173
Evaluation of Dose Response Effects of Butipearl™ C on Nursery Pig Growth Performance from d 0 to 42 after Weaning.

Monday, March 13, 2017
Grand Ballroom Foyer (Century Link Center)
J. A. Loughmiller , Kemin Industries, Des Moines, IA
A. L. P. De Souza , Kemin Industries, Des Moines, IA
J. K. Rubach , Kemin Industries, Des Moines, IA
H. Feng , Kemin Industries, Des Moines, IA
D. Sanders , Kemin Industries, Des Moines, IA
V. Mani , Kemin Industries, Des Moines, IA
F. R. Valdez , Kemin Industries, Des Moines, IA
M. J. Poss , Kemin Industries, Des Moines, IA
A study was conducted to evaluate the effects of a novel encapsulated butyric acid plus copper carbonate product (ButiPearl C; Kemin Industries, Des Moines, IA) on weanling pig growth performance. A total of 350 pigs (PIC 280 x 1050; initial BW=5.86 kg) with 10 pigs/pen and 7 replicate pens/treatment were used in a 42 d study. Pigs were housed in a commercial research nursery and allocated in a randomized, complete block design based upon initial BW. Diets were pelleted, corn-soybean meal based and were similar within phase except for the addition of the BuitiPEARLC (BPC). All nutrient concentrations met or exceeded NRC (2012) requirement estimates. Treatments were arranged as a dose titration of BPC at 0, 250, 500, 750, and 1,000 mg/kg of feed. Data were analyzed using a mixed model with othogonal contrasts. During d 0-7 after weaning, ADG and G:F tended to increase as pigs were fed diets containing up to 500 and 750 mg/kg of BPC, respectively, (quadratic, P<0.07). During the same period, ADFI increased when diets containing up to 500 mg/kg of BPC were fed (quadratic, P<0.05). From d 7 to 21, no linear or quadratic effects were observed for ADG, ADFI, or G:F (P>0.40). During d 21 to 42, ADG and G:F increased as pigs were fed diets containing up to 1000 mg/kg BPC (quadratic, P<0.01). During this same period, ADFI increased as pigs were fed diets containing BPC levels up to 1000 mg/kg (quadratic, P<0.05). Overall results (d 0 to 42), showed improved ADG, G:F and final BW for pigs fed diets with up to 750 mg/kg BPC (quadratic, P<0.05). Overall ADFI increased in pigs fed diets containing up to 1000 mg/kg BPC (linear, P<0.04). These results indicate that pig growth performance was optimized when they were fed diets containing up to 750 mg/kg BPC from d 0 to 42 after weaning.

 Table 1. Effect of increasing BPC supplementation on pig performance, d 0 to 42 after weaning

Dietary ButiPEARL C, mg/kg

Contrast (P<)

0

250

500

750

1000

SEM

Linear

Quadratic

 ADG, g

389

397

408

414

417

9

0.01

0.01

 ADFI, g

546

547

564

563

567

12

0.04

0.11

 G:F, g/kg

710

725

721

737

735

15

0.01

0.01

 D 42 BW, kg

22.1

22.5

23.0

23.3

23.4

0.4

0.01

0.01