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

More documents

Recommendations

Info

1 st WorkshopXIII International Feed Technology SymposiumIn this experiment chickens were divided according to the group-control system, inaccordance with the scheme with a completely random distribution (100 chickens in thegroup): control (K), experimental I (O-I), experimental II (O-II) and experimental III (O-III). Different levels and types of zeolites that had the same raw material compositionwere added: K-0,0%; O-I=0.5% Min-a-zel; O-II=0.2% Min-a-zel Plus; O-III=0.3% Mina-zelPlus. During the experiment, chickens were not seperated into halves until themoment of slaughter.Zeoilte products (clinoptilites) under trade names "Min-a-zel" and "Min-a-zel Plus" wereused in the experiment which are produced at the Institute for technology of nuclear andother mineral raw materials in Belgrade.During feeding the following parameters were followed: health state and mortality.Broiler feeding lasted for 42 days.When the feeding of broilers was completed, the mass of 8 live chickens from eachgroup as well as the mass of chilled carcasses after slaughtering were measured.Measurements were carried out using electrical scale with the accuracy of ± 0.1 g. Theyield was calculated based on the results that were produced.Analyses were performed at the Institute for food technologies in Novi Sad.In order to ensure the results are interpreted correctly, the given data were statisticallyanalyzed by calculating: arithmetic mean ( X ) and standard deviation (Sd)(Hadživuković, 1991).RESULTS AND DISCUSSIONAverage body mass of broilers breed Cobb 500 in groups, mortality of chickens duringfeeding, average mass of chilled carcasses (yield) are shown in Table 2.Table 2. Yields of chickens carcases form control and experimentale groupGroupMortality,pcs.K 7O-I 3O-II 3O-III 2SexWeight of alivechicken,gMass of chiledcarecass,gYield,M 1754.5 ± 42.75 1265.0 ± 31.36 72.1 ± 1.27F 1649.0 ± 58.35 1176.3 ± 34.49 71.3 ± 0.72M 2179.8 ± 57.48 1570.0 ± 41.23 72.0 ± 0.78F 2086.3 ± 21.76 1510.0 ± 33.17 72.4 ± 1.90M 1874.8 ± 7.63 1358.8 ± 34.49 72.5 ± 2.12F 1836.0 ± 20.54 1303.8 ± 10.31 71.0 ± 0.81M 1976.5 ± 38.80 1428.8 ± 56.48 72.3 ± 1.77F 1899.3 ± 9.07 1371.3 ± 25.94 72.2 ± 1.26%273
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). and lowest in experimental group with added 0.3% of Min-a-zel plus O-III (2chickens). while 3 chickens died in each of experimental O-I (0.5% Min-a-zel) and O-II(0.2% Min-a-zel plus) groups.Upon completion of the feeding period. that is 42 days. the chickens from experimentalgroup O-I (M-2179.8 g and F-2086.3 g) which were given 0.5% of Min-a-zel reachedthe largest average body mass. The mass of 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 of the mass in chickens from O-II group (0.2% Min-a-zel plus) amounted to1874.8 g for males and 1836.0 g for females. Chickens from the control group weighedthe least. where the mass of males and females equaled 1754.5 g and 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 and experimental groups hadhigher mass values than female chickens.During the experiment. the average total mass of chilled carcasses was also established.considering that it is an essential piece of data when determining the value of the chilledcarcasses.The largest total mass of chilled carcasses was confirmed in chickens from experimentalgroup O-I (M-1570.0 g and F-1510.0 g). followed by: O-III (M-1428.8 g and F-1371.30g ); O-II (M-1358.8 g and F-1303.8 g) and K (M-1265.0 g and F - 1176.3 g). Also.chickens in the control group had the lowest mass value of chilled carcassesO-II (F) group had the lowest carcass yield value while the highest value of thisparameter of 72.50 was identified from the same group in males. Yields which weredetermined in control and experimental groups I and III had aproximate values in theabove-mentioned interval. From the aforesaid results it can be concluded that deviationsin values of the yields from the groups are not high. despite differences in mass of livechickens and value of this indicator in chilled chicken carcasses.Taking into consideration the research results and the data from Table 2 that werepresented it can be concluded that the yield from chilled carcasses largely depends on thebody mass of 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 of broilers which were given feed with addedmineral adsorbents. the following conclusions can be drawn:1. Addition of 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
Page 2 and 3:
1 st WorkshopXIII International Fee
Page 4 and 5:
Page 6 and 7:
Page 8 and 9:
Page 10 and 11:
Page 12 and 13:
Page 14 and 15:
Page 16 and 17:
Page 18 and 19:
Page 20 and 21:
Page 22 and 23:
Page 24 and 25:
Page 26 and 27:
Page 28 and 29:
Digestibility (%)1 st WorkshopXIII
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
Page 54 and 55:
Page 56 and 57:
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Starch disappearance (%)1 st Worksh
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 83 and 84:
Page 85 and 86:
Page 87:
Page 90 and 91:
Page 92 and 93:
Page 94:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
X Axis Title1 st WorkshopXIII Inter
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
dehulledhulledFusarium spp.Alternar
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Ash content, %1 st WorkshopXIII Int
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204:
Page 207 and 208:
Page 209 and 210:
conversion of food (kg)1 st Worksho
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225: 1 st WorkshopXIII International Fee
Page 240: 1 st WorkshopXIII International Fee
Page 265 and 266: production of fat correctedmilk 3,5
Page 273: 1 st WorkshopXIII International Fee
Page 323 and 324: kg feed/kg body weignt1 st Workshop
Page 325 and 326:
Page 327 and 328:
Page 329 and 330:
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Page 337 and 338:
Page 339 and 340:
Page 341 and 342:
Page 343 and 344:
Page 345:
show all

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

Create successful ePaper yourself

Delete template?

Save as template?