(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
Talk
There was a light quantity of studies in the literary works on tick load within the cattle having exotic regions about Americas. Really education on this issue were done in subtropical countries such as for instance Southern Africa [8, 15], places which have tall high temperatures for example Egypt and you may Pakistan , and many exotic regions instance Tanzania and Nigeria . Tick burden is oftentimes claimed playing with turned research, that produces effect testing for genuine tick load tough to translate. This research shows the real tick load and its particular reference to temperature fret indices inside the four Bos taurus types based in three some other geographic regions of Colombia (the latest Caribbean, Andean and you can Orinoquia regions). Tick weight within these Colombian cows breeds was less than that found in a research having fun with steers grazing regarding Meta service (Orinoquia part). At the same time, the common tick load based in the five Colombian types inside the our very own test (17.cuatro ± 24.6) is leaner than simply one to noticed in almost every other exotic countries such as for example the fresh new B. indicus Meru crossbred when you look at the Tanzania (37.5 ± 11.8) and lots of B. indicus cows communities (Light Fulani and you can Bunaji types in addition to their crossbreds) during the Nigeria (twenty-two ± 1.4) . Various cows breeds, grass varieties, grazing administration, herding system, weather conditions and ecological areas of ticks you’ll explain the highest tick burden found in such most other knowledge.
Tick shipment for the cattle regulators
The fresh new tick load with the rump and tail out-of SM (eight.2 ± several.2), ROMO (5.8 ± 10.2) and you can CCC (9.cuatro ± fifteen.1) cows is actually greater than new tick burden located on the rear feet, stomach and you will flanks (step 1.0 ± 2.cuatro, cuatro.6 ± six.9 and you may 7.2 ± 11.1, respectively). These types of overall performance go along with men and women obtained from the in Nguni cattle. Such people found that the new tick burden toward tail and perineum try more than the new tick burden on the stomach about 12 months. A decreased tick burden within the BON, ROMO and CCC cattle try observed into direct and you will neck with the trunk and you may loin. Furthermore, Asmaa et al. discovered that the lowest level of ticks was basically noticed around the vision, shoulder and you can breasts. Presses like hidden and you may warm anatomical zones into the creature muscles . And this, the right ecosystem to own tick endurance try underneath the tail and you can perineum, perhaps discussing brand new lot out-of clicks observed on these system areas. On the other hand, the trunk base, udder, tummy, fore and you will bottom flank become more confronted with lawn, and therefore with ease achieved from the clicks. This is precisely why we seen a leading ratio of your complete tick burden within these muscles zones.
Different kinds of grass and you may paddocks where this type of animals supply you can expect to end in variations in tick weight by the anatomical areas. That is substantiated because of the equivalent part of tick load from the anatomical areas observed toward ROMO and you will CCC breeds, that have been located at a similar fresh station and you can had been provided with the same sort of yard. In contrast, the new tick weight because of the anatomical zone is really various other in the BON and SM breeds, and that’s partly informed me by an alternate ecosystem.
Sex, many years and you will real time weight
The greater tick load found in lady will abide by the results out-of Rehman ainsi que al. into the Pakistani cattle, where lady got a substantially highest tick weight than simply guys. As well, discover a high incidence of tick infestation in females (58.7%) compared to men (41.5%) within the Egyptian cattle . At exactly the same time, no tall variations was located with the infestation frequency out of R. microplus ranging from gents and ladies in the Indian cattle and you will North american country cows . On the fresh station where in fact the cattle for the analysis was indeed left, bulls pistäydy näiden kavereiden luona gotten preferential government since they had resting attacks up until the start of next reproduction 12 months, and were allocated from inside the paddocks which have a lowered stocking rate. Alternatively, cattle have been always remaining within large equipping pricing. These particular criteria gotten of the bulls while in the particular months of season might determine why we located a lower tick weight into the men compared to people inside our study.