The effects of ration particle size and live yeast supplementation on dairy cows performance under heat stress conditions

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dc.authoridER, Murat/0000-0001-6623-1539
dc.authorwosidER, Murat/HJZ-5043-2023
dc.contributor.authorEr, Murat
dc.contributor.authorCengiz, Oezcan
dc.date.accessioned2024-03-09T18:48:16Z
dc.date.available2024-03-09T18:48:16Z
dc.date.issued2023
dc.departmentİzmir Bakırçay Üniversitesien_US
dc.description.abstractThe objectives of this experiment were to evaluate the effects of ration particle size and dietary supplementation of live yeast (LY; Saccharomyces cerevisiae) on dry matter intake, milk yield and milk quality, apparent nutrient digestibility, ruminal fermentation parameters, and ruminal volatile fatty acids in dairy cattle under heat stress condition. Four multiparous Holstein dairy cattle in midlactation were fed 4 diets: high particle size (HPS), high particle size with 1 g/d/cow LY (Levucell (R) Sc 10 ME Titan (R) CNCM I-1077 (10 x 10(9) cfu/g) (HPS + LY), short particle size (SPS), short particle size with 1 g/d/cow LY (Levucell (R) Sc 10 ME Titan (R) CNCM I-1077 (10 x 10(9) cfu/g) (SPS + LY). Treatments were arranged in a 2 x 2 factorial within a 4 x 4 Latin square design. Decreasing ration particle size increased intakes of dry matter (DM), neutral detergent fiber (NDF) (P < 0.05) but decreased peNDF intake (P < 0.0001). Milk production and milk fat percentage were similar in cows. Cows fed SPS had lower milk protein percentage (P < 0.05). No treatments had any significant effect on apparent nutrient digestibility. Ruminal pH was higher in cows supplemented LY (P < 0.05). The ruminal total volatile fatty acid (VFA) concentration and percentage of VFAs were not significantly affected by ration particle size or dietary LY supplementing. Rectal temperature (C-o) and respiratory rate (breaths/min) were similar between the groups. In conclusion, it may be concluded that decreasing ration particle size increased DM, and NDF intakes, without affecting milk yield or feed efficiency in cows exposed moderate heat stress.en_US
dc.description.sponsorshipScientific Research Project Council of Adnan Menderes University [VTF-19017]en_US
dc.description.sponsorshipAcknowledgementsThe authors acknowledge the Scientific Research Project Council of Adnan Menderes University under grant number: VTF-19017.en_US
dc.identifier.doi10.1007/s11250-023-03550-2
dc.identifier.issn0049-4747
dc.identifier.issn1573-7438
dc.identifier.issue2en_US
dc.identifier.pmid36959383en_US
dc.identifier.scopus2-s2.0-85150920409en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/s11250-023-03550-2
dc.identifier.urihttps://hdl.handle.net/20.500.14034/1262
dc.identifier.volume55en_US
dc.identifier.wosWOS:000957007900003en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofTropical Animal Health and Productionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDairy Cows; Ration Particle Size; Live Yeast; Heat Stress; Feeding Behavior; Milk Yielden_US
dc.titleThe effects of ration particle size and live yeast supplementation on dairy cows performance under heat stress conditionsen_US
dc.typeArticleen_US

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