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Table 3 Lactation performance of Holstein cows fed total mixed diets containing monoculture bahiagrass baleage (MBB), bahiagrass-alfalfa baleage (BAB) or conventional corn silage (CCS)

From: Evaluation of alfalfa inter-seeding effect on bahiagrass baleage fermentation and lactating Holstein performance

 

Silage crop

Item

MBB

BAB

CCS

SE

Cows

12

12

12

 

DM intake, kg

19.51a

21.56a

25.50b

0.75

CP intake, kg

2.86a

3.20ab

3.48b

0.24

NDF intake, kg

9.81a

10.26a

8.18b

0.85

Milk yield, kg1

26.11a

28.44b

33.12c

0.71

3.5% FCM, kg

27.58a

29.83a

35.26b

1.20

Fat,%

3.87a

3.95a

3.83a

0.12

Fat, kg

1.00a

1.09a

1.28b

0.06

Protein,%

3.08a

3.04a

3.24b

0.04

Protein, kg

0.89a

0.89a

0.95b

0.01

Lactose,%

4.64a

4.68a

4.78b

0.02

Lactose, kg

1.37a

1.38a

1.40a

0.01

MUN, mg/dL

16.80a

15.76a,b

14.31b

0.53

SCC × 1,000

304a

209a

221a

89

FE2, kg fcm/kg DMI

1.49a

1.42a

1.38a

0.06

Initial BW, kg

611.17a

611.26a

657.12a

21.50

Final BW, kg

616.90a

643.38a

681.29a

21.60

BW gain, kg

5.73a

32.12b

24.17ab

4.71

Initial BCS

2.83a

2.63a

2.64a

0.15

Final BCS

2.78a

2.67a

3.03a

0.13

BCS change

-0.05a

0.04a

0.39b

0.11

  1. a, b, cMeans in a row with different superscripts differ significantly (P < 0.05).
  2. 1Milk yield for BAB tended to be higher than MBB (P < 0.10). Milk yield for CCS was higher than either MBB or BAB (P < 0.05).
  3. 2FE = feed efficiency.