1. your yeast supplier www.yeastbrazil.com INACTIVE DRIED YEAST (Saccharomyces cerevisiae)

2. your yeast supplier www.yeastbrazil.com INACTIVE DRIED YEAST Inactive Yeast is known for its prophylactic action, increasing the animal’s resistance to illness and improving performance, this activity is often referred as “Unidentified Growth Factors” – UGF. Due to its high palatability, Inactive Dried Yeast stimulates the feed intake. Inactive Yeast is a great protein source, with good amino acids balance and high levels of lysine and threonine and it is also the best source for natural occurring B vitamins.

3. your yeast supplier www.yeastbrazil.com ADVANTAGES OF YEAST USAGE Layers - Inactive Dried Yeast increases the production factor, improves egg shell quality and fertility. Broilers - Inactive Dried Yeast should be used mainly on initial phase (1 to 21 days old, or 1 to 10 days old), it decreases deleterious effects caused by stress factors such as high temperature, over population, mycotoxins contamination, etc.

4. your yeast supplier www.yeastbrazil.com INDICATION OF USE POULTRY Initial Phases 1.0% to 2.5% of total feed Other phases 0.5% to 2.5% of total feed

5. your yeast supplier www.yeastbrazil.com FIELD TRIALS INACTIVE DRIED YEAST

6. your yeast supplier www.yeastbrazil.com THE USAGE OF INACTIVE DRIED YEAST IN THE BROILER FEED. BUTOLO, J.E., BUTOLO, E.A.F., NOBRE, P.T., SERAFINI, F.V. EXPERIMENTAL DATAS: Local: Supremais Research Center Animals: 300 chickens (one day old) Periods: 1-21, 21-35, 35-42 and 1-42 days. Treatments: 0%, 2.5%, 5.0% and 7.5% of yeast inclusion. Experimental Period: 71 days

7. your yeast supplier www.yeastbrazil.com Broilers Weight Gain (g)

8. your yeast supplier www.yeastbrazil.com Broilers Feed Conversion

9. your yeast supplier www.yeastbrazil.com CONCLUSION The best performance were reached with inclusion rate of 2.5% of Inactive Dried Yeast. The broilers fed with 2.5% of Inactive Dried Yeast showed better (P>0.05) results of weight gain, feed intake and feed conversion in the total period than the others treatments. The evidences suggest low levels of Inactive Dried Yeast inclusion rate provided positive results to broilers performance.

10. your yeast supplier www.yeastbrazil.com STUDIES ABOUT HEN FEEDING WITH GROWING LEVELS OF INACTIVE DRIED YEAST (Saccharomyces cerevisiae). BOTELHO, F.G. A., BUTOLO, E.A.F., NOBRE, P.T.C., BUTOLO, J.E., LIMA, I.A.V., SERAFINI, F.V. EXPERIMENTAL DATAS: Local: Supremais Research Center Animals: 360 ISA Brown hens (18 weeks old) Treatments: 0%; 2.5%; 5.0% and 7.5% of yeast inclusion Experimental Period: 16 weeks (4cycles)

11. your yeast supplier www.yeastbrazil.com Table1. Average of hens productives parameters feeded with molasses yeast

12. your yeast supplier www.yeastbrazil.com DWG=daily weight gain; DFI=daily feed intake; FC(12 eggs)=feed conversion to twelve eggs; FC (egg mass)=feed conversion to mass of egg. Cycle1 – 20 to 23 weeks; Cycle2 – 24 to 27 weeks; Cycle3 – 28 to 31 weeks; Cycle4 – 32 to 35 weeks; Total – 20 to 35 weeks

13. your yeast supplier www.yeastbrazil.com RESULTS 1 Weight gain - the linear growth of Inactive Dried Yeast in feeds, provided increases on weight gain (P<0.04) in the 1 st cycle. In general, best results were obtained with 2.5% of Inactive Dried Yeast inclusion rate. Eggs production (laying) - there was significant increase (P<0.04) of eggs production only in the 2 nd cycle. Best result was achieved when using 5.0% of Inactive Dried Yeast. Eggs weight - 2.5% of Yeast addition improved the eggs weight in the 2 nd, 3 th and 4 th cycles (P<0.03).

14. your yeast supplier www.yeastbrazil.com RESULTS 2 Feed conversion - the lowest levels of Yeast inclusion provided a better response in on feed conversion rates. Yolk egg color - there was linear positive effect (P<0.02) on the egg yolk color only on the 2 nd cycle, with inclusion of 2.5% of Inactive Dried Yeast.

15. your yeast supplier www.yeastbrazil.com CONCLUSION It is feasible to add Inactive Dried Yeast up to 7.5% in the hens feed, during the period of 19 to 35 weeks of age. Evaluating the two first cycles (27 weeks age), best results of laying, daily weight gain, feed intake and feed conversion, were found when used 5.0% of Inactive Dried Yeast. In the 3 th and 4 th cycles (28 weeks-), low inactive dried yeast inclusion levels (2.5% and 5.0%) provided the best responses on egg weight and feed conversion.