Gomez De Ayala, Diego (2006) Il sistema calpaina/calpastatina in 3 muscoli dell’arto pelvico di struzzo African Black. Studio istochimico, immunoistochimico e morfometrico. [Tesi di dottorato] (Unpublished)

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Item Type: Tesi di dottorato
Language: Italiano
Title: Il sistema calpaina/calpastatina in 3 muscoli dell’arto pelvico di struzzo African Black. Studio istochimico, immunoistochimico e morfometrico
Creators:
CreatorsEmail
Gomez De Ayala, DiegoUNSPECIFIED
Date: 2006
Date Type: Publication
Number of Pages: 101
Institution: Università degli Studi di Napoli Federico II
Department: Scienze zootecniche e ispezione degli alimenti
PHD name: Produzione e sanità degli alimenti di origine animale
PHD cycle: 18
PHD Coordinator:
nameemail
Cortesi, MarialuisaUNSPECIFIED
Tutor:
nameemail
Crasto, AntonioUNSPECIFIED
Date: 2006
Number of Pages: 101
Uncontrolled Keywords: Istochemistry, Immunoistochemistry, Morfometry
MIUR S.S.D.: Area 07 - Scienze agrarie e veterinarie > VET/01 - Anatomia degli animali domestici
Date Deposited: 31 Jul 2008
Last Modified: 30 Apr 2014 19:24
URI: http://www.fedoa.unina.it/id/eprint/787

Abstract

In the present research a description of the pelvic limb musculature of ostrich (African Black) was given. Muscle tissues were obtained from three muscles namely: Gastrocnemius pars externa, Tibialis .cranialis caput tibiale, Tbialis cranialis caput femorale. Haematoxilin-eosin technique was used to verify the morphologic aspect of the tissues (fibers integrity). The histochemical results revealed the presence of three fibre types only in the gastrocnemus pars extena uscle : slow-twitch oxidative fibres (SO), fast-twitch oxidative glycolytic fibres (FOG) and fast-twitch glycolytic fibres (FG), while in the other muscles FG fibres were absent. The percentage distribution of fibres types showed a higher incidence of SO compared to FOG fibres in Tibialis cranialis caput tibiale and tibialis cranialis caput femorale. In the Gastrocnemius pars externa muscle the FG fibres outnumber the other fibres, followed by SO and FOG fibres.The results of the analysis of variance showed significant muscle x fibre interactions for every morphometric parameter evaluated. The immunohistochemical results showed the localization of calpain and calpastatin in the muscles object of study. These molecules are involved in the degradation of same myofibrillar proteins and therefore they are relevant factor for meat quality. The brief activity period of the calpain/calpastatin system could explain, in the ostrich, a shorter hanging period.

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