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Logo Leibniz Institute for Farm Animal Biology
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Arch. Anim. Breed., 60, 439-446, 2017
https://doi.org/10.5194/aab-60-439-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Original study
21 Dec 2017
The effects of Saccharomyces cerevisiae on the morphological and biomechanical characteristics of the tibiotarsus in broiler chickens
Bayram Suzer1, Ilker Arican1, Derya Yesilbag2, and Huseyin Yildiz1 1Department of Anatomy, Faculty of Veterinary Medicine, Uludag University, 16059 Bursa, Turkey
2Department of Animal Nutrition and Nutrition Diseases, Faculty of Veterinary Medicine, Uludag University, 16059 Bursa, Turkey
Abstract. The aim of this study is to examine the effects of different levels of the feed supplement Saccharomyces cerevisiae, a yeast metabolite, on broiler tibiotarsus traits and to reduce leg problems by identifying the pathological changes in leg skeletal system. Thus, reducing leg disorders due to the skeletal system, the cause of significant economic losses in our country (Turkey), was investigated by the supplementation of Saccharomyces cerevisiae in broiler feed.

In the study, 300 male day-old, Ross 308 broiler chicks were used. Experiment groups were designed as follows: control; 0.1 % Saccharomyces cerevisiae; 0.2 % Saccharomyces cerevisiae; 0.4 % Saccharomyces cerevisiae. The experimental diets were chemically analyzed according to the methods of the Association of Official Analytical Chemists. Twelve groups were obtained, including three replicates for each experimental group. Each replicated group was comprised of 25 chicks, and thus 75 chicks were placed in each experimental group. After 42 days, broiler chickens were slaughtered. Tibiotarsi were weighed with a digital scale, and the lengths were measured with a digital caliper after the drying process. Cortical areas were measured with the ImageJ Image Processing and Analysis Program. A UTEST Model-7014 tension and compression machine and a Maxtest software were used to determine the bone strength of the tibiotarsus. The severity of the tibial dyschondroplasia lesion was evaluated as 0, +1, +2 and +3. Crude ash, calcium and phosphorus analyses were performed to determine the inorganic matter of tibiotarsi. For radiographic evaluations of epiphyseal growth plates, tibiotarsi from the right legs were photographed in lateral and craniocaudal positions and examined. Statistical analyses were performed with the SPSS statistics program.

It was observed that the use of Saccharomyces cerevisiae as a feed supplement led to an increase in the bone traits of broiler chickens. Optimum results for bone mineral content, biomechanical traits and strength were provided by the addition of 0.2 % Saccharomyces cerevisiae in broiler feed.

As a result, the use of yeast as feed supplements in broilers is considered to be an economic and convenient way of providing animal welfare and preventing commercial losses due to leg problems.


Citation: Suzer, B., Arican, I., Yesilbag, D., and Yildiz, H.: The effects of Saccharomyces cerevisiae on the morphological and biomechanical characteristics of the tibiotarsus in broiler chickens, Arch. Anim. Breed., 60, 439-446, https://doi.org/10.5194/aab-60-439-2017, 2017.
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Short summary
This study focused on examining the effects of different levels of Saccharomyces cerevisiae on broiler tibiotarsus traits and the reduction of leg problems by identifying the pathological changes in the leg skeletal system. Yeast supplementation led to an improvement in the bone traits of broiler chickens. Therefore, the use of yeast as a feed supplement in broilers is considered an economic and convenient way of providing animal welfare and preventing commercial losses due to leg problems.
This study focused on examining the effects of different levels of Saccharomyces cerevisiae on...
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