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CALF DIGESTION TRIAL WITH ENZYMATIC PRODUCT MSE

L. B. Daniels The Department of Animal Sciences The University of Arkansas

A digestion trial using nine Holstein calves of approximately eight weeks of age, was conducted to evaluate an enzymatic preparation (MSE) produced by Natur's Way, Inc. The trial consisted of A 7-day pre-adjustment and a 5-day total fecal collection trial. The diet is listed in table 1 MSE was added at the rate of two and 4 pounds per ton of feed. Feed and feces were analyzed for dry matter protein and energy by conventional laboratory methods. These results are listed in table 2.

Conclusion:
It appears from this data that an increase in both protein and energy digestibility occurs upon the addition of either two or 4 pounds of MSE per ton. No advantage was seen in adding 4 pounds over the 2-pound rate.
Results are shown as the following:
Table 1. Experimental Diet Fed Calves
.

MSE /ton

Ingredient %

0 lb.

2 lb.

4 lb.

Corn

57.5

55.5

53.5

Soybean meal

16.0

16.0

55.5

Oats

20.0

20.0

16.0

MSE

0.0

2.0

20.0

Salt

0.5

0.5

2.0

Molasses

5.0

5.0

0.5

Dicalcium Phosphate

1.0

1.0

5.0

Trace mineral mix -------------- 1.0 lb/ton --------------
Vitamin A -------------- 4,000 IU/lb-------------
Vitamin D -------------- 400 IU/lb --------------
Vitamin E -------------- 125 IU/lb --------------


Table 2. Results of Calf Digestion Trial

.

Control

2.0 lb/ton

4.0 lb/ton

Average beginning weight, lb.

147.0

150.0

147.0

Average ending weight, lb.

152.0

166.0

161.0

Average weight gain, lb.

7.0

16.0

14.0

Dry matter digestibility, %

69.0

71.5

70.0

Protein digestibility, %

65.2

70.7

71.5

Energy digestibility, %

60.8

69.5

65.0

 

 

 

   

   





   


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