Utjecaj dodatka bučine pogače u krmnu smjesu na proizvodne rezultate brojlerskih pilića

master's thesis

• Title (english): Effect of pumpkin seed meal in broiler feed on production results of broiler chickens
• Author: Jelena Babić-Alagić
• Mentor: Zlatko Janječić (mentor)
• Committee member: Zlatko Janječić (predsjednik povjerenstva)
• Committee member: Jasna Pintar (član povjerenstva)
• Committee member: Ivica Kos (član povjerenstva)
• Committee member: Dalibor Bedeković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Animal Nutrition); Zagreb
• Defense date and country: 2017-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj ovog istraživanja bio je utvrditi utjecaj dodatka bučine pogače na proizvodne rezultate brojlerskih pilića. U istraživanju je korišteno 360 pilića (Ross 308) koji su slučajnim odabirom raspoređeni u 12 skupina (4 kontrolne i 8 pokusnih). Pilići kontrolnog hranidbenog tretmana (K) hranjeni su komercijalnim krmnim smjesama dok je pilićima iz pokusnih hranidbenih tretmana (P-5 i P-10) dio sojine sačme zamijenjen s bučinom pogačom. Tijekom tova praćeno je kretanje tjelesne mase, konzumacija i mortalitet. Nakon 42 dana tova brojleri su klaonički obrađeni te su provedena mjerenja u svrhu utvrđivanja randmana i udjela osnovnih dijelova u trupu. Prosječne vrijednosti tjelesnih masa 42. dana bile su statistički značajno različite između svih skupina međusobno s time da je najveća masa ostvarena u kontrolnoj, a najmanja u pokusnoj skupini P 10. Ukupna konverzija krmne smjese bila je najveća u pokusnoj skupini P-10, ali bez statistički značajne razlike. Nešto viši randman utvrđen je u pokusnim skupinama P-5 i P-10 no, statistički značajna razlika utvrđena je samo između kontrolne skupine i pokusne skupine P-10. Na osnovi dobivenih rezultata možemo zaključiti da je dodatak od 5 i 10 % bučine pogače u smjese za hranidbu brojlera imao značajan utjecaj na proizvodne rezultate. No, za konačnu ocjenu mogućnosti zamjene dijela sojine sačme bučinom pogačom potrebno je istražiti utjecaj dodatka pogače na fizikalno kemijska svojstva mesa te na ekonomski rezultat tova.

Abstract (english)

The aim of this study was to determine the effect of the addition of pumpkin cake to the results of broiler chickens production. 360 chickens (Ross 308) were used in the study, randomly selected in 12 groups (4 controls and 8 trials). Chickens of control nutrition (K) were fed with commercial feed mixtures, while chickens from experimental feeding groups (P-5 and P-10) had part of the soybean meal replaced with pumpkin cake. Changes in body weight, consumption and mortality were monitored during the experimental feeding period. After 42 days, the broilers were slaughtered and measurements were performed to determine the feed conversion rate and the proportion of the basic parts in the carcass ratio. The mean body weight values of day 42 were statistically significantly different between all groups, with the largest weight being obtained in the control and the lowest in the P-10 test group. The total feed conversion rate of the feed mixture was the highest in the P-10, but without statistically significant difference. A somewhat higher feed conversion rate was established in the P-5 and P-10 trial but a statistically significant difference was found only between the control group and the P-10 experimental group. On the basis of the obtained results we can conclude that the addition of 5% and 10% pumpkin cake in the broiler feed mixture had a significant effect on the production results. However, for the final evaluation of the possibility of replacing part of the soybean meal, it is necessary to investigate the effect of the addition of pumpkin cake on the physicochemical properties of meat and on the economic results.

• Keywords: bučina pogača; konverzija; pilići; randman; tjelesna masa
• Keywords (english): pumpkin cake; broiler; body weight; feed conversion rate; carcass ratio
• Language: croatian
• URN:NBN: urn:nbn:hr:204:578811
• 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: Access restricted to students and staff of home institution
• Created on: 2017-12-01 13:24:55