Rekaya R.(Yürütücü), Kırat F. N.
Diğer Uluslararası Fon Programları, 2022 - 2025
In the United States, horn flies (HF) are estimated to cause more than $1 billion in economic losses on pastured cattle annually. Although staggering, these numbers may still be an underestimation of their full impact. Relying solely on insecticides has proven to be inadequate. Improvement of cattle resistance and tolerance to HF through genetic tools was never considered despite their reasonable genetic basis. This was the result of the lack of a cost-effective and logistically easy-to-collect traits to assess HF abundance under pasture conditions, and the inability of assess the resistance and tolerance of HF at the individual level. In this proposal, we present two innovative concepts to address both problems. First, we proposed using indirect and intermediate phenotypes that are already available or could be easily collected to assess HF abundance. Sensor data and artificial intelligence tools will be used. Second, we will develop changepoint models to predict, at the individual level, the onset of economic injury threshold (EIT) and the decay in performance after onset (DPO). Jointly, HF abundance, EIT and DPO will allow the direct assessment of the individual resistance and tolerance to HF. We will dissect the genetic basis of these traits and we will assess their adequacy for genetic improvement of resistance and tolerance to HF.