The effect of Yarrowia lipolytica culture on growth performance, ruminal fermentation and blood parameters of dairy calves
| Autor: | Jolanta Komisarek, Włodzimierz Nowak, A. Frankiewicz, Michał Gąsiorek, M. Kasprowicz-Potocka, Barbara Stefańska, Daniel Stanisławski |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
biology 0402 animal and dairy science food and beverages Yarrowia 04 agricultural and veterinary sciences biology.organism_classification Body weight 040201 dairy & animal science Yeast 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Ruminal fermentation Glycerol Colostrum Animal Science and Zoology Fermentation Food science Blood parameters |
| Zdroj: | Animal Feed Science and Technology. 243:72-79 |
| ISSN: | 0377-8401 |
| DOI: | 10.1016/j.anifeedsci.2018.06.013 |
| Popis: | Yeast cultures have been widely investigated as feed additives to improve growth and health of animals. However, most of the research has focused on Saccharomyces cerevisiae products, whereas effects of non-conventional species such as Yarrowia lipolytica are not yet known. Y. lipolytica is a non-pathogenic yeast which can metabolize glycerol among other important industrial byproducts and is rich in fat and many other nutritional and bioactive compounds. The aim of the study was to investigate the effects of Y. lipolytica culture added to colostrum and milk replacer on reticuloruminal fermentation, biochemical blood indices, and growth rate of calves. During the first 56 d of life, 24 Polish Holstein-Friesian calves were grouped by sex (equal numbers of bulls and heifers) and parity (equal numbers of calves born to primiparous and multiparous cows) and assigned randomly to 2 treatments: yeast culture (YL, Y. lipolytica yeast, n = 12) or control (CON, without yeast additive, n = 12). Y. lipolytica yeast culture was incorporated into colostrum or milk replacer at a dosage of 30 g/d (15 g/feeding; 108 CFU/g). Calves fed YL had higher body weight on d 28 (P = 0.012) and on d 56 (P = 0.011). In the same group, higher average daily gain from d 3 to 28 (P = 0.012), from d 29 to 56 (P = 0.033), and for the entire experimental period (P = 0.011) were noted. From d 3 to 56, the YL increased changes in body length (P = 0.024), hip width (P = 0.029) and heart girth (P 0.05). |
| Databáze: | OpenAIRE |
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