February 2005

GOAL : The objective is to evaluate the performance of broilers

from 1 to 42 days of age, treated with

- avilamycin - Bio-Mos- BIOLASE (DOXAL)

when fed diets made with corn of different nutritional qualities.

BIOLASE

 

MATERIAL AND METHODS:

• 920 Ross chicks• Period - 1 to 42 days old• Completely randomized design• 12 treatments x 8 repetitions x 20 broilers/unit Table 01 – Test 1 – Test groupsTreatment Normal Quality Corn Treatment Low Quality Corn

1 Blank Feed (BF) 2 BF + Avilamycin 3 BF + BIOLASE(.5 kg/ton.) 4 BF + BIOLASE (1 kg/ton.) 5 BF + BIOLASE (2 kg/ton.) 6 BF + BioMos (2 kg/ton.)   BIOLASE is a registered Trademark of Doxal Italia spa – ItalyBioMos is a registered Trademark of Alltech Inc - USA

7 Blank Feed (BF) 8 BF + Avilamycin 9 BF + BIOLASE (.5 kg/ton.)10 BF + BIOLASE (1 kg/ton.)11 BF + BIOLASE (2 kg/ton.)12 BF + BioMos (2 kg/ton.)

YIELD DATA (1-21 and 22-42 days):Table 02– Yield of 1 to 21 days old males chicks.

  Weight Gain, g Feed Intake,g Feed Conversion, g/g

Treatment Normal Quality Corn

Low QualityCorn

Average

 NormalQuality Corn

Low QualityCorn 

Average

 NormalQuality Corn

Low QualityCorn 

Average

Blank Feed 705b 685b 695b 1165 1161 1163 1.653b 1.697b 1.675bBF+Avila 744a 718a 731a 1155 1158 1157 1.554a 1.613a 1.584aBF+BIOLASE

500 g/t 737a 722a 729a 1147 1159 1153 1.557a 1.606a 1.582aBF+ BIOLASE

1kg/t 725a 710a 709a 1145 1156 1151 1.580a 1.629a 1.605aBF+ BIOLASE

2kg/t 727ab 690ab 717ab 1149 1137 1143 1.580a 1.650a 1.615aBF+ BioMos

2kg/t 743a 718a 730a 1157 1156 1157 1.557a 1.612a 1.585aCorn average 730A 707B 1153 1155 1.580A 1.634BCV (%) 3.60 2.81 2.61 

Table 03– Yield of 22 to 42 days old males chicks.

Blank Feed 1715b 1692b 1703b 3377 3479 3428 1.970 2.057 2.014BF + Avila 1768a 1731a 1750a 3452 3455 3454 1.952 1.997 1.975BF + BIOLASE 500 g/t 1764a 1751a 1758a 3449 3488 3469 1.955 1.993 1.974BF + BIOLASE 1kg/t 1749ab 1722ab 1736ab 3424 3467 3446 1.958 2.013 1.986BF + BIOLASE 2kg/t 1743ab 1715ab 1729ab 3415 3451 3433 1.959 2.014 1.987BF + BioMos 2kg/t 1766a 1743a 1754a 3451 3479 3465 1.955 1.998 1.977Corn average 1751A 1726B 428B 3470A 1.958A 2.012BCV (%) 2.35 2.06 2.40  

  Weight Gain, g Feed Intake,g Feed Conversion, g/g

Treatment Normal Quality Corn

Low QualityCorn

Average  

NormalQuality Corn

Low QualityCorn 

Average  

NormalQuality Corn

Low QualityCorn 

Average

YIELD DATA (1-42 days):Table 04– Yield of 1 to 42 days old males chicks.

Blank Feed 2420c 2377c 2398c 4543 4640 4592 1.877b 1.953b 1.915b

BF+Avila 2512a 2499a 2480a 4607 4613 4610 1.834a 1.884a 1.859aBF+BIOLASE 500 g/t 2501a 2473a 2487a 4596 4648 4622 1.838a 1.879a 1.859a BF+BIOLASE 1kg/t 2474ab 2432ab 2453ab 4569 4623 4596 1.847a 1.901a 1.874aBF+BIOLASE 2kg/t 2471b 2405b 2438b 4564 4588 4576 1.847a 1.908a 1.878aBF+ BioMos2kg/t 2509a 2461a 2485a 4608 4635 4622 1.837a 1.884a 1.860Corn average 2481A 2433B 4581B 4624A 1.847A 1.901BCV (%) 1.57 1.74 1.74

  Weight Gain, g Feed Intake,g Feed Conversion, g/g

Treatment Normal Quality Corn

Low QualityCorn

Average  

NormalQuality Corn

Low QualityCorn 

Average  

NormalQuality Corn

Low QualityCorn 

Average

WEIGHT GAIN, g (1-21 days):  

•NORMAL QUALITY CORN-During the period of 1 to 21 days old, the chicks that received additives in their ration, presented higher weight gain when compared to basal feed (P<0.05). Among the treatments containing BIOLASE, the best results of weight gain were obtained with 500 g/ton. of product.

 • LOW QUALITY CORN-Using low quality corn, there was an improvement on weight gain with the inclusion of pre-biotics and avilamycin, and the treatments containing 0.5 kg of BIOLASE (722g), avilamycin (718g), and 2 kg Bio-Mos (718g) stood out as the best results.  

FEED CONVERSION (1-21 days):  

•NORMAL QUALITY CORN

- The usage of additives improved feed conversion (P<0.05) and the treatments containing BIOLASE 0.5kg (1.557), BioMos 2 kg (1.557) and avilamycin (1.554) were the best results.

 

• LOW QUALITY CORN

- In this case the improvement on feed conversion was even more important. The best result among all was found with BIOLASE 0.5 kg.

WEIGHT GAIN, g (1-42 days):  

•NORMAL QUALITY CORN-Using additives improved the weight gain (p<0.05), and the best performance was obtained with BIOLASE 0.5 kg, BioMos 2 kg and avilamycin.

 • LOW QUALITY CORN-As with normal quality corn, the weight gain was higher when additives were used (p<0.05) and the best results were achieved when using BIOLASE 0.5 kg, BioMos 2 kg and avilamycin. 

FEED CONVERSION (1-42 days):

 •NORMAL QUALITY CORN & LOW QUALITY CORN-Feed conversion was better when additives were used (p<0.05). The best results were achieved when using BIOLASE 0.5 kg, avilamycin and BioMos 2 kg. 

YIELD FACTOR (1-42 days): (YF=DAWG x livability x alimentary efficiency x 100) DAWG= daily average weight gain, Livability = 100/mortality , Alimentary Efficiency = 1/ feed conversion Table 05 – Yield factor of broilers, 1-42 days old.Yield Factor

TreatmentNormal Quality

CornLow Quality

CornAverage

Blank Feed (BF) 289c 273c 281cBF + Avilamicine 305a 290a 297aBF + BIOLASE (.5kg/t) 303a 295a 299aBF + BIOLASE (1kg/t) 300ab 285ab 293abBF + BIOLASE (2kg/t) 298b 281b 289bBF + BioMos (2kg/t) 300a 293a 296aAverage 299A 286BCV(%) 2,74

YIELD FACTOR (1-42 days): 

•NORMAL QUALITY CORN-The yield factor increased (p<0,05) on broilers which received diets containing additives. The best performances were obtained with usage of BIOLASE 500 g, BioMos 2 kg and avilamycin. •LOW QUALITY CORN-In this case, the results for YF was even sharper. Once again the best results were obtained using BIOLASE 500 g, BioMos 2 kg and avilamycin.

CONCLUSIONS 

• The usage of additives on broiler feeds improved the performance parameters, such as weight gain and feed conversion when compared to control treatment.

• The treatment containing BIOLASE 0.5 kg, BioMos 2 kg and avilamycin presented the lowest feed conversion rate (p<0.05).

• The treatment containing BIOLASE 0.5 kg, BioMos 2 kg and avilamycin presented the best yield factor (p<0.05).

• The right inclusion rate for BIOLASE is 0.5 kg per ton of feed, under present test conditions.