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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2021
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ftdoajarticles:oai:doaj.org/article:d9e978f51d3c47ac8ba7b8eb10833572 2023-05-15T16:09:57+02:00 Morphological Characteristics of the Sperm of the Peregrine Falcon ( Falco peregrinus ) during the Reproductive Season Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño 2021-08-01T00:00:00Z https://doi.org/10.3390/vetsci8090169 https://doaj.org/article/d9e978f51d3c47ac8ba7b8eb10833572 EN eng MDPI AG https://www.mdpi.com/2306-7381/8/9/169 https://doaj.org/toc/2306-7381 doi:10.3390/vetsci8090169 2306-7381 https://doaj.org/article/d9e978f51d3c47ac8ba7b8eb10833572 Veterinary Sciences, Vol 8, Iss 169, p 169 (2021) peregrine falcon sperm morphology sperm defects reproductive season Veterinary medicine SF600-1100 article 2021 ftdoajarticles https://doi.org/10.3390/vetsci8090169 2022-12-31T05:26:38Z 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. Article in Journal/Newspaper Falco peregrinus peregrine falcon Directory of Open Access Journals: DOAJ Articles Veterinary Sciences 8 9 169 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
peregrine falcon sperm morphology sperm defects reproductive season Veterinary medicine SF600-1100 |
spellingShingle |
peregrine falcon sperm morphology sperm defects reproductive season Veterinary medicine SF600-1100 Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño Morphological Characteristics of the Sperm of the Peregrine Falcon ( Falco peregrinus ) during the Reproductive Season |
topic_facet |
peregrine falcon sperm morphology sperm defects reproductive season Veterinary medicine SF600-1100 |
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 |
Article in Journal/Newspaper |
author |
Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño |
author_facet |
Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño |
author_sort |
Andrea Oliveira |
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 AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/vetsci8090169 https://doaj.org/article/d9e978f51d3c47ac8ba7b8eb10833572 |
genre |
Falco peregrinus peregrine falcon |
genre_facet |
Falco peregrinus peregrine falcon |
op_source |
Veterinary Sciences, Vol 8, Iss 169, p 169 (2021) |
op_relation |
https://www.mdpi.com/2306-7381/8/9/169 https://doaj.org/toc/2306-7381 doi:10.3390/vetsci8090169 2306-7381 https://doaj.org/article/d9e978f51d3c47ac8ba7b8eb10833572 |
op_doi |
https://doi.org/10.3390/vetsci8090169 |
container_title |
Veterinary Sciences |
container_volume |
8 |
container_issue |
9 |
container_start_page |
169 |
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1765995206622052352 |