Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria
The assessment of reproduction characteristics of an Algerian local sheep in a semi-arid zone was the objective of this study. Twenty rams of Ouled Djellal breed were used. The parameters analyzed were testosterone rate, testicular diameter, ejaculate volume, sperm concentration, mass motility, and...
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| Format: | Article |
| Language: | English |
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Kafkas University, Faculty of Veterinary Medicine
2023-10-01
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| Series: | Kafkas Universitesi Veteriner Fakültesi Dergisi |
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| Online Access: | https://vetdergikafkas.org/pdf.php?id=3042 |
| _version_ | 1827594919736246272 |
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| author | Mourad TAHERTI Nassima AIT ISSAD Djamel KHELEF Nora MIMOUNE |
| author_facet | Mourad TAHERTI Nassima AIT ISSAD Djamel KHELEF Nora MIMOUNE |
| author_sort | Mourad TAHERTI |
| collection | DOAJ |
| description | The assessment of reproduction characteristics of an Algerian local sheep in a semi-arid
zone was the objective of this study. Twenty rams of Ouled Djellal breed were used. The
parameters analyzed were testosterone rate, testicular diameter, ejaculate volume, sperm
concentration, mass motility, and percentage of live and dead spermatozoids (SPZ). The
results obtained showed that the mean monthly testosterone rate was high throughout
the year (4 ng/mL), increased in spring, peaked in summer (July) (4.9 ng/mL), and
decreased in autumn and winter to reach a minimum value (January) of 1.9 ng/mL.
Similarly, testicular diameter, ejaculate volume, sperm concentration and count showed
high levels in spring and summer and decreased in autumn and winter. The maximum
and minimum values were respectively, 7.09 cm, 1.55 mL, 4 billion/mL, 3.5, 79.37%, 21%
and 5.46 cm, 0.80 mL, 2.50 billion SPZ/mL, 2.81, 77.36%, and 20.42%. Significant effects
of season on serum testosterone levels, testicular conformation, ejaculate volume, and
concentration were recorded in this study. Indeed, the rates of these parameters increased
significantly (P<0.05) during spring/summer and decreased during autumn/winter
except for motility, and the percentage of live and dead sperm. Testicular conformation
was positively correlated with testosterone concentration, ejaculate volume, and semen
concentration. To conclude, Ouled Djellal breed seemed not to be very sensitive to the
photoperiod and little affected by high temperature. |
| first_indexed | 2024-03-09T02:44:15Z |
| format | Article |
| id | doaj.art-631b04f6b2d74882831aa90bdba8f493 |
| institution | Directory Open Access Journal |
| issn | 1309-2251 |
| language | English |
| last_indexed | 2024-03-09T02:44:15Z |
| publishDate | 2023-10-01 |
| publisher | Kafkas University, Faculty of Veterinary Medicine |
| record_format | Article |
| series | Kafkas Universitesi Veteriner Fakültesi Dergisi |
| spelling | doaj.art-631b04f6b2d74882831aa90bdba8f4932023-12-05T21:27:27ZengKafkas University, Faculty of Veterinary MedicineKafkas Universitesi Veteriner Fakültesi Dergisi1309-22512023-10-0129671772610.9775/kvfd.2023.303293042Reproduction characteristics of ouled djellal rams in a semi-arid area in algeriaMourad TAHERTI0Nassima AIT ISSAD1Djamel KHELEF2Nora MIMOUNE3Laboratory of Natural Bio-Resources, Department of Biology, Faculty of Nature and Life Sciences, University Hassiba Benbouali of Chlef, PO Box 151, (02000) Chlef, ALGERIAAnimal Health & Production Laboratory, Higher National Veterinary School, Algiers, ALGERIAAnimal Health & Production Laboratory, Higher National Veterinary School, Algiers, ALGERIAAnimal Health & Production Laboratory, Higher National Veterinary School, Algiers, ALGERIAThe assessment of reproduction characteristics of an Algerian local sheep in a semi-arid zone was the objective of this study. Twenty rams of Ouled Djellal breed were used. The parameters analyzed were testosterone rate, testicular diameter, ejaculate volume, sperm concentration, mass motility, and percentage of live and dead spermatozoids (SPZ). The results obtained showed that the mean monthly testosterone rate was high throughout the year (4 ng/mL), increased in spring, peaked in summer (July) (4.9 ng/mL), and decreased in autumn and winter to reach a minimum value (January) of 1.9 ng/mL. Similarly, testicular diameter, ejaculate volume, sperm concentration and count showed high levels in spring and summer and decreased in autumn and winter. The maximum and minimum values were respectively, 7.09 cm, 1.55 mL, 4 billion/mL, 3.5, 79.37%, 21% and 5.46 cm, 0.80 mL, 2.50 billion SPZ/mL, 2.81, 77.36%, and 20.42%. Significant effects of season on serum testosterone levels, testicular conformation, ejaculate volume, and concentration were recorded in this study. Indeed, the rates of these parameters increased significantly (P<0.05) during spring/summer and decreased during autumn/winter except for motility, and the percentage of live and dead sperm. Testicular conformation was positively correlated with testosterone concentration, ejaculate volume, and semen concentration. To conclude, Ouled Djellal breed seemed not to be very sensitive to the photoperiod and little affected by high temperature.https://vetdergikafkas.org/pdf.php?id=3042spermramphotoperiodlocal breedtemperatureseason |
| spellingShingle | Mourad TAHERTI Nassima AIT ISSAD Djamel KHELEF Nora MIMOUNE Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria Kafkas Universitesi Veteriner Fakültesi Dergisi sperm ram photoperiod local breed temperature season |
| title | Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria |
| title_full | Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria |
| title_fullStr | Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria |
| title_full_unstemmed | Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria |
| title_short | Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria |
| title_sort | reproduction characteristics of ouled djellal rams in a semi arid area in algeria |
| topic | sperm ram photoperiod local breed temperature season |
| url | https://vetdergikafkas.org/pdf.php?id=3042 |
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