Efficacy of Turval B0399 on the growth and conversion index of broiler chicken
(Trial conducted at the client's farm, M-Feed - Vojvodina, Serbia)
Ana Backović1, PhD; Mladen Savić2; Mauro Poian3
1. Post-doc at ICGEB, Trieste, Italy
2. Biologist / Microbiologist at M-Feed, Doo, Serbia
3. Statistician; Co Founder at Plus srl
Summary
The test was conducted at the experimental farm of M-Feed, Doo, on a total of 24180 broiler chicken. A study was conducted to evaluate the effect of supplemental yeast culture (Kluyveromyces marxianus fragilis B0399, commercially: Turval B0399) in broiler diets on weight gain and cumulative growth performance and finally the effect of the treatment on the economics of fattening and gross profit margin.
One-day-old Ross 308 chicks (n = 12090) were randomly assigned to 1 of 2 dietary treatments based on a commercial Starter Feed accompanied with 1.1 kg of yeast culture, suspended in 1000l of drinking water for 21st days of life, followed by the dietary switch to Grover Feed accompanied with 260gr of yeast culture, suspended in 1000l of drinking water and this Grower phase treatment lasted for additional 14 days.
Other half of the chicks (n = 12090) was randomly assigned to the control treatment. The control sample received the same commercial feed compound and drinking water without yeast additive. Chicks were fed according to the technological standards and the feed assigned to each compartment was registered every day. Growth performance was monitored in the following way: 200 chicks were randomly taken for weight measuring from both study groups on the day one, and the following measures were taken in the same way every two days during the first week of the treatment and then every day till the end of the trial. The final individual weight was 8.5 % higher in the yeast - treated group comparing to the control group and the average feed conversion index was significantly reduced by 8.6%(P=0.0491) comparing to the control group. With the supplementation with Turval B0399 feed was better converted to growth and on the whole the results clearly demonstrate that the additive Turval B0399 at the suggested dosage improved growth performance of the broiler chicken.
In addition, group receiving the yeast additive showed mortality decreased by 4.7 % at the end of the trial.