Hair Morphology of Striped Hyena Hyaena hyaena (Linnaeus, 1758)

Kamalakannan, Manokaran; De, Joy Krishna

doi:10.20546/ijcmas.2017.605.157

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Pre-treatment included washing hair samples with tap water followed by acetone treatment to remove exogenic impurities from the hair. The cleansed hair was then dried and used for further observation [20]. A total of thirty (n=30) hair samples from each species (150 hair for all five species) was used for morphometric analysis.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Microscopic and macroscopic characteristics of wild mammalian hair was pioneered by Hausman [6] and was later refined [8]. In India, tricho-taxonomical research on various families of mammals was expansively carried out by Chakraborty and De [9][10][11], De et al [12][13][14][15], Sahajpal et al [4,16], Bahuguna [17] and in recent past decade by Kamalakannan et al [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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A Descriptive Study of Hair Morphology of Three Carnivore families (Canidae, Ursidae and Herpestidae)

Sivapushanam

Murugesan

Vasanthakumari

et al. 2022

AJRiZ

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Aim: To study the morphological characteristics of dorsal guard hair of five carnivoran species native to Tamil Nadu for the creation of an identification key for application in wildlife forensics. Study Design: The experiment was designed to observe the physical characters of each hair strand and measure widely used morphological parameters from native species of the state. The results were compared with previous findings to validate the differences and similarities with our study. Place and Duration of Study: Advanced Institute for Wildlife Conservation (AIWC), Tamil Nadu Forest Department, Vandalur, Chennai, Tamil Nadu, between August 2020 and September 2021. Methodology: Hair samples were collected for golden jackal, Indian fox, dhole, sloth bear and Indian grey mongoose. Hair characters such as scale pattern, scale distance and scale margin, medulla structure, cortex thickness, medulla thickness, medullary index and cross-sectional structure were observed. Results: The hair length of golden jackal, Indian fox, dhole, sloth bear and Indian grey mongoose were as follows 44.94 ± 2.24 mm, 29.70 ± 1.51 mm, 29.60 ± 0.97 mm, 83.83 ± 2.93 mm, 54.60 ± 2.03. The cuticular characters showed few variations compared to previous studies. The medullary structure was wide medulla with vacuoles for all three canid species while sloth bear has a narrow simple unbroken medulla and Indian grey mongoose had wide medulla with lattice. The medullary index for golden jackal, Indian fox, dhole, sloth bear and Indian grey mongoose were 0.73 ± 0.05 (S.D.), 0.77 ± 0.071 (S.D.), 0.66 ± 0.06 (S.D.), 0.18 ± 0.08 (S.D.) and 0.63 ± 0.05 (S.D.) respectively. Conclusion: The morphometric characters of hair showed variation in scale pattern, scale margin, scale distance and medullary index when compared to the previous studies. The research was successful in creating a taxonomic key for identifying the five mammalian species from their guard hair.

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Section: Sample Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Descriptive Study of Hair Morphology of Three Carnivore families (Canidae, Ursidae and Herpestidae)

Sivapushanam

Murugesan

Vasanthakumari

et al. 2022

AJRiZ

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The Effect of the Season, the Maintenance System and the Addition of Polyunsaturated Fatty Acids on Selected Biological and Physicochemical Features of Rabbit Fur

Roman

Wilk

Książek³

et al. 2022

Animals

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The aim of the study was to show the impact of environmental conditions and dietary supplementation with ethyl esters of linseed oil on the quality of the rabbit hair coat. The research was divided into 4 stages: laboratory (summer and winter) and outdoor (summer and winter). In each stage of the research, animals were divided into control and experimental groups. The animals were fed in accordance with the feeding standards of reproductive rabbits during the period of sexual dormancy. The rabbits from the experimental groups during the first two months were given an addition of ethyl linseed oil to the feed. In the experiment, linseed oil was cold-pressed directly in the laboratory. Three samples of hair were collected: before the study, after two months of treatment, and after two months from the end of supplementation. The hair coat biological properties, such as share of individual hair fractions (%), heat transfer index (HTI), hair diameter (μm), as well as physico-mechanical properties such as breaking force (N), breaking stress (kg/cm2) and elongation (%) were performed. Moreover, the histological structure of hair and histological hair evaluation were performed. The fatty acid profile was determined in the hair as well. The obtained results of the content of individual fatty acids were grouped into saturated fatty acids and unsaturated fatty acids. In addition, omega-3 and omega-6 were distinguished from the group of unsaturated acids. The environmental conditions have a major impact on the quality of the rabbit coat. The best results of hair thickness and their heat protection were obtained from animals kept outdoors. The studies did not show an influence of the administered preparation on the quality of the rabbit coat. The hair became thinner, but more flexible and tear-resistant. Administration of linseed oil ethyl esters had significant, beneficial changes in the fatty acid profile in hair and hair sebum were observed. There was a significant increase in omega-3 acids, and a significant decrease in the ratio of omega-6 to omega-3 acids.

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Hair Morphology of Striped Hyena Hyaena hyaena (Linnaeus, 1758)

Cited by 2 publications

References 3 publications

A Descriptive Study of Hair Morphology of Three Carnivore families (Canidae, Ursidae and Herpestidae)

A Descriptive Study of Hair Morphology of Three Carnivore families (Canidae, Ursidae and Herpestidae)

The Effect of the Season, the Maintenance System and the Addition of Polyunsaturated Fatty Acids on Selected Biological and Physicochemical Features of Rabbit Fur

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