Učinci dodatka industrijske konoplje u krmnu smjesu na proizvodne pokazatelje i kakvoću mesa tovnih pilića

master's thesis

• Title (english): Influence of the addition of industrial hemp leaves on the production indicators and meat quality of broilers
• Author: Matija Stamičar
• Mentor: Ana Kaić (mentor)
• Committee member: Ana Kaić (predsjednik povjerenstva)
• Committee member: Zlatko Janječić (član povjerenstva)
• Committee member: Dalibor Bedeković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Animal Science and Technology); Zagreb
• Defense date and country: 2023-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj istraživanja bio je utvrditi proizvodne pokazatelje i fizikalna svojstva mesa tovnih pilića hranjenih krmnim smjesama s različitim udjelom lišća konoplje. Istraživanje je provedeno na 100 Ross muških pilića, podijeljenih u 4 pokusne skupine. Krmna smjesa K-0 nije sadržavala lišće konoplje, a skupine P-1, P-2 i P-3 su sadržavale udjele od 1, 2 i 3%. Svakog tjedna je provedeno kontrolno vaganje i određena konzumacija hrane i konverzija krmne smjese. U svrhu određivanja sposobnosti zadržavanja vode, vrijednosti pH i boje mesa iz svake skupine izuzeta su po 3 uzorka prsnog mišićja (m. pectoralis superficialis). Tjelesne mase po skupinama iznosile su 2979,12 (K-0), 2626,57 (K-1), 2429,16 (K-2) i 2630,88 (K-3) g. Pri tome su mase skupina P-1, P-2 i P-3 bile su statistički značajno niže od K-0 (p<0,05). Na kraju istraživanja b* pokazatelj boje P-1 skupine bio je statistički značajno veći od ostalih. U ostalim fizikalnim pokazateljima kakvoće mesa nisu utvrđene statistički značajne razlike.

Abstract (english)

The aim of the research was to determine the effect of dietary supplementation of the industrial hemp leaves on production indicators and physical characteristic of broiler chicken meat. The research was conducted on 100 Ross male chickens, divided into 4 experimental groups. Group K-0 did not contain hemp leaves, and groups P-1, P-2 and P-3 were supplemented with 1, 2 and 3% of industrial hemp leaves. Control weighing was carried out every week and food consumption and feed conversion were determined. Physical properties of chicken meat (water-holding capacity, pH value, color) were determined on the 3 pectoral muscle samples (m. pectoralis superficialis) per group. Body weight of K-O group (2979,12 g) was significantly greater than K-1 (2626,57 g), K-2 (2429,16) i K-3 (2630,88 g). The b* color indicator of the P-1 group was significantly higher than in the other groups. No statistically significant differences were found between other investigated physical properties of broiler chicken meat.

• Keywords: konoplja (Cannabis sativa L.); proizvodni pokazatelji; tovni pilići; fizikalna svojstva mesa
• Keywords (english): hemp (Cannabis sativa L.); production indicators; broilers; physical properties of meat
• Language: croatian
• URN:NBN: urn:nbn:hr:204:237755
• 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: 2023-11-07 11:24:01