Progesterone and estradiol profiles in different reproductive stages of captive collared peccary (Pecari tajacu) females assessed by fecal metabolites.

Abstract The study determined the fecal progesterone and estradiol profiles in different reproductive stages of captive collared peccary (Pecari tajacu) females from eastern Mexico. Fifteen adult females were included. At the start of the study the females were either pregnant (early, mid, or late pregnancy), lactating, or non-lactating of unknown pregnancy status. Feces from each female were collected once a week during nine consecutive months to determine concentrations of fecal progesterone and estradiol metabolites using ELISA. Progesterone was similar in early (2048±285ng/g), mid (2254±274ng/g), and late pregnancy (2491±374ng/g), and in early-pregnant and non-lactating females (1154±274ng/g). Progesterone in lactating females (442±255ng/g) was lower than in females at any stage of pregnancy, but was similar to non-lactating females. Overall progesterone in pregnant females (2229±173ng/g) was higher than in lactating and non-lactating females together (772±189ng/g). Estradiol was similar in early (66±8ng/g), mid (83±9ng/g), late pregnant (109±15ng/g), and non-lactating females (64±9ng/g). Estradiol in lactating females (34±8ng/g) was similar to estradiol in early-pregnant and non-lactating females, but was lower than in females in late and mid pregnancy. Overall estradiol in pregnant females (79±6ng/g) was similar to non-lactating females, but higher than in lactating females. The progesterone and estradiol profiles of captive collared peccary females at different reproductive stages were determined by assessing concentrations of fecal hormone metabolites.

DRG product(s) used in the study above

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Progesterone Ahuja-Aguirre C1, López-deBuen L2, Rojas-Maya S3, Hernández-Cruz BC4.

Author Information

1. Universidad Veracruzana, Facultad de Medicina Veterinaria y Zootecnia, Circunvalación Esq. Yáñez, C.P. 91710, Veracruz, Mexico. Electronic address: [email protected].
2. Universidad Veracruzana, Facultad de Medicina Veterinaria y Zootecnia, Circunvalación Esq. Yáñez, C.P. 91710, Veracruz, Mexico. Electronic address: [email protected].
3. Universidad Nacional Autónoma de México, Facultad de Medicina Veterinaria y Zootecnia, Depto. de Reproducción-Endocrinología, Circuito Exterior S/N, Ciudad Universitaria, Del. Coyoacán, C.P. 04510, Cd. de México, Mexico. Electronic address: [email protected].
4. Universidad Veracruzana, Facultad de Medicina Veterinaria y Zootecnia, Circunvalación Esq. Yáñez, C.P. 91710, Veracruz, Mexico. Electronic address: [email protected].
Anim Reprod Sci. 2017 May;180:121-126. doi: 10.1016/j.anireprosci.2017.03.008. Epub 2017 Mar 18.
Copyright © 2017 Elsevier B.V. All rights reserved.
Link: https://www.ncbi.nlm.nih.gov/pubmed/28336266

by Oleg Vishnevski | Mar 17, 2017