Avaliação da atividade funcional dos neutrófilos sanguíneos em ovelhas primíparas e pluríparas da raça Lacaune

Santos, Maríndia Brachak dos; Libera, Alice Maria Melville Paiva Della; Souza, Fernando Nogueira de; Diniz, S.A.; Gregolin, Luana Carolina Bachmann; Costa, LA; Blagitz, Maiara Garcia

doi:10.1590/1678-4162-11416

Cited by 1 publication

(5 citation statements)

References 11 publications

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“…Results similar to our study also indicated that primiparous females had higher postpartum phagocytosis intensity in relation to multiparous females (SUCUPIRA et al, 2019;MEHRZAD et al, 2009). The results of the NBT test indicated that lambing negatively affects phagocytosis, as was already mentioned by other authors (KIMURA et al, 2006;SUCUPIRA et al, 2019;SANTOS et al, 2020). This deregularization early in lactation may occur, in part, due to deficiencies in the energy, protein, and minerals necessary for the composition and maintenance of the immune system (GOFF; KIMURA, 2009).…”

Section: Resultssupporting

confidence: 91%

“…The reduced phagocytic activity by neutrophils soon after lambing is well established in sheep and cattle (SANTOS et al, 2020;SUCUPIRA et al, 2019;MEHRZAD et al, 2009). Results similar to our study also indicated that primiparous females had higher postpartum phagocytosis intensity in relation to multiparous females (SUCUPIRA et al, 2019;MEHRZAD et al, 2009).…”

Section: Resultssupporting

confidence: 87%

“…Fonteque et al (2013) reported higher activity of neutrophils reactive to NBT in multiparous ewes, a result also observed in our study. However, Santos et al (2020) did not observe a difference in the EOM among sheep regardless of the number of lambings. By using the NBT reduction test we can indirectly measure the intracellular production of ERO by the neutrophils.…”

Section: Resultsmentioning

confidence: 56%

“…At seven days (M3), the percentage was higher than 15 days (M4) and 30 days after delivery (M5), while at 15 days (M4) the percentage was also higher than at 30 days after delivery (M5) (P<0.05). In the literature, only one study did not report a difference in the MOB between primiparous and multiparous sheep (SANTOS et al, 2020).…”

Section: Resultsmentioning

confidence: 97%

“…Moreover, during the peripartum period, ruminants are characterized by an immunological deregularization condition (TREVISI; MINUTI, 2018;HERNÁNDEZ-CASTELLANO et al, 2019;SUCUPIRA et al, 2019;SANTOS et al, 2020). Regarding innate immunity, neutrophils are a major line of defense in the body (SOUZA et al, 2012) and studies have shown that primiparous sheep and cows have a higher intensity of phagocytosis compared to multiparous females (SUCUPIRA et al, 2019;MEHRZAD et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Influence of lambing on the metabolic profile, neutrophil function and IgG levels in Lacaune sheep

Santos¹,

Schneider²,

Rodrigues³

et al. 2021

Rev Agr Acad

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The objective of this study was to evaluate the metabolic profile, the activity of blood neutrophils, and the immunoglobulin G levels of primiparous and multiparous sheep (Lacaune breed) during the first 30 days after lambing. Fifteen primiparous ewes (GPR) and 15 multiparous ewes (GPM) were used. Evaluations were performed on the days of lambing and at three, seven, fifteen and thirty days post-lambing. In general, the basal and bactericidal activity of neutrophils were lower in GPR than in GPM. Phagocytosis was greater in the primiparous sheep in the initial moments after lambing. Non-esterified fatty acid concentrations were highest for GPM, indicating a negative energy balance in this group. The results obtained in this study allow us to conclude that primiparous sheep have higher neutrophil phagocytosis, while this cell type has higher bactericidal activity in multiparous sheep. Multiparous ewes presented with higher lipomobilization due to maintenance needs and higher milk production.

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Section: Resultssupporting

confidence: 91%