Aspectos hematológicos de catetos (Tayassu tajacu) mantidos em cativeiro

Abstract

Pesq. Vet. Bras. 31(2):173-177, fevereiro 2011 RESUMO.-Este estudo teve por objetivo determinar os valores hematológicos de Tayassu tajacu (catetos) mantidos em cativeiro. Foram utilizados 26 catetos, sendo 21 adultos (13 machos e 8 fêmeas) e 5 filhotes (três machos e duas fêmeas), mantidos na Fazenda Experimental do Almada e no Laboratório de Etologia Aplicada, pertencente à Universidade Estadual de Santa Cruz, Ilheus, BA. Amostras de sangue foram colhidas, da veia cefálica, para realização dos hemogramas. A análise estatística foi obtida por meio do teste "t" de Student, com nível de significância de 95%. Na comparação entre os animais instalados em baias e piquetes não foi observada diferença significativa, no entanto observou-se um maior valor da proteína plasmática total nos machos (p<0,05). Ao se comparar animais adultos com jovens, observou-se diferença no valor do volume globular (p<0,05) e uma relação neutrófilo segmentado/linfócito inversa, com predomínio dos neutrófilos segmentados sobre os linfócitos nos animais jovens. Em relação à mensuração das células observou-se semelhança ao descrito para vacas, gato e cavalos. Estes resultados poderão subsidiar novos estudos, assim como futuras interpretações em animais hígidos ou doentes, com atenção às condições de manejo, clima e principalmente forma de contenção e tipo de população em que os estudos são realizados. The aim of the study was to determine the blood values for the Tayassu tajacu (collared peccary) in captivity. Twenty-six collared peccary, being twenty-one adults (13 males and 8 females) and five young (3 males and 2 females) were maintained at the Experimental Farm of Almada and the Laboratory of Applied Ethology, belonging to the University Estadual of the Santa Cruz, Ilheus, Bahia, Brazil. Blood samples were collected from the cephalic vein to perform the complete blood count. Statistical analysis was performed using the Student's t-test, with a significance level of 95%. There was no significant difference from animals maintained in stalls or pickets, however there was a higher value of total plasma protein in males (p<0,05). When comparing adult animals with young animals, we observed differences in the packed cell volume (p<0,05) and a reverse relationship between mature neutrophils/lymphocytes, with a predominance of mature neutrophils (46,8%) on lymphocytes (45%) for young animals. Regarding the measurement of the cells was observed similarity to that described for cows, cats and horses. These results could support new studies, as well as future interpretations in healthy or sick animals, with attention how to handle the management of animals, weather and especially the form of restraint and type of population in what these studies are conducted.INDEX TERMS: Peccary, Tayassu tajacu, measurement cell, normal blood values.

Collared Pecary (tayassu tajacu) as a new model of renal ischemic injury induced by clamping the renal artery

“…The hematological profile of the animals showed no differences between treatment groups and were in accordance with references to species 18,28 . Thus, the animals showed no changes in normocromia normocitosis and platelets in all phases of the experiment, including the control group.…”

“…However, as in all periods the average value found was above the benchmark for peccaries 18,28 , featuring leukocytosis, it is believed that these values consist of a standard among animals used and were not caused by the induction of nephropathy.…”

“…Thus, the animals showed no changes in normocromia normocitosis and platelets in all phases of the experiment, including the control group. However, on the 5th day after surgical induction a slight decrease was observed, which can be justified by restraint, therefore, both chemical and physical restraint can cause changes in haematological parameters in animals 28,29 . The platelet count of the animals was within the range found for domestic pigs 30 .…”

Hematological markers and biochemical profiles in terms of gender and age of captive collared peccaries (Tayassu tajacu) in eastern Amazon

“…When interpreting these tests, it is essential to compare the results with reference ranges that are suitable for the species (George et al, 2010). Few studies have been conducted on the hematological and biochemical characteristics of T. tajacu (Santos, 1999;Schettini et al, 2005;Almeida et al, 2011), particularly on animals raised in the Amazon biome (Schettini et al, 2005;Pereira, 2009).…”

“…Some studies have been conducted on husbandry and reproduction in this species (Costa and Paula, 2005;Mayor et al, 2007;Silva et al, 2011), but few studies have evaluated the health of free-living animals or animals raised in captivity, particularly in regard to blood biochemistry and hematology (Almeida et al, 2011). Among the laboratory tests used to assess animal health, complete blood counts and biochemical analyses are notable for their ease of implementation and interpretation.…”