation. There was also a strong positive correlation between the tick counts and red blood cell numbers, haemoglobin, haematocrit, and IgE concentration (P < 0.0001) following tick challenge. The application of this approach to phenotype host resistance needs to be assessed using higher cattle numbers and with different tick species or genera. |
| first_indexed | 2024-03-08T22:55:36Z |
| format | Article |
| id | doaj.art-83722574e88943119e71337b6ce32aab |
| institution | Directory Open Access Journal |
| issn | 2667-114X |
| language | English |
| last_indexed | 2024-03-08T22:55:36Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Parasitology and Vector-Borne Diseases |
| spelling | doaj.art-83722574e88943119e71337b6ce32aab2023-12-16T06:10:34ZengElsevierCurrent Research in Parasitology and Vector-Borne Diseases2667-114X2024-01-015100159The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattleCollins Ngetich0Lucy Kamau1Jemimah Simbauni2Charles Mwendia3Milton Owido4Irene Kiio5Oswald Matika6Sarah Foster7Michael Birkett8Appolinaire Djikeng9Kellie Anne Watson10Naftaly Githaka11International Livestock Research Institute (ILRI), PO Box 30709, Nairobi 00100, Kenya; Zoological Sciences and Animal Sciences Department, Kenyatta University, P.O. Box 43844, Nairobi 00100, KenyaZoological Sciences and Animal Sciences Department, Kenyatta University, P.O. Box 43844, Nairobi 00100, KenyaZoological Sciences and Animal Sciences Department, Kenyatta University, P.O. Box 43844, Nairobi 00100, KenyaBiochemistry and Molecular Biology Department, Egerton University, P.O. Box 536-20115, Egerton, KenyaInternational Livestock Research Institute (ILRI), PO Box 30709, Nairobi 00100, KenyaInternational Livestock Research Institute (ILRI), PO Box 30709, Nairobi 00100, KenyaThe Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush Campus, EH25 9RG, UK; Centre for Tropical Livestock Genetics and Health (CTLGH), Roslin Institute, University of Edinburgh, Easter Bush Campus, EH25 9RG, UKProtecting Crops and the Environment, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UKProtecting Crops and the Environment, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UKInternational Livestock Research Institute (ILRI), PO Box 30709, Nairobi 00100, Kenya; Centre for Tropical Livestock Genetics and Health (CTLGH), Roslin Institute, University of Edinburgh, Easter Bush Campus, EH25 9RG, UKThe Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush Campus, EH25 9RG, UK; Centre for Tropical Livestock Genetics and Health (CTLGH), Roslin Institute, University of Edinburgh, Easter Bush Campus, EH25 9RG, UKInternational Livestock Research Institute (ILRI), PO Box 30709, Nairobi 00100, Kenya; Corresponding author.Approximately 80% of the global cattle population is at risk of infestation and infection by ticks and tick-borne diseases (TTBDs). The economic losses from animal mortality, reduced production, vector control costs and animal treatment are very substantial, hence there is an urgent need to develop and deploy alternative vector control strategies. Breeding for host tick resistance has the potential for sustainable large-scale TTBD control especially in cattle. The gold standard method for phenotyping tick resistance in cattle is by counting ticks on the body but is very laborious and subjective. Better methods for phenotyping tick resistance more objectively, faster and at scale, are essential for selecting host genetic resistance to ticks. This study investigated the correlation between haematological cellular profiles and immunological responses (immunoglobulin E, IgE) and full body tick counts in herds of Bos indicus and Bos taurus following artificial tick challenge with Rhipicephalus decoloratus larvae. Fifty-four Friesian and Ayrshire (Bos taurus) and 52 East African Zebu (Bos indicus) calves were each infested with ∼2500 larvae. Near-replete adult female ticks (≥ 4.5 mm) were counted daily from Day 20–25. Blood and serum samples were obtained from each animal on Days 0 and 23 for cellular blood and IgE titre analysis, respectively. The indicine cattle were refractory to R. decoloratus infestation in comparison with the taurine breed (P < 0.0001). Repeated measurements of blood components pre-infestation revealed a significant (P < 0.05) association with tick count in IgE and red blood cells, haematocrit, and haemoglobin post-infestation. There was also a strong positive correlation between the tick counts and red blood cell numbers, haemoglobin, haematocrit, and IgE concentration (P < 0.0001) following tick challenge. The application of this approach to phenotype host resistance needs to be assessed using higher cattle numbers and with different tick species or genera.http://www.sciencedirect.com/science/article/pii/S2667114X2300047XTicksCattleResistanceIgEPhenotype |
| spellingShingle | Collins Ngetich Lucy Kamau Jemimah Simbauni Charles Mwendia Milton Owido Irene Kiio Oswald Matika Sarah Foster Michael Birkett Appolinaire Djikeng Kellie Anne Watson Naftaly Githaka The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle Current Research in Parasitology and Vector-Borne Diseases Ticks Cattle Resistance IgE Phenotype |
| title | The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle |
| title_full | The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle |
| title_fullStr | The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle |
| title_full_unstemmed | The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle |
| title_short | The potential for use of haematological and anti-IgE humoral responses as phenotypic markers for tick resistance in cattle |
| title_sort | potential for use of haematological and anti ige humoral responses as phenotypic markers for tick resistance in cattle |
| topic | Ticks Cattle Resistance IgE Phenotype |
| url | http://www.sciencedirect.com/science/article/pii/S2667114X2300047X |
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