Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS

1 st WorkshopXIII International Feed Technology SymposiumTable 1. Some characteristics of eggs produced in different housing systemsCharacteristicsŢigić et al.1967[33]Pavlovskiet al.1981[22]Pavlovski1982[16]PavlovskiandMašić1986[23]Mašić andPavlovski1994[12]Pavlovski et al.2001[21]Pavlovskiet al.2002a[19]I II I II I II I II I II III I IV III I IIEgg mass, g 63.0 62.8 57.7 59.4 66.3 59.6 64.4 57.5 63.1 62.2 61.3 63.7 62.5 61.2 67.7 60.7Shape index, % 75.1 74.1 73.6 74.6 75.4 74.1 75.8 73.2 76.2 76.3 75.5 76.0 73.5Shell colour, points 2.51 2.94 3.69 3.58 3.30 3.00 3.16 3.02 3.72 3.49 3.41 3.61 3.45 3.36 3.55 3.41Albumen height,51.3 59.9 49.9 56.2 47.3 56.4 72.6 77.6 70.0 64.1 66.1 77.2 77.1 77.3 72.6 77.60.1mmHaugh Unit 66.6 73.9 66.7 71.6 60.6 70.2 82.6 88.1 79.8 75.9 78.2 85.5 84.8 87.2 82.5 88.0Yolk colour, Roche 4.83 7.00 * 9.44 13.6 8.80 11.0 9.74 12.8 9.84 9.98 10.2 10.5 10.3 11.2 9.74 12.6Shell thickness,31.9 34.6 36.0 34.3 35.1 32.7 35.5 35.8 36.7 37.2 37.7 36.2 35.1 32.70,1mmI – cage , II – free-range, III – deep litter, IV – aviary* - intensity of yolk colour, graded 1-12, was determined by comparosion with the colour of varyingcontrentracion of potassium bichromate solution (0.5-20 mg/ml water in tubes R 5 x 16 mm).Marketing strategy and consumer attitudes - It is well known that in every productionchain, the most important link is the final one – consumer. For each production, evenproduction of table eggs, it is very important to know why consumers are purchasing specificproduct and what preferences consumers have in relation to that product. It is paradox thatpoultry production in many countries of the world, even in Serbia, over the period of severaldecades, has developed suddenly and become industrialized – revolution in livestockproduction, but almost no attention was directed to researches of consumer demands andmarketing strategies. Even in countries with developed poultry production, first among fewresearches of the consumer relations to poultry products appeared in late sixties. However, ineighties these researches became very up-to-date and intensive, today on poultry scientificmeetings researches of consumer attitudes and marketing strategies are given outstandingposition. Favourable circumstance is that in our country considerable attention was directedto researches of the consumer relation to poultry products. Numerous researches directed invarious directions have been carried out [15, 24, 25, 20]. It is interesting to mention that inyear 1981 70,6% of questioned consumers thought that battery system was acceptable asproduction method, and one decade later this percentage was reduced to 54,6%, and twodecades later to 35,6%. During this period the percentage of consumers in favour of banningof cage system almost doubled from 6,4% to 10,3% and 13,2%, respectively. In mentionedresearch years number of consumers which were willing to pay higher price by 10% for eggsof guaranteed and controlled quality or from free-range system increased from 46% to 63%and 71,5%. Obviously, number of consumers adherent to the free-range and banning ofbattery system on Belgrade market increased considerably which is in accordance withsimilar trends and new directives of EU.129