Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) 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...
| Автори: | , , , |
|---|---|
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
MDPI AG
2021-08-01
|
| Серія: | Veterinary Sciences |
| Предмети: | |
| Онлайн доступ: | https://www.mdpi.com/2306-7381/8/9/169 |
| _version_ | 1827681135905210368 |
|---|---|
| author | Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño |
| author_facet | Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño |
| author_sort | Andrea Oliveira |
| collection | DOAJ |
| 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 (<i>p</i> < 0.01). In contrast, the percentage of abnormal spermatozoa increased significantly in the middle and end stages of the reproductive season (<i>p</i> < 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. |
| first_indexed | 2024-03-10T07:09:05Z |
| format | Article |
| id | doaj.art-d9e978f51d3c47ac8ba7b8eb10833572 |
| institution | Directory Open Access Journal |
| issn | 2306-7381 |
| language | English |
| last_indexed | 2024-03-10T07:09:05Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Veterinary Sciences |
| spelling | doaj.art-d9e978f51d3c47ac8ba7b8eb108335722023-11-22T15:35:38ZengMDPI AGVeterinary Sciences2306-73812021-08-018916910.3390/vetsci8090169Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive SeasonAndrea Oliveira0Felisa Martínez1Lydia Gil2Victoria Luño3Department of Animal Pathology, Faculty of Veterinary Medicine, Universidad de Zaragoza, 50013 Zaragoza, SpainDepartment of Animal Pathology, Faculty of Veterinary Medicine, Universidad de Zaragoza, 50013 Zaragoza, SpainDepartment of Animal Pathology, Faculty of Veterinary Medicine, Universidad de Zaragoza, 50013 Zaragoza, SpainDepartment of Animal Pathology, Faculty of Veterinary Medicine, Universidad de Zaragoza, 50013 Zaragoza, SpainThe 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 (<i>p</i> < 0.01). In contrast, the percentage of abnormal spermatozoa increased significantly in the middle and end stages of the reproductive season (<i>p</i> < 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.https://www.mdpi.com/2306-7381/8/9/169peregrine falconsperm morphologysperm defectsreproductive season |
| spellingShingle | Andrea Oliveira Felisa Martínez Lydia Gil Victoria Luño Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season Veterinary Sciences peregrine falcon sperm morphology sperm defects reproductive season |
| title | Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season |
| title_full | Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season |
| title_fullStr | Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season |
| title_full_unstemmed | Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season |
| title_short | Morphological Characteristics of the Sperm of the Peregrine Falcon (<em>Falco peregrinus</em>) during the Reproductive Season |
| title_sort | morphological characteristics of the sperm of the peregrine falcon em falco peregrinus em during the reproductive season |
| topic | peregrine falcon sperm morphology sperm defects reproductive season |
| url | https://www.mdpi.com/2306-7381/8/9/169 |
| work_keys_str_mv | AT andreaoliveira morphologicalcharacteristicsofthespermoftheperegrinefalconemfalcoperegrinusemduringthereproductiveseason AT felisamartinez morphologicalcharacteristicsofthespermoftheperegrinefalconemfalcoperegrinusemduringthereproductiveseason AT lydiagil morphologicalcharacteristicsofthespermoftheperegrinefalconemfalcoperegrinusemduringthereproductiveseason AT victorialuno morphologicalcharacteristicsofthespermoftheperegrinefalconemfalcoperegrinusemduringthereproductiveseason |