(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 scant amount of studies from the literary works with the tick weight into the cattle to possess exotic regions throughout the Americas. Very studies on this subject matter was done in subtropical places including Southern Africa [8, 15], nations which have significant highest temperature such as for example Egypt and you may Pakistan , and many exotic nations for example Tanzania and Nigeria . Tick burden might be advertised using transformed research, that renders results investigations for actual tick burden tough to translate. This research shows the genuine tick load and its connection with temperature stress indicator inside four Bos taurus breeds located in about three other geographic aspects of Colombia (the fresh Caribbean, Andean and you may Orinoquia regions). Tick burden on these Colombian cows breeds is actually lower than one utilized in a test using steers grazing throughout the Meta agencies (Orinoquia region). On the other hand, the average tick load found in the five Colombian types within the our very own try (17.cuatro ± 24.6) is gloomier than just that observed in other warm countries like the newest B. indicus Meru crossbred from inside the Tanzania (37.5 ± eleven.8) and some B. indicus cattle populations (Light Fulani and you may Bunaji breeds and their crossbreds) for the Nigeria (twenty two ± 1.4) . Different cattle breeds, grass species, grazing government, herding program, climate conditions and environment aspects of presses might give an explanation for high tick burden included in such other training.
Tick distribution towards cows bodies
This new tick load towards the rump and end from SM (eight.dos ± twelve.2), ROMO (5.8 ± ten.2) and CCC (9.4 ± 15.1) cattle is more than brand new tick burden on the buttocks feet, belly and you may flanks (step one.0 ± dos.4, cuatro.6 ± six.nine and you can eight.dos ± eleven.1, respectively). This type of performance go along with the individuals acquired by inside the Nguni cattle. These types of article authors discovered that the fresh tick burden towards end and you may perineum is more than the tick burden to your stomach in the 12 months. A decreased tick weight inside BON, ROMO and you may CCC cattle was noticed on lead and shoulder accompanied by the back and loin. Furthermore, Asmaa mais aussi al. unearthed that a minimal amount of ticks was indeed noticed inside the attention, shoulder and you can bust. Clicks prefer undetectable and you may warm anatomical areas to your animal human anatomy . Which, an appropriate ecosystem having tick emergency try underneath the end and you will perineum, possibly detailing the fresh lot of presses noticed during these looks areas. While doing so, the back legs, udder, belly, fore and you may buttocks flank become more met with lawn, which easily hit of the presses. This will be why i noticed a high proportion of one’s total tick weight in these looks areas.
Different types of lawn and you may paddocks where these dogs supply could bring about variations in tick burden of the anatomical areas. This is exactly corroborated of the equivalent part of tick weight of the anatomical zones seen towards the ROMO and you will CCC breeds, that happen to be found at an equivalent experimental route and you will was in fact fed with the exact same style of turf. On the other hand, the newest tick weight because of the anatomical zone is very additional in the BON and you may SM types, and that’s partly told me from the another ecosystem.
Sex, decades and you may live pounds
The greater tick load noticed in lady agrees with the outcomes off Rehman et al. during the Pakistani cattle, in which female had a significantly highest tick burden than males. On the other hand, you will find a high incidence out-of tick infestation in females (58.7%) than in men (41.5%) into the Egyptian cattle . As well, no significant differences was basically discover to your infestation incidence of R. microplus anywhere between gents and ladies during the Indian cows and you may North american country cattle . About experimental programs where in actuality the cattle for the investigation had been kolombiyalД± arkadaЕџlД±k siteleri Гјcretsiz remaining, bulls received preferential management simply because they got sleep periods till the start of next breeding season, and you will was indeed allocated from inside the paddocks that have a lower equipping rate. Having said that, cows was indeed always left on higher stocking rates. That these conditions acquired by the bulls during the some months of 12 months you are going to identify why we discover a reduced tick burden inside males compared to people within our investigation.
