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Neželene spremembe prsne mišičnine pri pitovnih piščancih
ID Pečjak Pal, Manca (Author), ID Rezar, Vida (Author)

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Abstract
V svetovnem merilu perutninsko meso predstavlja cenovno dostopen in kakovosten vir beljakovin, zato se je v zadnjih desetletjih povečala njegova prireja. Slednje smo dosegli z intenzivno selekcijo pitovnih piščancev na hitro rast, učinkovitejše izkoriščanje krme, povečan delež prsne mišičnine in manjši delež trebušne maščobe. Na drugi strani so tako intenzivna selekcija in zahteve po večji prireji, kot tudi nekateri zunanji stresni dejavniki, ki vključujejo neželene spremembe v okolju, prehranskem režimu, tehnologiji reje in nepravilne postopke ravnanja z živalmi pred zakolom, povzročili večjo dovzetnost živali za oksidativni stres, ki poslabšuje senzorične in tehnološke lastnosti perutninskega mesa. Posledice hitrega povečevanja prsne mišičnine pri pitovnih piščancih in intenzivne tehnologije reje se kažejo v naraščajočem trendu pojavnosti različnih neželenih sprememb piščančjega mesa oziroma miopatij. Med najpogostejše miopatije spadajo miopatija globoke prsne mišice, bledo, mehko in vodeno meso, bela progavost prsne mišice, olesenelost prsne mišičnine ter špagetasto meso, ki prizadenejo predvsem veliko prsno mišico in poslabšujejo njene senzorične in tehnološke lastnosti. Prav tako omenjene spremembe prsne mišičnine poslabšujejo kakovost in prehransko vrednost mesa ter vplivajo na sprejemljivost mesa za potrošnike in nedvomno povzročajo ekonomske izgube v živilsko-predelovalni industriji.

Language:Slovenian
Keywords:perutnina, pitovni piščanci, prehrana živali, prsno maščobno tkivo, kakovost mesa, miopatije
Work type:Article
Typology:1.02 - Review Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:12 str.
Numbering:Letn. 119, št. 1
PID:20.500.12556/RUL-147077 This link opens in a new window
UDC:636.5:637.5
ISSN on article:1854-1941
DOI:10.14720/aas.2023.119.1.2739 This link opens in a new window
COBISS.SI-ID:150726403 This link opens in a new window
Publication date in RUL:22.06.2023
Views:676
Downloads:45
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Record is a part of a journal

Title:Acta agriculturae Slovenica
Publisher:Biotehniška fakulteta, Oddelek za agronomijo in Oddelek za zootehniko, Biotehniška fakulteta, Oddelek za agronomijo in Oddelek za zootehniko, Univerza v Ljubljani, Biotehniška fakulteta, Založba Univerze v Ljubljani
ISSN:1854-1941
COBISS.SI-ID:219581184 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:English
Title:Breast muscle abnormalities in broiler chickens
Abstract:
In recent decades, global production of poultry meat has increased due to its affordable prices and good nutritional value. The latter has been achieved by intensive selection of broilers for increased growth rate, feed efficiency, breast yield and reduced abdominal fat deposition. On the other hand, intensive selection and increasing demand for poultry meat, as well as some environmental stressors, such as changes in environmental temperature, feeding regime, breeding technology, and improper handling procedures before slaughter, lead to increased susceptibility of animals to oxidative stress, resulting in poorer sensory and technological characteristics of chicken meat. As a result of intensive broiler production and the increase in breast muscle, various breast muscle abnormalities or myopathies have been observed. The most common ones include deep pectoral myopathy, pale, soft and exudative like meat, white striping, wooden-breast and spaghetti meat, which mainly affect the pectoralis major breast muscle and negatively influence the sensory and technological characteristics of breast meat. The muscle abnormalities have a detrimental effect on quality and nutritional value of meat, affect consumer compromise consumers acceptance, and cause economic losses in the meat processing industry.

Keywords:poultry, broilers, animal nutrition, breast muscle, meat quality, myopathies

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