Povezanost površine MLD-a i kvalitete trupova simentalske junadi i križanaca s holštajnom

master's thesis

• Title (english): Correlation between M. Longissimus dorsi area and carcass characteristics of Simmental and Simmental x Holstein young bulls
• Author: Erminio Gržinić
• Mentor: Miljenko Konjačić (mentor)
• Committee member: Miljenko Konjačić (predsjednik povjerenstva)
• Committee member: Danijel Karolyi (član povjerenstva)
• Committee member: Ante Ivanković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Animal Science and Technology); Zagreb
• Defense date and country: 2017-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj rada bio je utvrditi povezanost površine musculus longissimus dorsi (MLD) s osnovnim
klaoničkim pokazateljima te s odlikama kvalitete trupa na liniji klanja za mušku junad
križance mesnog simentalca i holštajna te čistokrvnu simentalsku junad. Istraživanje se
provelo na 23 trupa muške tovne junadi od kojih je bilo 11 simentalaca i 12 križanaca
simentalca i holštajna. Križanaci su imali veću završnu tjelesnu masu (615,91 kg) u odnosu na
simentalsku junad (580,09 kg), veću masu toplih i hladnih polovica, bolji bruto i neto dnevni
prirast. Utvrđena je pozitivna povezanost površine MLD-a s klasom kojom su ocjenjeni
trupovi simentalske junadi i križanca simentalca i holštajna (p<0,05) te s masom toplih i
hladnih polovica. Pozitivna korelacija zabilježena je između mase toplih i hladnih polovica sa
svim izmjerama buta (duljina, opseg, širina i dubina) uz visoke razine značajnosti (p<0,01).

Abstract (english)

The aim of this research is to determine correlation between m. longissimus dorsi and carcass
characteristics of the crossbred (Simmental x Holstein) and purebred (Simmental) young
bulls. The research included 23 male carcasses, 12 of which were crossbred and 11 were
purebred. Crossbred Simmental x Holstein had higher final body weight (615.91 kg) in regard
to purebred Simmental (580.09 kg), higher hot and cold carcass weight and higher daily gain.
Positive correlation was determined between MLD area and EUROP conformation score by
which were rated Simmental and crossbred Simmental x Holstein carcasses (p<0.05)
including hot and cold carcass weight. Furthermore, positive correlation was determined
between hot and cold carcasses with taken round measurements (length, radius, width and
depth).

• Keywords: junad; musculus longissimus dorsi; površina; klaonički pokazatelji
• Keywords (english): young bulls; musculus longissimus dorsi; area; slaughter characteristics
• Language: croatian
• URN:NBN: urn:nbn:hr:204:656624
• Study programme: Title: Production and Processing of Meat; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka proizvodnje i prerade mesa (magistar / magistra inženjer/inženjerka proizvodnje i prerade mesa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-11-29 09:06:52