Dietary inclusion of pine pollen alters sex ratio and promotes growth of Nile tilapia (Oreochromis niloticus, L. 1758)

Simple item page
dc.contributor.authorAbaho, Ivan
dc.contributor.authorAkoll, Peter
dc.contributor.authorJones, Clifford L.W.
dc.contributor.authorMasembe, Charles
dc.date.accessioned2022-12-27T17:08:43Z
dc.date.available2022-12-27T17:08:43Z
dc.date.issued2022
dc.description.abstractThe potential of pine pollen (PP) to masculinize sexually undifferentiated Nile tilapia was evaluated by feeding graded levels of PP (0.08–3.20 g kg-1 basal diet) to triplicate groups of three-day-old Nile tilapia for 28 days. Masculinization and associated differences in growth were compared to fish individuals fed the same basal diet with no PP (CT; negative control) and with 0.06 g 17α-methyltestosterone (MT) kg-1 basal diet (positive control). Both PP and MT treatments significantly skewed the expected 50:50 (male: female) ratio towards more male individuals. Notably, MT and 1.28 g PP kg-1 of diet produced a significantly high proportion of males (89.2 ± 2.2% and 80.0 ± 2.9% respectively), compared to 50.8 ± 2.2% in the CT treatment (P < 0.001). Except for 0.08 g PP kg-1 of diet, the final body weight and specific growth rate of individuals fed PP and MT-supplemented feeds were significantly higher than fish from the CT group. Although 1.28 g PP kg-1 diet produced the highest masculinization, the fish fed 3.20 g PP kg-1 diet had the highest final weight (14.73 ± 0.54 g), suggesting the presence of growth enhancers in PP. Similarly, a superior feed conversion ratio was recorded in both PP and MTtreated groups compared to the CT treatment (P = 0.024). However, the condition factor and survival rate of fish in all groups did not differ significantly. Overall, 1.28 g PP kg-1 diet was potent in sex inversion and promoted the growth of Nile tilapia, making PP a promising alternative to MT in the production of all-male stock.en_US
dc.identifier.citationAbaho, I., Akoll, P., Jones, C. L., & Masembe, C. (2022). Dietary inclusion of pine pollen alters sex ratio and promotes growth of Nile tilapia (Oreochromis niloticus, L. 1758). Aquaculture Reports, 27, 101407. https://doi.org/10.1016/j.aqrep.2022.101407en_US
dc.identifier.urihttps://doi.org/10.1016/j.aqrep.2022.101407
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6653
dc.language.isoenen_US
dc.publisherAquaculture Reportsen_US
dc.subjectAll-male tilapiaen_US
dc.subjectAquacultureen_US
dc.subjectPhytoextracten_US
dc.subjectPine pollenen_US
dc.subjectSynthetic hormoneen_US
dc.subject17α-methyltestosteroneen_US
dc.titleDietary inclusion of pine pollen alters sex ratio and promotes growth of Nile tilapia (Oreochromis niloticus, L. 1758)en_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Dietary inclusion of pine pollen alters sex ratio and promotes growth of Nile.pdf
Size:
3.01 MB
Format:
Adobe Portable Document Format
Description:
Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Natural Sciences