title: A case of meconium aspiration syndrome in a bottlenose dolphin (Tursiops truncatus) calf.
abstract: Stillbirth and neonatal mortality are significant problems in captive breeding of dolphins, however, the causes of these problems are not fully understood. Here, we report a case of meconium aspiration syndrome (MAS) in a male neonate of bottlenose dolphin (Tursiops truncates) who died immediately after birth. At necropsy, a true knot was found in the umbilical cord. The lungs showed diffuse intraalveolar edema, hyperemic congestion and atelectasis due to meconium aspiration with mild inflammatory cell infiltration. Although the exact cause of MAS in this case was unknown, fetal hypoxia due possibly to the umbilical knot might have been associated with MAS, which is the first report in dolphins. MAS due to perinatal asphyxia should be taken into account as a possible cause of neonatal mortality and stillbirth of dolphin calves.
authors: Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinkuu ourai Kita, Izumisano-shi, Osaka 598-8531, Japan.
authors: Miyuu
authors: M
authors: Tanaka
authors: Takeshi
authors: T
authors: Izawa
authors: Mitsuru
authors: M
authors: Kuwamura
authors: Miki
authors: M
authors: Ozaki
authors: Tatsuko
authors: T
authors: Nakao
authors: Shu
authors: S
authors: Ito
authors: Jyoji
authors: J
authors: Yamate
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D050681:Bottle-Nosed Dolphin; D017809:Fatal Outcome; D008297:Male; D008471:Meconium Aspiration Syndrome / Q000473:pathology / Q000662:veterinary*; D014470:Umbilical Cord / Q000473:pathology*
references: Vet Pathol. 1992 Mar;29(2):104-11
references: 1378669
references: Int J Pediatr. 2012;2012:359571
references: 22164183
references: Placenta. 2009 Dec;30(12):1083-8
references: 19853300
references: Semin Perinatol. 2002 Feb;26(1):79-82
references: 11876571
references: Early Hum Dev. 2009 Oct;85(10):617-20
references: 19833459
references: Reprod Biol Endocrinol. 2007 Jun 28;5:26
references: 17597550
references: Eur J Obstet Gynecol Reprod Biol. 2001 Sep;98(1):36-9
references: 11516797
references: J Vet Diagn Invest. 2006 Nov;18(6):622-7
references: 17121098
references: Anim Reprod Sci. 2005 Nov;90(1-2):1-30
references: 16257594
references: Pediatr Dev Pathol. 2001 Mar-Apr;4(2):144-53
references: 11178630
references: Hum Pathol. 2008 Jun;39(6):948-53
references: 18430456
references: Med J Armed Forces India. 2010 Apr;66(2):152-7
references: 27375325
references: Vet Pathol. 2007 Jan;44(1):88-92
references: 17197629