Comparison of the Lipid Composition of Three Adipose Tissue Types of Male and Female Wild Nile Crocodiles (<i>Crocodylus niloticus</i>)

Osthoff, Gernot; Hugo, A.; Govender, Danny; Huchzermeyer, F. W.; Bouwman, Hindrik

doi:10.1670/13-096

Cited by 7 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fat cells have wide nuclei able to pick up stored fat quickly. Osthoff et al (2014) studied different adipose tissues of C. niloticus and found no statistically significant differences between the stheatoteca and the abdominal tissue. They reported that males have higher SFA content (44.4%) than that of PUFA and MUFA.…”

Section: Resultsmentioning

confidence: 96%

Lipids of Amazon Caimans: A source of fatty acids

Junior¹,

Francisco²,

Beirão³

et al. 2016

Afr. J. Biotechnol.

View full text Add to dashboard Cite

Some species of fish and other aquatic organism are important sources of protein and fatty acids that are beneficial to human health and can be industrially processed. The fatty acid profile of Caiman crocodilus and Melanosuchus niger (native to the Brazilian Amazon flooded forest) was determined in samples of a commercial cut (tail fillet) and fat (fat body and somatic fat) of these two species. There were no statistically significant differences in the total lipid content between them (p ≥ 0.05) and both had higher levels of palmitic, stearic (saturated), and oleic (unsaturated) acids. However, omega 3 (ω-3) and omega 6 (ω-6) were not detected in the samples of the commercial cut; they were present only in the fats evaluated. Clinical studies are necessary to assess the influence of fatty acids from Amazon Caimans on human diet and the feasibility of obtaining new products such as nutraceuticals.

show abstract

Section: Resultsmentioning

confidence: 96%

Lipids of Amazon Caimans: A source of fatty acids

Junior¹,

Francisco²,

Beirão³

et al. 2016

Afr. J. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…In August 2010, we collected muscle samples from the tails of twelve crocodiles (CS1-CS12) from rivers representing seven catchments (Sabie, Olifants, Crocodile, Levuvhu, Shingwedzi, Nwaswitsontso and Letaba rivers). More about these crocodiles can be found in Osthoff et al (2014).…”

Section: Methodsmentioning

confidence: 99%

Heavy metals in muscle tissue of healthy crocodiles from the Kruger National Park, South Africa

2016

Self Cite

View full text Add to dashboard Cite

“…Surface area (SA) was measured in QGIS using a vector polygon layer and outlining the crocodile's body. For the SA morphometric measurement, the tails were included as this is an area of fat deposition (Osthoff et al, 2014), whereas the crocodiles' legs were not included as their positions were inconsistent from animal to animal. The perimeter was measured with the same vector polygon layer by extracting the length of the outline used to create the SA morphometric.…”

Section: Deriving Morphometric Datamentioning

confidence: 99%

Remote body condition scoring of Nile crocodiles (Crocodylus niloticus) using uncrewed aerial vehicle derived morphometrics

Viljoen,

Webb,

Myburgh

et al. 2023

Front. Anim. Sci.

View full text Add to dashboard Cite

Population surveys of crocodilians using uncrewed aerial vehicles (UAV) or drones may become accurate and cost-effective alternatives to more traditional approaches. However, there are currently no quantitative methods for deriving body condition scores of crocodilians through remote sensing. This study presents seven UAV-based morphometric measures collected from rectified aerial imagery of farmed Nile crocodiles. Two hundred and eighty-eight Nile crocodiles, from two commercial crocodile farms in South Africa were included in this study. One farm housed crocodiles which appeared to have wider abdominal girths than those on the second farm, allowing comparisons for a range of sizes and body condition states. An initial disturbance assessment was conducted, and an appropriate flight altitude selected for image acquisition of farmed Nile crocodiles. Altitudes between 40m and 60m above ground level suited the studies requirements and minimized disturbance. A UAV-based body condition index for Nile crocodiles was then developed, offering a non-invasive alternative to traditional condition scoring methods. The body condition index (BCI) was calculated for each crocodile by measuring the relationship between total length and belly width (with the equation: BCI = BW/TL*10) derived from photogrammetrically processed orthophotos in GIS. The BCI values were then normalized to form a body condition score (BCS) with the equation: BCS = (BCI/1.27)*4 + 1. The BCS ranked crocodile body conditions from 1-5, where a score of 1 identified a crocodile that was comparatively thin or emaciated, while a score of 5 identified a crocodile that was relatively fat or obese in contrast to the other crocodiles assessed. A BCS of 3 was the most frequent across all crocodiles in the study, with few animals scoring a 1 or 5. The farm housing crocodiles with narrower abdominal girths had no BCS 5 occurrences, and the farm housing crocodiles with wider abdominal girths had no BCS 1 occurrences. This UAV-based body condition score could be applied to large wild or captive populations for a fast-paced health and welfare evaluation.

show abstract

Comparison of the Lipid Composition of Three Adipose Tissue Types of Male and Female Wild Nile Crocodiles (Crocodylus niloticus)

Cited by 7 publications

References 40 publications

Lipids of Amazon Caimans: A source of fatty acids

Lipids of Amazon Caimans: A source of fatty acids

Heavy metals in muscle tissue of healthy crocodiles from the Kruger National Park, South Africa

Remote body condition scoring of Nile crocodiles (Crocodylus niloticus) using uncrewed aerial vehicle derived morphometrics

Contact Info

Product

Resources

About