Effect of yeast products supplementation during transition period on metabolic profile and milk production in dairy cows
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Effect of yeast products supplementation during transition period on metabolic profile and milk production in dairy cows Claudia Faccio-Demarco 1 & Tatiele Mumbach 1 & Vanessa Oliveira-de-Freitas 1 & Raquel Fraga e Silva-Raimondo 2 & Fernanda Medeiros-Gonçalves 1 & Marcio Nunes-Corrêa 1 & Francisco Augusto Burkert-Del Pino 1 & Henrique MendonçaNunes-Ribeiro Filho 3 & Cássio Cassal-Brauner 1 Received: 6 July 2018 / Accepted: 15 May 2019 # Springer Nature B.V. 2019
Abstract The aim of the current study was to assess the effect that supplementation with yeast culture plus enzymatically hydrolyzed yeast (YC-EHY) during the transition period and lactation had on the performance, somatic cell count (SCC), and metabolic profile of dairy cows. Thirty multiparous Holstein dairy cows were divided into two groups. The treatments were 0 supplementation (control) and supplementation with 28 g/cow/day of YC-EHY. The supplementation began 35 ± 5 days before the expected calving date. The cows were kept in their respective treatments for 50 days after the calving date. Body condition score (BCS), body weight, milk composition, SCC, and milk yield were assessed on a 2-weekly basis. Plasma samples were collected on days − 21st, − 7th, 0, 3rd, 7th, and weekly thereafter until 42 days postpartum and analyzed for albumin, β-hydroxybutyrate (BHBA), urea, and non-esterified fatty acids (NEFA). There was an effect of treatment on milk yield in the supplemented animals in comparison to the control group (27.88 ± 0.98 vs 24.58 ± 0.99 kg/days, P = 0.03). There was no effect of treatment (P > 0.05) on variables like 3.5% fat-corrected milk (FCM) and energy-corrected milk (ECM), milk component (%), milk composition yield (kg/day), and SCC. There was an interaction between group × days on ECM (P = 0.04) and protein (P = 0.008). The supplementation had no effect on the analyzed metabolites and on body weight and BCS. The supplementation with YC-EHY during the transition period and lactation improved milk yield without altering the metabolic profile. Keywords Hydrolyzed yeast . Metabolism . Milk yield . Transition period
Introduction The transition period in cows is a stressful moment between the end of gestation and early lactation, which is characterized
by high energy and nutrient demand for milk synthesis (Grummer 1995; Yuan et al. 2015). Therefore, the importance of maintaining the energy balance and avoiding energy damages that occur in this period will be detrimental to the entire
* Cássio Cassal-Brauner [email protected]
Marcio Nunes-Corrêa [email protected]
Claudia Faccio-Demarco [email protected]
Francisco Augusto Burkert-Del Pino [email protected]
Tatiele Mumbach [email protected]
Henrique Mendonça-Nunes-Ribeiro Filho [email protected]
Vanessa Oliveira-de-Freitas [email protected]
1
Núcleo de Pesquisa, Ensino e Extensão em Pecuária, Universidade Federal de Pelotas, Pelotas 96160-000, Brazil
2
Departamento de Medicina Animal, Faculdade de Veterinária, Universi
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