VARIATION OF HETEROPHIL/LYMPHOCYTE RATIO IN REHABILITATION OF MAGELLANIC PENGUINS (Spheniscus magellanicus, Foster 1781)

• DOI: 10.22533/at.ed.31019140811

• Palavras-chave: atena

• Keywords: Heterophil/Lymphocyte Rate, Oil Impact, Stress, Magellanic Penguins

• Abstract:

  The heterophil/lymphocyte

  ratio (H/L) has been proposed as a sensible

  chronic stress index in birds. This study aims at

  evaluating the H/L rate in Magellanic penguins

  impacted or not with oil before, during and after

  the rehabilitation process. Two blood smears

  were made of each bird, with an average break

  of 44 days, colored with Giemsa. The data of

  the first and the second collect were analyzed

  individually through the Mann-Whitney U test.

  The variation of the H/L rate between the

  two collects was analyzed through the t Test.

  There was no significant variation in the H/L

  rate between the two groups in the first collect

  (without oil=1.68±0.49; with oil =1.61±0.30),

  demonstrating similar level of stress. In the

  second collect the group without oil presented

  smaller H/L rate (1.06±0.29), when compared to

  the impacted group by oil (1.64±0.33), indicating

  a reduction in the level of stress of the group

  without oil. During the rehabilitation process,

  in other words, between the two collects, the

  average of the H/L rate of the group without oil

  corrected for 30 days was -0.79, corresponding

  to a fall in the level of stress of this group. On

  the other hand, in the group impacted for oil the

  average rate was 0.14, bigger (p=0.009). It is

  concluded that the group with oil has presented

  bigger H/L rate indicating the persistence of a

  potential situation of intoxications or stress.

• Número de páginas: 15