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Journal of the South African Veterinary Association

On-line version ISSN 2224-9435
Print version ISSN 1019-9128


XIE, Zhaohui H.  and  GAN, Ping. Nucleolus-like bodies in the pineal gland of the adult yak (Bos grunniens). J. S. Afr. Vet. Assoc. [online]. 2013, vol.84, n.1, pp.00-00. ISSN 2224-9435.

The pineal glands of adult yak were studied electron microscopically. Nucleolus-like bodies (NLBs) were found mostly in the pinealocytes and the interstitial cells of the pineal glands of the yak. The NLBs were electron-dense, round or ovoid bodies with a diameter of 50 nm -500 nm. Two types of granules were identified as melanin. These may correspond to different stages of a progressive storage of melanin. Rough endoplasmic reticula with abundant ribosomes were observed. There was no correlation between the number of NLBs and the sex of the animals.

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