Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
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1 st WorkshopXIII International Feed Technology SymposiumFrom the results shown in Table 2. it can be concluded that mortality was the highest inchicken groups in which mycotoxin adsorbents were not added to chicken feed (7chickens). <strong>and</strong> lowest in experimental group with added 0.3% <strong>of</strong> Min-a-zel plus O-III (2chickens). while 3 chickens died in each <strong>of</strong> experimental O-I (0.5% Min-a-zel) <strong>and</strong> O-II(0.2% Min-a-zel plus) groups.Upon completion <strong>of</strong> the feeding period. that is 42 days. the chickens from experimentalgroup O-I (M-2179.8 g <strong>and</strong> F-2086.3 g) which were given 0.5% <strong>of</strong> Min-a-zel reachedthe largest average body mass. The mass <strong>of</strong> chickens from experimental O-III group(0.3% Min-a-zel plus) varied from 1976.5 g in males to 1899.3 g in females. The meanvalue <strong>of</strong> the mass in chickens from O-II group (0.2% Min-a-zel plus) amounted to1874.8 g for males <strong>and</strong> 1836.0 g for females. Chickens from the control group weighedthe least. where the mass <strong>of</strong> males <strong>and</strong> females equaled 1754.5 g <strong>and</strong> 1649.0 grespectively.From the results shown in Table 2. it can be concluded that chickens from the controlgroup (without added mycotoxin adsorbents). which received feed without addedmycotoxin adsorbents had the lowest body mass before slaughtering.The same Table also shows that male chickens in control <strong>and</strong> experimental groups hadhigher mass values than female chickens.During the experiment. the average total mass <strong>of</strong> chilled carcasses was also established.considering that it is an essential piece <strong>of</strong> data when determining the value <strong>of</strong> the chilledcarcasses.The largest total mass <strong>of</strong> chilled carcasses was confirmed in chickens from experimentalgroup O-I (M-1570.0 g <strong>and</strong> F-1510.0 g). followed by: O-III (M-1428.8 g <strong>and</strong> F-1371.30g ); O-II (M-1358.8 g <strong>and</strong> F-1303.8 g) <strong>and</strong> K (M-1265.0 g <strong>and</strong> F - 1176.3 g). Also.chickens in the control group had the lowest mass value <strong>of</strong> chilled carcassesO-II (F) group had the lowest carcass yield value while the highest value <strong>of</strong> thisparameter <strong>of</strong> 72.50 was identified from the same group in males. Yields which weredetermined in control <strong>and</strong> experimental groups I <strong>and</strong> III had aproximate values in theabove-mentioned interval. From the aforesaid results it can be concluded that deviationsin values <strong>of</strong> the yields from the groups are not high. despite differences in mass <strong>of</strong> livechickens <strong>and</strong> value <strong>of</strong> this indicator in chilled chicken carcasses.Taking into consideration the research results <strong>and</strong> the data from Table 2 that werepresented it can be concluded that the yield from chilled carcasses largely depends on thebody mass <strong>of</strong> live chickens. This conclusion is in agreement with the data found byRadović et al.. 2003. Sinovec et al.. 2003.CONCLUSIONBased on data obtained during feeding <strong>of</strong> broilers which were given feed with addedmineral adsorbents. the following conclusions can be drawn:1. Addition <strong>of</strong> mineral adsorbents in feed during broiler feeding resulted in betterproduction results.2. The highest mortality rate was recorded in the group in which mycotoxin adsorbentwas not added.274
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