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Table 3 Effects of Saccharomyces cerevisiae fermentation product on lactation performance of dairy cows fed corn stover-containing diet

From: Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage

Itema SCFPb, g/d SEM P-valuec
0 60 120 180 L Q W T × W
DMI, kg/d 20.1 20.3 19.9 19.9 0.22 0.26 0.54 <0.01 0.92
Milk yield, kg/d 22.1 21.8 22.6 22.3 0.28 0.08 0.89 <0.01 <0.01
ECM, kg/d 25.4 25.8 26.0 25.7 0.35 0.52 0.35 <0.01 <0.01
Milk composition, %
 Fat 4.35 4.41 4.35 4.36 0.075 0.95 0.81 <0.01 <0.01
 Protein 3.41 3.44 3.41 3.44 0.039 0.74 0.87 <0.01 <0.01
 Lactose 4.78 4.79 4.73 4.75 0.036 0.33 0.87 <0.01 0.65
 Total solids 13.7 13.7 13.4 13.6 0.19 0.55 0.59 <0.01 0.98
 SCC, ×104 57.9 35.2 46.9 47.6 11.4 0.63 0.78 0.95 0.75
 MUN, mg/dL 13.9 13.8 13.9 13.8 0.37 0.84 0.86 <0.01 0.75
Initial BW, kg 654 643 670 651 13.7 0.78 0.47   
BW gain, kg/d 0.17 0.22 0.15 0.05 0.14 0.62 0.27   
BCS 2.98 2.77 2.99 2.80 0.10 0.47 0.94 0.04 0.20
Feed efficiency 1.28 1.28 1.32 1.28 0.025 0.17 0.50 <0.01 0.67
N conversion 24.7 24.3 25.2 25.1 0.21 0.04 0.82 <0.01 0.17
  1. aDMI = dry matter intake; ECM (energy-corrected milk, kg) = 0.3246 × milk yield (kg) + 13.86 × fat yield (kg) + 7.04 × protein yield (kg) [44]; SCC = somatic cell counts; MUN = milk urea nitrogen; Feed efficiency = kg of ECM/kg of DMI; BCS = body condition score; N conversion = kg of milk protein yield/kg of dietary crude protein intake × 100
  2. b Saccharomyces cerevisiae fermentation product (Diamond V Original XP, Cedar Rapids, Iowa, USA)
  3. cT = treatment effect; W = week effect; T × W = interaction between treatment and week; L = linear effect of treatment; Q = quadratic effect of treatment