Abstract #250
Section: Ruminant Nutrition (orals)
Session: Ruminant Nutrition Platform Session: Probiotics, Prebiotics, and Postbiotics: Gut Health and Beyond
Format: Oral
Day/Time: Monday 4:45 PM–5:00 PM
Location: Junior Ballroom A
Session: Ruminant Nutrition Platform Session: Probiotics, Prebiotics, and Postbiotics: Gut Health and Beyond
Format: Oral
Day/Time: Monday 4:45 PM–5:00 PM
Location: Junior Ballroom A
# 250
The effects of Celmanax to dairy cows on pre- and postpartum health and productivity.
H. Chiapetta1, J. Harrison*1, A. Adams-Progar2, E. Block3, 1Washington State University, Puyallup, WA, 2Washington State University, Pullman, WA, 3Church and Dwight, Princeton, NJ.
Key Words: yeast, health, productivity
The effects of Celmanax to dairy cows on pre- and postpartum health and productivity.
H. Chiapetta1, J. Harrison*1, A. Adams-Progar2, E. Block3, 1Washington State University, Puyallup, WA, 2Washington State University, Pullman, WA, 3Church and Dwight, Princeton, NJ.
The objective of this study was to evaluate the effect of feeding Celmanx (Cel) (enzymatically hydrolyzed yeast product) to 40 (20 each treatment group) dairy cows pre- (56 g/d for 21 d) and post- postpartum (28g/d for 60 d) versus a control group. Cows were not vaccinated at the time of dry-off with E Coli or Clostridium vaccines. Cows were individually fed via Calan headgates. Postpartum milk fat and protein % were greater (P < 0.05) for Cel cows: 4.03 vs 3.74, and 3.30 vs 3.11, respectively. Dry matter intake and ECM for Cel and control groups were: 25.7 and 25.2 kg/d; and 45.8 and 46.5 kg/d, respectively. Efficiency of milk production (ECM/DMI) was not different between Cel and control cows: 1.84 vs 1.90, respectively. The occurrence of subclinical ketosis was greater (P < 0.05) for the control group (9/20) compared with Cel group (3/20). Clostridium perfringens (C. perf), Type A was present in all but 7 out of 266 fecal samples. During the pre-partum period, the amount of C. perf present in feces was not different between treatments. During the postpartum period, C. perf score was greater (P < 0.07) in Con cows (1.91 ± 0.2) than in Cel cows (1.67 ± 0.2). Escherichia coli O157:H7 was present in 4 of the 360 fecal samples collected. Of the 4 positive samples, 3 were from 3 different control cows at −14, −7, and 5 DIM. The positive sample for E. coli O157:H7 from the Cel cow was at the first sampling, −21 DIM. Salmonella was present in 7 of the 360 fecal samples collected. Six of the 7 positive samples were taken from control cows. One control cow had Salmonella present in 3 consecutive samples, −7, 0, and 1 DIM. No treatment difference was observed for DIM at first ovulation (P > 0.05). Days in milk at first standing heat was significantly less (P = 0.003) for Cel cows (30 DIM) than for control cows (51 DIM). Incidence of milk fever, retained placenta, metritis, endometritis, mastitis, displaced abomasum, and ketosis were not different between groups. Data suggest a lesser concentration of fecal pathogens in cows supplemented with Cel.
Key Words: yeast, health, productivity
