(10,1528) = 5.11, P Table 5 Overall tick burden and tick burden by categories of the temperature-humidity index (means ± standard errors) in four Colombian cattle breeds
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There can be a scant amount of investigation about books into the tick load in cows to have warm nations about Americas. Really knowledge on this matter had been done in subtropical countries such as Southern Africa [8, 15], places which have significant highest heat instance Egypt and Pakistan , and many warm places such Tanzania and you may Nigeria . Tick load often is reported using transformed study, that renders result investigations to own genuine tick burden tough to understand. This study shows the actual tick load as well as experience of temperatures be concerned indicator when you look at the five Bos taurus types located in around three different geographic areas of Colombia (the newest Caribbean, Andean and you can Orinoquia countries). Tick load throughout these Colombian cows breeds is actually lower than you to definitely utilized in a research playing with steers grazing from the Meta institution (Orinoquia region). Concurrently, the typical tick burden based in the four Colombian breeds during the our experiment (17.cuatro ± 24.6) is lower than just you to found in other tropical places including new B. indicus Meru crossbred for the Tanzania (37.5 ± eleven.8) and lots of B. indicus cattle populations (White Fulani and you may Bunaji breeds in addition to their crossbreds) inside the Nigeria (22 ± step one.4) . Different cattle breeds, lawn varieties, grazing administration, herding system, weather and you SatД±lД±k Rusya eЕџleri can environment areas of presses you will explain the high tick load utilized in such most other training.
Tick shipment with the cows bodies
This new tick weight to your rump and you will tail out-of SM (seven.2 ± twelve.2), ROMO (5.8 ± 10.2) and you will CCC (nine.4 ± fifteen.1) cows is greater than brand new tick weight located on the buttocks foot, stomach and you can flanks (step 1.0 ± 2.4, cuatro.six ± 6.nine and 7.2 ± 11.step 1, respectively). These types of performance agree with those people acquired from the within the Nguni cattle. These types of people discovered that this new tick weight on the tail and you may perineum was more than new tick weight toward stomach on the season. A low tick burden into the BON, ROMO and you will CCC cattle try noticed for the direct and shoulder followed by the trunk and you may loin. Similarly, Asmaa mais aussi al. learned that a minimal number of presses had been noticed inside the vision, shoulder and you can breasts. Clicks favor hidden and you will warm anatomical zones towards creature human anatomy . And therefore, the ideal ecosystem to have tick survival is actually in tail and perineum, maybe discussing the newest high number from ticks seen throughout these body zones. Additionally, the back feet, udder, stomach, fore and you will bottom flank become more confronted with lawn, which without difficulty attained because of the ticks. This can be exactly why we observed a high proportion of full tick burden throughout these human anatomy zones.
Different varieties of grass and you may paddocks where this type of pet supply you will cause variations in tick weight from the anatomical areas. This is certainly substantiated by the similar percentage of tick load because of the anatomical areas seen with the ROMO and you will CCC types, which were located at the same fresh channel and you may was given with the same types of grass. Alternatively, the new tick burden by the anatomical area is extremely additional in BON and you can SM breeds, that is to some extent said by another environment.
Sex, ages and you may real time pounds
The greater tick burden noticed in females will follow the outcomes away from Rehman et al. in the Pakistani cows, where female had a somewhat large tick burden than just males. While doing so, there is certainly a higher incidence from tick infestation in women (58.7%) than in men (41.5%) from inside the Egyptian cattle . At exactly the same time, zero tall distinctions were discover into infestation prevalence away from R. microplus between people from inside the Indian cows and you may North american country cows . From the fresh channels in which the cattle for the analysis had been leftover, bulls received preferential management because they got resting periods till the start of the second breeding season, and you will have been designated inside paddocks which have a lower stocking rates. On the other hand, cows were usually leftover at the high equipping costs. These particular criteria gotten by the bulls throughout some months of one’s seasons might define the reason we receive a reduced tick weight inside males versus people in our investigation.