SVIBOR - Project code: 4-05-076

MINISTRY OF SCIENCE AND TECHNOLOGY

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Project code: 4-05-076


FACTORS OF HIGH QUALITY CHICKEN AND PIG MEAT PRODUCTION


Main researcher: KRALIK, GORDANA (23200)



Assistants
Type of research: developmental
Duration from: 01/01/91. to 12/31/93.

Papers on project (total): 86
Institution name: Poljoprivredni fakultet, Osijek (79)
Department/Institute: Department of Livestock Production
Address: Trg Svetog Trojstva 3
City: 31000 - Osijek, Croatia
Communication
Phone: 385 (0) 31 124-333
Fax: 385 (0) 31 128-017

Summary: In this project the genetic and paragenetic factors in production of high quality chicken and pig meat have been researched. Influence of genotype, feeding and zootechny on performances of chicken and pigs. Feedstufs for poultry were also researched (determination of real metabolic energy) as well as additives in the diets for poultry. Researches of biological growth capacity of fattening chickens: Arbor Acres, Ross, Hybro and Avian K24 have been performed in mixed and separated fattening according to sex. Chicken feeding with higher concentration of nutrients in mixtures as well as addition of Polizymes and growth promotors have raisen significantly the gain in fattening and enhanced food conversion. Significant differences between genotypes and sex in physical-chemical and bioelectrical characteristics of chicken meat have been established. Meat quality was also tested for new lines of broilers such as Avian 34 and Avian 43. Nutritive value of chicken meat was researched from the aspects of content of protein, fat, water, ash, saturated and unsaturated fatty acids. An asymmetryc S-function as a growth curve has been applied. Modified logistic function was used. Phenotype expression researches of meatness of Large White, Swedish Landrace and Lines 1 and 3, Hypor as well as crossbreds have shown that selection of pigs on higher meat production provoked significant distribution of lean ad fat tissue in the main parts of carcasses. Correlation and regression coefficients between parameters of meat and carcass quality. Results have shown that this is a production of meat with very satisfactory quality. Disposal to stress and its determination in the populations of pigs was showed. Results of pig carcass (meatiness) evaluation on the basis of our own methods of research as well as according to German methods have been very significant. Results of the research on apportunities for livestock production development, especially poultry and pig production by application of new technological and zootechnological means are reported in the project.

Keywords: chicken, sex, fattened pig, stress, growth curve, gain, conversion, carcass quality, meat quality, physico-chemical properties, fatty acids, bioelectrical properties

Research goals: Researches are intended to find out new proceedings in rationalproduction of high quality chicken meat and pork.Thus,paragenetic factors (feeding, zootechnics) which have impact onthe more efficient explotation of production capacities at modernchichen and pig genotypes in our specfic conditions. The results of the researches should confirm the need for redirection of broiler fattening technology and selection of adequate genotypes in aim of enhanced quality chicken meat production and more efficient creation of primary production for specific processing. The results of pig meatness examinations should point out impact of genoptypes, and they are very useful for selection work, as wellas for making our regulations on evaluation of pig carcasses andtheir using values for slaughtering industry, and matching of these regulations with European.


COOPERATION - PROJECTS


  1. Name of project: 4-05-038 NASLJEĐIVANJE I MIJENJANJE ODNOSA SASTAVA TKIVA U SVINJA
    Name of institution: Agronomski fakultet, Sveučilište u Zagrebu
    City: 10000 - Zagreb, Croatia

  2. Name of project: 2-07-259 MJERENJE BIOLOŠKIH VELIČINA NOVIM IMPEDANCIJSKIM METODAMA
    Name of institution: Elektrotehnički fakultet, Sveučilište u Zagrebu
    City: 10000 - Zagreb, Croatia


COOPERATION - INSTITUTIONS


  1. Name of institution: Pannon Agrartudomanyi Egyetem Allattenyesztesi Kar
    Type of institution: University/Faculty
    Type of cooperation: Systematic exchange of experts
    City: 7401 - Kaposvar, Mađarska

  2. Name of institution: The University of Georgia, College of Agriculture, Animal and Dairy Science
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: 30602 - Athens, Georgia

  3. Name of institution: The University of Georgia, College of Agriculture, Animal and Diary Science
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: Rovinj, Hrvatska

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Last update: 10/17/95
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