2016
DOI: 10.1590/s0100-736x2016000500005
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Identification of lamb flocks susceptible and resistant against Brachiaria poisoning

Abstract: This study was designed to assess the influence of genetic resistance against brachiaria poisoning in sheep. Two groups of sheep, one identified as susceptible (formed by two ewes and one ram) and the other as resistant against brachiaria poisoning (formed by three ewes and one ram) were selected. Sheep considered susceptible were those that presented clinical signs of brachiaria poisoning at any time of their life; resistant sheep were those that even raised on Brachiaria spp. pastures, did not developed any … Show more

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Cited by 15 publications
(20 citation statements)
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“…The concentrations of protodioscin (1.59±1.33%) were similar to those previously considered toxic for lambs. Concentrations ranging from 0.74 to 2.56% have been reported in weaned lambs (Mustafa et al 2012, Pupin et al 2016 and from 0.62 to 1.15% in suckling lambs (Melo et al 2018). MS = mineral supplementation, 0.8% EPS = lambs receiving 0.8% bw EPS, 1.6% EPS = lambs receiving 1.6% bw EPS, 2.4% EPS = lambs receiving 2.4% of bw EPS, b age at onset of clinical signs, c onset of clinical signs after the start of the experimental period (after weaning), d bw = body weight.…”
Section: Discussionmentioning
confidence: 99%
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“…The concentrations of protodioscin (1.59±1.33%) were similar to those previously considered toxic for lambs. Concentrations ranging from 0.74 to 2.56% have been reported in weaned lambs (Mustafa et al 2012, Pupin et al 2016 and from 0.62 to 1.15% in suckling lambs (Melo et al 2018). MS = mineral supplementation, 0.8% EPS = lambs receiving 0.8% bw EPS, 1.6% EPS = lambs receiving 1.6% bw EPS, 2.4% EPS = lambs receiving 2.4% of bw EPS, b age at onset of clinical signs, c onset of clinical signs after the start of the experimental period (after weaning), d bw = body weight.…”
Section: Discussionmentioning
confidence: 99%
“…The expected lesions for determining poisoning in the lambs were restricted to specific sites of non-pigmented skin, mainly in the face and ears. Clinical signs consisted of edema, alopecia, erythema, formation and detachment of scabs, apathy, anorexia, jaundice, and weight loss (Mustafa et al 2012, Porto et al 2013, Pupin et al 2016, Melo et al 2018.…”
Section: Methodsmentioning
confidence: 99%
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“…Photosensitization occurred in only a few animals probably due to greater predisposition or resistance to this illness. According to Pupin et al (2016), sheep may have genetic factors that make them resistant to intoxication by Urochloa spp. and thus not manifest these problems.…”
Section: Illness and Mortalitymentioning
confidence: 99%