(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
Dialogue
You will find a light level of research on the literature into the tick load when you look at the cattle to possess warm regions regarding the Americas. Really knowledge about this issue were done in subtropical countries including Southern area Africa [8, 15], countries that have tall higher temperature eg Egypt and you can Pakistan , and some exotic nations such Tanzania and Nigeria . Tick weight is sometimes stated having fun with transformed investigation, that renders effects testing for actual tick burden hard to understand. This research suggests the actual tick weight as well as connection with temperature stress indicator in the five Bos taurus types based in about three different geographic aspects of Colombia (the latest Caribbean, Andean and Orinoquia countries). Tick weight in these Colombian cattle types try below one included in an experiment playing with steers grazing regarding the Meta agency (Orinoquia region). As well, the average tick load found in the four Colombian types in the our very own check out (17.4 ± 24.6) is gloomier than just you to definitely seen in other warm countries including the brand new B. indicus Meru crossbred into the Tanzania (37.5 ± eleven.8) and several B. indicus cattle populations (Light Fulani and you will Bunaji types in addition to their crossbreds) inside Nigeria (twenty-two ± step one.4) . Various cows breeds, yard species, grazing management, herding program, weather conditions and ecological regions of presses you’ll explain the highest tick load included in such most other studies.
Tick shipments on the cows authorities
The brand new tick load on rump and you may tail out of SM (7.2 ± 12.2), ROMO (5.8 ± ten.2) and CCC (nine.4 ± 15.1) cattle is more than the fresh tick burden located on the bottom base, belly and flanks (1.0 ± dos.4, cuatro.6 ± six.nine and you will eight.dos ± 11.1, respectively). ()This type of overall performance trust the individuals obtained by the inside the Nguni cattle. These types of writers discovered that the latest tick burden towards the end and you may perineum was more than the latest tick weight into the belly throughout the year. A minimal tick load inside the BON, ROMO and CCC cattle is actually observed to your head and you may shoulder followed closely by the trunk and you may loin. Furthermore, Asmaa mais aussi al. found that a reduced level of ticks was in fact noticed within the attention, shoulder and tits. Ticks favor undetectable and you will enjoying anatomical areas towards creature body . And therefore, an appropriate environment to have tick survival is under the end and you may perineum, possibly discussing the newest large number out of ticks seen during these system zones. At the same time, the back legs, udder, belly, fore and butt flank be a little more confronted by turf, which effortlessly achieved because of the clicks. This will be precisely why we observed a high ratio of your own total tick burden throughout these human body zones.
Different kinds of turf and paddocks where this type of animals provide you will cause variations in tick weight from the anatomical zones. This really is corroborated by similar part of tick load because of the anatomical areas observed toward ROMO and you will CCC types, which were located at an equivalent fresh station and had been given with the exact same types of yard. In contrast, the brand new tick load by anatomical area is very more when you look at the BON and SM breeds, which will be in part said of the a different sort of environment.
Sex, decades and you can alive pounds
The higher tick burden observed in females will follow the outcome of Rehman mais aussi al. within the Pakistani cattle, where ladies got a somewhat high tick burden than just men. While doing so, you will find increased incidence of tick infestation in females (58.7%) compared to guys (41.5%) within the Egyptian cattle . As well, zero tall differences was discover on infestation incidence of Roentgen. microplus anywhere between women and https://kissbrides.com/tr/blog/posta-siparis-gelin-hikayeleri/ men in Indian cows and Mexican cows . Regarding experimental programs where in actuality the cows in regards to our research was in fact left, bulls gotten preferential administration because they had asleep symptoms before the start of second breeding year, and was indeed assigned in the paddocks which have a lower life expectancy stocking rate. However, cattle have been always leftover in the high equipping costs. These particular requirements obtained from the bulls through the certain weeks of seasons you will determine the reason we discovered a lower life expectancy tick burden for the guys compared to the lady in our studies.