Ticks features a negative influence on milk products and meats cows creation solutions worldwide, on the concomitant exposure they represent into the sign of a few extremely important contagious problems. Colombian cows types try marketed round the various other agroecological nations and are generally confronted with various other environmental challenges. Inside humid and you may more comfortable climates such as those on tropics, tick load and heat fret are essential items that lose animals show. The goal of this study would be to define tick load into the five Colombian cattle types and measure the relationship between temperature worry and you will tick weight inside Bos taurus cattle around exotic conditions. Tick relying was conducted inside the 1332 cows regarding Romosinuano (ROMO), Costeno scam Cuernos (CCC), San Martinero (SM) and you will Blanco Orejinegro (BON) types, found in the Caribbean, Orinoquia and you may Andean nations. Crucial signs and you may environment details was basically taken to calculate an enthusiastic adaptability directory (AI) and you will a temperature moisture index (THI). A keen AI 75.
Overall performance
Abilities shown a varying distribution from clicks on your body regarding individuals that ranged according to the agroecological part. A decreased tick burden was observed in the fresh ROMO reproduce (12.8 ± 2.6), since the large tick weight is observed in CCC (30.8 ± dos.3), which have been located in the exact same agroecological region. SM and you may ROMO pets having an AI > dos got a top tick load than the competitors which had a keen bekar hiriМ‡stiМ‡yan kadinlarla nerede taniЕџilir AI
History
Ticks was bloodsucking ectoparasites one live of the eating on bloodstream of different partner pets, wildlife and you can animals variety. Presses are important in hotter, wetter habitats where they can affect farming production otherwise acceptably managed . Rhipicephalus (Boophilus) microplus is actually an economically essential tick commonly delivered on southern area hemisphere plus in the fresh new southern says of your own United states of america, and you can will act as a beneficial vector into alert out-of babesiosis and you will anaplasmosis . Rhipicephalus microplus is the tick into the large bad financial impact towards the chicken and you can milk cows marketplace regarding Main and you may South The united states, and you may Australia [step three, 4]. Within the Colombia, R. microplus might have been stated in a lot of divisions along the Caribbean, the brand new Andean and Orinoquia countries .
Financial loss for the plagued cows are caused by skin surface damage, procedures can cost you, losses on the alert off tick-borne sickness, and the head negative influence on animal output [cuatro, 6]. Inside the Bos taurus cows, for each and every engorging female tick accounts for an average death of step one.37 ± 0.25 grams regarding body weight for every single private, during B. taurus ? B. indicus crosses, this value might have been estimated since the 1.18 ± 0.21 g/engorging tick. It lbs losses isn’t just because of the blood losses for the reason that ticks, and because of cravings inhibition and you will smaller provide intake, that may make up up to 65% of your own body weight anxiety. Furthermore, customizations of metabolic variables and impaired digestion of the interference with typical abomasal outflow used in experimentally plagued cows mean that the outcome off blood loss into efficiency merely demonstrates to you on twenty-five% of one’s full bodyweight losses .
Climate is one of the many products controlling tick shipments due so you’re able to their regulatory impact on the newest tick lifetime-duration . Alterations in ecological requirements possess a positive otherwise bad effect to the tick burdens and on new psychological temperature controls components from plagued cows . Multiple indicator have been designed to monitor the heat worry condition in different animals species. Heat-moisture list (THI) combines the effects regarding air heat and you will humidity in the amount of thermal stress . Almost every other indicator including Benezra’s coefficient regarding flexibility (AI) and/or Iberia temperature tolerance test account fully for vital cues from inside the animals for example rectal heat and you will respiratory rate.