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

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1 st WorkshopXIII International Feed Technology SymposiumTHE EFFECT OF MINERAL ADSORBENTS ADDED TO DIETS,ON THE PRODUCTION PARAMETARS OF BROILERSVera Radović 2 , Dejan Karović 3 , Đorđe Okanović 1 , Slavko Filipović 1 , Jasmina Gubić 1 ,Tatjana Tasić 1 , Predrag Ikonić 11 Institute for food tehnology in Novi Sad, Novi Sad, Bulevar cara Lazara 1, Serbia2 Agriculture fakulty, Čačak, Serbia3 Elixir Agrodiskont d.o.o. Šabac, SerbiaABSTRACTThis study reveals the original results of an application of mineral adsorbent in feedingof broiler chickens. The goal of research was to determine if mineral adsorbents “Min-azel”and “Min-a-zel Plus” have an influence on the dressing of slaughtered chickencarcasses when added to broiler feed.The research included 400 broilers, breedCobb 500, divided into 4 groups, taking intoconsideration the level of added mineral adsorbent: control group K (100 chickens,without added mineral adsorbent, 0,0%); experimental group O-I (100 chickens, with0,5% Min-a-zel); experimental group O-II (100 chickens with 0,2% Min-a-zel Plus) andexperimental group O-III (100 chickens, with 0,3% Min-a-zel Plus). The feedingexperiment lasted 42 days.As yield of carcases is an important quality parameter, the influence of feed treatment onthis characteristic was followed. The research results indicate that chickens from O-Igroup had the best production results of chilled carcasses (%), O-III %, O-II % and Kgroup % (P) the worst. Differences in values between the groups that were analyzed arealso statistically significant.We can conclude that that the addition of mineral adsorbents into feed in broiler feedingresulted in better production results.Key words: broiler feeding, mineral adsorbents, yield, carcassesINTRODUCTIONModern poultry production is the fastest method of obtaining quality products of animalorigin for human consumption. Optimal and healthy food is essential in order to reachfull genetic potential, improvement of health and chicken productivity. Mycotoxinspresent a distinct problem in animal nutrition. There are various methods ofdecontamination of animal feed, and the use of mineral adsorbents as an inactivator ofmycotoxins has been mentioned more frequently in recent times.Mycotoxin adsorbents of mineral origin, based on natural zeolites with a high content ofclinoptilite can be effective agents for absorption of most of the toxic matter in animalfeed (Adamović et al., 2003).According to statements made by numerous authors, the application of zeolites as ameans of preventing mycotoxicosis in poultry, produces good results in experimental aswell as practical conditions (Radović and Bogosavljević-Bošković 2006).271
1 st WorkshopXIII International Feed Technology SymposiumAddition of zeolites in poultry feed contaminated with different mycotoxins effectivelyreduces and prevents pathomorphologic changes to target tissues. Also, there is asignificant reduction of residue in edible tissues of meat and eggs (Radović 2003,Sinovec et al., 2003). Furthermore, the application of zeolytes in the poultry feed haspositive effects on production results, diminishing the mortality, good health conditionsand improving the quality of meat and eggs (Radović et al. 2001).Zeolite minerals in inorganic form adsorb more polar mycotoxins such as aflatoxins andergot alkaloids and do not absorb vitamins, microelements and amino-acids, thus notleaving any residues in meat and eggs. Min-a-Zel is one of the products based on naturalzeolite with a well balanced relationship of interchangeable cations Ca / Na / K. Min-a-Zel Plus is another product developed by modifying the surface of zeolite using organiccations (Daković et al., 2001, Lemke et al., 1998, Tomašević-Čanović et al., 2003).The goal of this research was to compare the influence of different types and levels ofmineral adsorbents on the production and slaughtering characteristics of broiler feeding,and the criteria for determining this influence included: increase in body mass, healthstate and mortality of chickens, production index, dressing.MATERIAL AND METHODSOne day old chickens of breed COBB 500 were sampled as experimental material for theanalysis of production characteristics of chickens and the effect of mineral adsorbentszeoliteson them. In the experiment, chickens were held inside of the floor system andfed in groups, with a nutritional mixture that had the same raw material and chemicalcomposition (Table 1). The only difference was the type and level of added zeolite in thefeed.Table 1. Formulation of diet272Feed(%)GroupK O-I O-II O-III1.Corn 49.023 48.777 48.924 48.8752.Corn gluten 2.500 2.500 2.500 2.5003.Soybean meal (44%) 21.894 21.894 21.894 21.8944.Sunflower meal (33%) 10.000 10.000 10.000 10.0005.Yeast 50% 5.000 5.000 5.000 5.0006.Fish flour 3.000 3.000 3.000 3.0007.Limestone 1.604 1.604 1.604 1.6048.Monosodium phophate 1.003 1.003 1.003 1.0039.Salt 0.149 0.149 0.149 0.14910.Soy oil 5.328 5.328 5.328 5.32811.Premix broil 0.500 0.500 0.500 0.50012.Min-a-zel 0,5%13.Min-a-zel Plus 0,2% 0,3%
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Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS

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