Odlike rasta, kakvoće trupova i mesa simentalske teladi u ekološkom uzgoju

master's thesis

• Title (english): Growth characteristics, carcass and meat quality of Simmental calves in organic farming
• Author: Milan Obradović
• Mentor: Ante Ivanković (mentor)
• Committee member: Ante Ivanković (predsjednik povjerenstva)
• Committee member: Miljenko Konjačić (član povjerenstva)
• Committee member: Nikolina Kelava Ugarković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Animal Science and Technology); Zagreb
• Defense date and country: 2023-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Ekološki uzgoj goveda je normiran, posebice po pitanju hranidbe, smještaja i njege. U pogledu krepkih krmiva skromnija hranidba i ekstenzivna narav ovog uzgojnog sustava utječe na sporiju dinamiku rasta goveda, specifičnu kakvoću trupa i mesa, poglavito u usporedbi s konvencionalnim sustavima proizvodnje. Ciljevi rada su istražiti odlike rasta, kakvoće trupova i mesa simentalske teladi u ekološkom uzgoju. Istraživanje je provedeno na simentalskoj teladi iz ekološkog uzgoja s područja Sisačko-Moslavačke županije životne dobi od 5 do 6 mjeseci. Boja, pH i kapaoni gubitak mjereni su na uzorku m. longissimus dorsi uzetom u razini 9. ili 10. rebra mjernim uređajem Minolta, ubodnim pH metrom Mettler Toledo i preciznom mjernom vagom. Iz nacionalnog sustava kontrole na liniji klanja prikupljeni su podatci o simentalskoj teladi OPG-a Džakula zaklanoj u 2022. godini. Prosječna masa toplih polovica iznosila je 100,5 kg a neto dnevni prirast iznosio je 598 g/dan. Randman teladi iznosio je 54,6%. Vrijednosti pH24h i boje mesa (46,15; 22,37; 6,58) su povoljne. Odnosi masa primarnih rasjeka prednjih i stražnjih četvrti su 2:1. Provedeno istraživanje ukazuje na povoljne odlike kakvoće trupova i mesa simentalske teladi iz ekološkog uzgoja.

Abstract (english)

Organic breeding of cattle is standardized, especially in terms of feeding, accommodation and care. In terms of forages, the more modest feeding and extensive nature of this breeding system affects the slower growth dynamics of cattle, the specific quality of the carcass and meat, especially compared to conventional production systems. The aim of this study is to investigate the characteristics of growth, carcass and meat quality of Simmental calves in organic farming. The research was carried out on Simmental calves from organic breeding from the area of Sisak-Moslovak county, aged 5 to 6 months. Color, pH and drip loss were measured on a sample of the longissimus dorsi muscle taken at the level of the 9th or 10th rib with a Minolta measuring device, a stabbing pH meter of the Mettler Toledo brand and a precise measuring scale. Data on Simmental calves of OPG Džakula slaughtered in 2022 was collected from the national control system on slaughter line. The average hot carcass weight was 100,5 kg and the net daily gain was 598g/day. Calf yield was 54.6%. Values of pH24h and meat color (46.15; 22.37; 6.58) are favorable. The ratios of the masses of the primary sections of the front and rear quarters are 2:1. The conducted research points to the favorable quality characteristics of the carcasses and meat of Simmental calves from organic farming.

• Keywords: simentalac; ekološki uzgoj; odlike trupa; kakvoća mesa
• Keywords (english): simmental; organic farming; carcass characteristics; meat quality
• Language: croatian
• URN:NBN: urn:nbn:hr:204:941971
• Study programme: Title: Organic Agriculture with Agrotourism; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma (magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-07-20 08:24:07