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