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Short Communication: Responses to supplemental Saccharomyces cerevisiae fermentation product and triticale grain in dairy cows grazing high-quality pasture in early lactation
journal contribution
posted on 2023-05-17, 06:22 authored by Lesley IrvineLesley Irvine, Mark FreemanMark Freeman, Donaghy, DJ, Yoon, I, Lee, G, Roche, JRSupplementing cows grazing highly digestible pasture with a Saccharomyces cerevisiae fermentation product (SCFP) was hypothesized to increase dry matter (DM) intake and milk production. Sixty multiparous dairy cows were fed 3 kg of crushed triticale DM/cow per day for 23 ± 4.4 d before calving. Half of the cows received SCFP (60 g/d; Diamond V Original XP; Diamond V Mills, Inc., Cedar Rapids, IA). Cows in both treatment groups were randomly allocated at calving to 1 of 2 amounts (3 or 6 kg of DM/d) of triticale feeding with or without 60 g of SCFP/day (n = 15/treatment) until 84 days in milk. The amount of pasture harvested (kg of DM/cow per day) and milk yield (kg/cow per day) were not affected by SCFP. Milk protein content and yield were greater in cows receiving 6 kg of crushed triticale DM/d. Plasma nonesterified fatty acids and â-hydroxybutyrate concentrations were not affected by SCFP supplementation, but were lower in cows fed 6 kg of crushed triticale DM/d than those fed 3 kg of DM/d. Supplementation with SCFP increased milk lactose content without affecting milk production under the conditions investigated.
History
Publication title
Journal of Dairy ScienceVolume
94Issue
6Pagination
3119-3123ISSN
0022-0302Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Amer Dairy Science AssocPlace of publication
1111 N Dunlap Ave, Savoy, USA, Il, 61874Rights statement
Copyright © 2011 by ADSA.Repository Status
- Restricted