Disorders and Diseases of Pregnancy

Pearson, Lisa K.; Rodriguez, Jacobo S.; Tibary, Ahmed

doi:10.1016/b978-1-4377-2352-6.00023-7

Cited by 7 publications

(22 citation statements)

References 48 publications

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“…Many placentas are described as smaller in these cases or have avillous zones. Most crias will also be smaller than average (Pearson et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Like in Old World camelids, the placenta of the alpaca is epitheliochorial, diffuse and of the non‐deciduate type (Arthur, A/Rahim, & Al Hindi, ; Brown, ; Jones, Skidmore, & Aplin, ; Smith, Peter, & Pugh, ; Steven, Burton, Sumar, & Nathanielsz, ), while it is also characterized as microcotyledonary (Aba, ; Abd‐Elnaeim et al, ; Brown, ; Pearson, Rodriguez, & Tibary, , ). It has some similarities with some of the aspects of the placenta found in horses, pigs and bush babies (Iturrizaga et al, ; Olivera, Zago, Leiser, Jones, & Bevilacqua, ).…”

Section: Introductionmentioning

confidence: 99%

“…Common findings in the placenta of New World camelids are hippomanes in the allantoic cavity and small, firm pustules or plaques at the base of the umbilical cord, on the amniotic membrane (Morton, ; Pearson, Rodriguez, & Tibary, , ; Rodriguez, Pearson, & Tibary, ).…”

Section: Introductionmentioning

confidence: 99%

“…In case of pregnancy loss, abortion, stillbirth or premature birth, the placenta should be properly examined to detect any abnormalities such as incompleteness, placentitis, oedema or any other abnormalities (Pearson, Rodriguez, & Tibary, ; Schaefer et al, ; Tibary et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Macroscopic evaluation of the placenta of the alpaca (Vicugna pacos)

Meesters

Opsomer

Govaere

2019

Reprod Domestic Animals

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Macroscopic evaluation of the placenta is an essential post‐partum examination in the alpaca and can be of special interest in case of abortion, premature birth or stillbirth. Since there are not many reference values regarding macroscopic properties of normal alpaca placentas, a small descriptive study was conducted. Only placentae from normally foaling alpaca mares, giving birth to healthy crias, after a full‐term and uneventful gestation (±350 days; range 335–360 days) were taken into account (N = 11). Crias weighed (±SD) 7.7 ± 2.25 kg (range 5.5–10 kg), while the mean weight of the full‐term placentas was 0.8 ± 0.19 kg, that is 10% of the bodyweight of the crias. The weight of the allantoamnion and chorion was 0.2 ± 0.07 kg and 0.5 ± 0.13 kg, respectively. The umbilical cord length was 8.8 ± 2.84 cm, and the length of the pregnant and non‐pregnant uterine horns was 69.4 ± 12.77 cm and 54.5 ± 6.81 cm, respectively. The length of the corpus was 14.6 ± 4.68 cm, and the distance from the umbilicus to the corpus was 18.5 ± 6.13 cm. The tissue volume of the allantoamnion was 0.14 ± 0.079 L, and the chorionic volume was 0.37 ± 0.078 L. The surface area of the allantoamnion and the chorion was 87.6 ± 15.56 dm2 and 72.3 ± 9.28 dm2, respectively. All placentas had small calcifications either around the umbilical cord alone or around the umbilicus and blood vessels of the pregnant uterine horn. These measurements could be used to macroscopically evaluate alpaca placentas, although more research is needed to extend our knowledge of macroscopic evaluation of normal and abnormal placentas.

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“…Many placentas are described as smaller in these cases or have avillous zones. Most crias will also be smaller than average (Pearson et al, ).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Macroscopic evaluation of the placenta of the alpaca (Vicugna pacos)

Meesters

Opsomer

Govaere

2019

Reprod Domestic Animals

View full text Add to dashboard Cite

show abstract

“…Pregnancy loss is the second most common complaint in camelid reproduction (Pearson et al, 2014;Tibary et al, 2007;Verdier and Bornstein, 2010). Epidemiological data on the incidence of pregnancy loss in camelids is scarce (Knight et al, 1995;Tibary, 2010;Vaughan and Tibary, 2006).…”

Section: Introductionmentioning

confidence: 99%