Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season
The morphological characteristics of different sperm cells (normal, abnormal, and immature) in the peregrine falcon during the reproductive season were analysed. We also classified the main sperm defects found in semen. Semen samples were collected from mature peregrine falcons via cloacal massage a...
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ftpubmed:oai:pubmedcentral.nih.gov:8473187 2023-05-15T16:09:57+02:00 Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season Oliveira, Andrea Martínez, Felisa Gil, Lydia Luño, Victoria 2021-08-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8473187/ http://www.ncbi.nlm.nih.gov/pubmed/34564563 https://doi.org/10.3390/vetsci8090169 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8473187/ http://www.ncbi.nlm.nih.gov/pubmed/34564563 http://dx.doi.org/10.3390/vetsci8090169 © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). CC-BY Vet Sci Article Text 2021 ftpubmed https://doi.org/10.3390/vetsci8090169 2021-10-03T01:15:38Z The morphological characteristics of different sperm cells (normal, abnormal, and immature) in the peregrine falcon during the reproductive season were analysed. We also classified the main sperm defects found in semen. Semen samples were collected from mature peregrine falcons via cloacal massage and stained with Diff-Quik stain. The percentages of normal, abnormal, and immature sperm cells were determined by bright-field optical microscopy. The number of normal spermatozoa were greater at the initial stage and subsequently decreased during the middle and later stages of the reproductive season (p < 0.01). In contrast, the percentage of abnormal spermatozoa increased significantly in the middle and end stages of the reproductive season (p < 0.05), whereas the proportion of immature spermatozoa remained stable during the study. Head defects represented the greatest proportion of morphological abnormalities, followed by the defects in the tail and midpiece regions. A small percentage of multiple defects and cytoplasmic droplets were also observed in the falcon spermatozoa. The findings of this study might be important for the development of future conservation protocols for falcon sperm. Text Falco peregrinus peregrine falcon PubMed Central (PMC) Veterinary Sciences 8 9 169 |
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Article Oliveira, Andrea Martínez, Felisa Gil, Lydia Luño, Victoria Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
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Article |
description |
The morphological characteristics of different sperm cells (normal, abnormal, and immature) in the peregrine falcon during the reproductive season were analysed. We also classified the main sperm defects found in semen. Semen samples were collected from mature peregrine falcons via cloacal massage and stained with Diff-Quik stain. The percentages of normal, abnormal, and immature sperm cells were determined by bright-field optical microscopy. The number of normal spermatozoa were greater at the initial stage and subsequently decreased during the middle and later stages of the reproductive season (p < 0.01). In contrast, the percentage of abnormal spermatozoa increased significantly in the middle and end stages of the reproductive season (p < 0.05), whereas the proportion of immature spermatozoa remained stable during the study. Head defects represented the greatest proportion of morphological abnormalities, followed by the defects in the tail and midpiece regions. A small percentage of multiple defects and cytoplasmic droplets were also observed in the falcon spermatozoa. The findings of this study might be important for the development of future conservation protocols for falcon sperm. |
format |
Text |
author |
Oliveira, Andrea Martínez, Felisa Gil, Lydia Luño, Victoria |
author_facet |
Oliveira, Andrea Martínez, Felisa Gil, Lydia Luño, Victoria |
author_sort |
Oliveira, Andrea |
title |
Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
title_short |
Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
title_full |
Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
title_fullStr |
Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
title_full_unstemmed |
Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season |
title_sort |
morphological characteristics of the sperm of the peregrine falcon (falco peregrinus) during the reproductive season |
publisher |
MDPI |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8473187/ http://www.ncbi.nlm.nih.gov/pubmed/34564563 https://doi.org/10.3390/vetsci8090169 |
genre |
Falco peregrinus peregrine falcon |
genre_facet |
Falco peregrinus peregrine falcon |
op_source |
Vet Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8473187/ http://www.ncbi.nlm.nih.gov/pubmed/34564563 http://dx.doi.org/10.3390/vetsci8090169 |
op_rights |
© 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/vetsci8090169 |
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Veterinary Sciences |
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8 |
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9 |
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169 |
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1765995203024388096 |