207 Improving Performance of Finishing Pigs with Added Val, Ile, and Trp: Validating a Meta-analysis Model

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 70-71
Author(s):  
Hayden R Kerkaert ◽  
Henrique S Cemin ◽  
Mike D Tokach ◽  
Jason C Woodworth ◽  
Joel M DeRouchey ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Block Design ◽  
Experimental Unit ◽  
Analysis Model ◽  
Negative Effects ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Corn Protein ◽  
Unit Body Weight ◽  
Dietary Treatments

Abstract Based on a recent meta-analysis, we hypothesized that increased dietary Val, Ile, or Trp could correct possible amino acid interactions caused by high dietary Leu in diets containing high levels of corn protein, namely dried distillers grains with solubles (DDGS). A total of 1,200 pigs (PIC TR4×(Fast LW×PIC L02); initially 33.6±0.63 kg) were used in a 103-d study. The 6 dietary treatments were corn-soybean meal-DDGS-based diets as follow: low level of Lys-HCl (SBM), high Lys-HCl and moderate Ile, Val, Trp (NC; AA above NRC 2012 estimates), moderate Lys-HCl and high Ile, Val, Trp (PC), and PC with either increased L-Val (Val), L-Ile (Ile), or L-Trp (Trp). Diets contained 30% DDGS until pigs reached approximately 100 kg and then 20% DDGS until market. Data were analyzed as a randomized complete block design using lmer function in lme4 package in R with pen considered as the experimental unit, body weight as blocking factor, and treatment as a fixed effect with 10 replicates/treatment. Overall final BW and ADG were greater for pigs fed SBM, Val, and Ile diets than the NC with PC and Trp intermediate. Pigs fed the Val diet had greater (R< 0.05) ADFI than the NC with pigs fed SBM, PC, Ile, and Trp intermediate. No differences were detected between treatments for G:F. In conclusion, increasing Val or Ile in high Lys-HCl-DDGS-based diets improved growth performance and final BW compared with pigs fed diets containing high levels of HCl-Lys without added Val and Ile. These results demonstrate that negative effects of high Leu in corn-DDGS-based diets can be overcome by increasing the ratios of Val and Ile to Lys.

172 Effects of Dietary Valine, Isoleucine, and Tryptophan Supplementations to Diets Containing Excess Leucine from Corn Protein on Growth Performance of Growing Pigs

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 61-62
Author(s):  
Woongbi Bi Kwon ◽  
Jose A Soto ◽  
Hans H Stein
Keyword(s):  
Block Design ◽  
Control Diet ◽  
Average Daily Gain ◽  
Growing Pigs ◽  
Experimental Unit ◽  
Negative Effects ◽  
Final Body Weight ◽  
Corn Protein ◽  
Dietary Treatments ◽  
Daily Gain

Abstract An experiment was conducted to test the hypothesis that addition of Val, Ile, or Trp alone or in combination will reduce the negative effects of excess Leu in diets for growing pigs. A total of 288 growing pigs (28.6 ± 2.5 kg) were randomly assigned to 1 of 9 dietary treatments in a randomized complete block design. There were 2 barrows and 2 gilts in each pen and 8 replicate pens per treatment. A control diet based on corn and soybean meal and 8 diets based on corn and a high-protein corn product (48% crude protein) with 2 levels of crystalline L-Val (0 or 0.10%), L-Ile (0 or 0.10%), and L-Trp (0 or 0.05%) were formulated. The crystalline L-Val, L-Ile, and L-Trp increased standardized ileal digestible (SID) Val:Lys from 70 to 80%, SID Ile:Lys from 53 to 63%, and SID Trp:Lys from 18 to 23%, respectively. All diets were formulated to contain 1.00% SID Lys and the 8 diets containing corn protein contained 171% SID Leu:Lys. Individual pig weights were recorded at the beginning and at the conclusion of the 28-d experiment. Data were analyzed using the PROC MIXED of SAS with a pen as the experimental unit. Diet was the fixed effect and block and replicate within block were random effects. Results indicated that final body weight and average daily gain were not different between pigs fed the control diet and pigs fed the diet with Val and Trp addition, but greater (P < 0.001) than for pigs fed the diet with Val addition, Ile addition, Trp addition, Val and Ile addition, Ile and Trp addition, or Val, Ile, and Trp addition (Table 1). In conclusion, addition of Val and Trp to diets with excess Leu may prevent negative effects of excess Leu in diets for growing pigs.

scholarly journals Improving performance of finishing pigs with added valine, isoleucine, and tryptophan: validating a meta-analysis model

2021 ◽  
Vol 99 (1) ◽  
Author(s):  
Hayden R Kerkaert ◽  
Henrique S Cemin ◽  
Jason C Woodworth ◽  
Joel M DeRouchey ◽  
Steve S Dritz ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Average Daily Gain ◽  
Finishing Pigs ◽  
Analysis Model ◽  
Negative Effects ◽  
Distiller's Grains ◽  
Corn Protein ◽  
Dietary Treatments ◽  
Relative Differences ◽  
Daily Gain

Abstract Based on results of a recent meta-analysis, we hypothesized that increased dietary Val, Ile, or Trp could correct possible amino acid interactions because of excess Leu in diets containing high levels of corn protein, namely dried distiller’s grains with solubles (DDGS). A total of 1,200 pigs (PIC TR4 × (Fast LW × PIC L02); initially 33.6 ± 0.6 kg) were used in a 103-d study. The 6 dietary treatments were corn–soybean meal (SBM)-DDGS-based as follows: (1) high SBM and low level of l-Lys HCl (HSBM), (2) high l-Lys HCl and moderate Ile, Val, Trp (AA above NRC 2012 estimates; NC), (3) moderate l-Lys HCl and high Ile, Val, and Trp (PC), and PC with either increased (4) L-Val (PC+Val), (5) L-Ile (PC+Ile), or (6) L-Trp (PC+Trp). Pigs fed the NC diet were predicted to have the poorest average daily gain (ADG), the PC diet to be intermediate, and pigs fed the HSBM, PC+Val, PC+Ile, and PC+Trp have the same and highest predicted ADG. In the grower period (34 to 90 kg), ADG was greater (Ρ < 0.05) for the pigs fed HSBM and PC+Val diets than the NC with pigs fed other diets intermediate. Pigs fed HSBM were more (Ρ < 0.05) efficient (G:F) than the NC and PC with pigs fed other diets intermediate. In the finisher period (90 to 136 kg), ADG was greater (Ρ < 0.05) for pigs fed PC+Ile than that of the NC with pigs fed other diets intermediate. Pigs fed PC+Val had greater (Ρ < 0.05) average daily feed intake (ADFI) than the NC with pigs fed other diets intermediate. However, PC+Ile pigs were more (Ρ < 0.05) efficient than PC+Val with pigs fed other diets intermediate. Overall, ADG was greater (Ρ < 0.05) for pigs fed HSBM, PC+Val, and PC+Ile diets than the NC with pigs fed other diets intermediate. Pigs fed the PC+Val diet had greater (Ρ < 0.05) ADFI than the NC with pigs fed other diets intermediate. No differences were detected between treatments for overall G:F or other carcass characteristics. In conclusion, increasing Val or Ile in high l-Lys-HCl-DDGS-based diets improved growth performance compared with pigs fed diets containing high levels of l-Lys HCl without added Val and Ile. These results present evidence that the recently developed meta-analysis can predict the relative differences in overall ADG for pigs fed the NC, PC, PC+Val, and PC+Ile diets; however, the predicted G:F was less accurate. The data demonstrate that the negative effects of high Leu concentrations in corn-DDGS-based diets can be reversed by increasing the ratios of Val and Ile relative to Lys.

scholarly journals PSIV-15 Determining the effects of increasing levels of xylanase in nutrient adequate diets on growth performance, carcass characteristics of growing-finishing pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 176-177
Author(s):  
Hayden R Kerkaert ◽  
Joel M DeRouchey ◽  
Steve S Dritz ◽  
Robert D Goodband ◽  
Mike D Tokach ◽  
...  
Keyword(s):  
Growth Performance ◽  
Block Design ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Experimental Unit ◽  
Finishing Pigs ◽  
Carcass Yield ◽  
Distillers Grains With Solubles ◽  
Treatment Data ◽  
Unit Body Weight

Abstract A total of 1,944 mixed sex growing-finishing pigs (PIC; 337×1050; initial BW of 22.5±0.53 kg) were used in a 131-d growth trial to determine the effects of increasing levels of xylanase in adequate diets on grow-finish pig growth performance and carcass characteristics. The 6 dietary treatments consisted of corn, soybean meal, and dried distillers grains with solubles with added xylanase (Belfeed B 1100 MP; Jefo Nutrition Inc., Saint-Hyacinthe, Quebec) formulated to: 0, 5, 10, 20, 40, and 75 of enzymatic activity for xylanase (IU/kg) with 27 pigs per pen and 12 replicates per treatment. Data were analyzed as a randomized complete block design using lmer function in lme4 package in R with pen considered as the experimental unit, body weight as blocking factor, and treatment as a fixed effect. From d 0 to 70, there was a tendency (quadratic, R=0.068) for average daily gain (ADG) to decrease and then increase with increasing added xylanase, but there was no evidence (R >0.10) of differences for average daily feed intake (ADFI) and feed efficiency (G/F). From d 70 to 131 and overall, there was no evidence of difference (R >0.10) observed for ADG, ADFI, and F/G. There was no evidence for difference (R >0.10) between treatments for number of pigs receiving injectable treatments or mortalities. For carcass traits, increasing xylanase increased then decreased (quadratic, R=0.010) percentage carcass yield. Also, as xylanase increased, percentage lean decreased (linear, R=0.038) and backfat marginally increased (linear, R=0.066). In conclusion, adding increasing levels of xylanase in nutrient adequate diets did not influence growth performance or mortality but did improve carcass yield when intermediate levels were fed.

PSIV-21 Impact of Increasing Standardized Ileal Digestible valine:lysine in Diets Containing 30% Dried Distillers Grains with Solubles on Early Grow-finish Pig Performance

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 187-187
Author(s):  
David A Clizer ◽  
Ryan S Samuel ◽  
Paul M Cline
Keyword(s):  
Distillers Grains ◽  
Experimental Unit ◽  
Improve Performance ◽  
Single Degree Of Freedom ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Treatment Responses ◽  
Pig Performance ◽  
Dietary Treatments ◽  
Minimal Research

Abstract Minimal research has investigated the valine (Val) requirement in grow-finish pig diets, especially when diets contain dried distillers grains plus solubles (DDGS). Therefore, the objective of this study was to determine the standardized ileal digestible (SID) Val:lysine (Lys) requirement in diets containing 30% DDGS. A total of 2,430 pigs (39.4 ± 0.21 kg) were used in a 28-d trial (15 replicates per treatment). Pens were randomly allotted within block to one of six dietary treatments: 30% DDGS diets with a SID Val:Lys ratio of 60, 65, 70, 75, and 80% or a corn-soybean meal diet (CS). Data were analyzed as a randomized complete block, pair-wise comparisons and single degree of freedom orthogonal polynomials (DDGS diets only) were used to evaluate treatment responses, and pen was the experimental unit. Straight broken line (SBL) and quadratic broken line (QBL) regression analysis was used to estimate the SID Val requirement. Increasing SID Val:Lys up to 70% in 30% DDGS increased final BW, ADG and G:F (quadratic; P < 0.001), while increasing SID Val:Lys up to 75% in DDGS diets increased ADFI (quadratic; P < 0.001) Pigs fed CS had greater (P < 0.032) ADG, G:F, and ADFI compared to diets containing 30% DDGS except for cumulative ADFI of pigs receiving diets with 75% SID Val:Lys (P = 0.167). The SBL analysis estimated SID Val:Lys requirement at 66.4, 65.4, and 68.0% for ADG, ADFI, and G:F of pigs from 39.4 to 52.9 kg of body weight (BW) and 66.8, 65.7, and 70.4% for the pigs between the BW of 52.9 and 66.4 kg. The QBL analysis revealed a similar SID Val:Leucine ratio of 52.2% for G:F in both periods. This data suggests a SID Val:Lys requirement of 66.6% in diets containing 30% DDGS for pigs between the BW of 39.4 to 66.4 kg. Increasing the SID Val:Lys ratio in 30% DDGS diets did not improve performance congruent to CS fed pigs.

169 The Effect of Standardized Ileal Digestible isoleucine:lysine in Diets Containing 20% Dried Distillers Grains with Solubles on Finishing Pig Performance and Carcass Characteristics

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 60-60
Author(s):  
David A Clizer ◽  
Ryan S Samuel ◽  
Paul M Cline
Keyword(s):  
Previous Treatment ◽  
Distillers Grains ◽  
Experimental Unit ◽  
Distillers Grains With Solubles ◽  
Finishing Diets ◽  
Dried Distillers Grains ◽  
Finishing Pig ◽  
Pig Performance ◽  
Branched Chain ◽  
Dietary Treatments

Abstract Previous research suggests an increase of the isoleucine (Ile) requirement for late finishing pigs. Diets containing dried distillers grains with solubles (DDGS) provide excess leucine which can lead to changes in available Ile due to the antagonistic relationship of branched chain amino acids. Therefore, the Ile requirement in finishing diets containing DDGS deserve to be re-evaluated. A finishing study was conducted to determine the standardized ileal digestible (SID) Ile:Lysine (Lys) requirement in diets containing 20% DDGS. Pigs (n = 2,268; 82.3 ± 0.39 kgs) were used in a 56-d trial (14 replicates per treatment). Pens were assigned to one of six dietary treatments balancing for previous treatment. Treatments consisted of a corn-soybean meal diet (CS) or diets containing 20% DDGS with a SID Ile:lys ratio of 55, 60, 65, 70, or 75%. Data was analyzed as a randomized complete block, pair-wise comparisons and single degree of freedom orthogonal polynomials (DDGS diets only) were used to evaluate treatment responses, and pen was the experimental unit. Increasing the SID Ile:Lys did not impact cumulative performance of pigs fed diets containing 20% DDGS (P > 0.175). Pigs fed CS had improved (P < 0.010) ADFI compared to pigs fed SID Ile:Lys of 65 and 75% and tended (P = 0.084) to have greater ADG than 55 and 75% Ile:Lys treatments. Feed efficiency did not differ due to treatment (P = 0.427). Increasing the SID Ile:Lys to 65% in 20% DDGS diets decreased back fat and increased loin depth (quadratic; P < 0.029) and tended to increase percent lean (quadratic; P = 0.076), but did not alter hot carcass weight (P > 0.428). Pigs fed CS diets had greater hot carcass weights (P < 0.031) compared to pigs fed DDGS diets except for pigs fed 60% Ile:Lys diets. These data suggest a SID Ile:Lys of 60% is required to maximize growth performance and SID Ile:Lys of 65% increases carcass traits in diets containing 20% DDGS.

scholarly journals 202 Determining the effects of increasing dietary standardized ileal digestible lysine levels on growth performance and carcass characteristics of growing-finishing pigs from 29- to 129-kg

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 72-73
Author(s):  
Steve J Kitt ◽  
Wayne Cast ◽  
Mark Hover ◽  
Carine Vier ◽  
Chris Sievers ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
Block Design ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Experimental Unit ◽  
Finishing Pigs ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
The Difference

Abstract Our objective was to determine the effects of increasing standardized ileal digestible (SID) lysine (Lys) levels on growth performance and carcass characteristics of growing-finishing pigs. A total of 1,013 barrows and gilts (PIC337×Camborough, initially 29.2±0.21 kg) were used in a 112-d growth trial with 25 or 26 pigs per pen and 13 pens per treatment in a randomized complete block design. Diets were corn-soybean meal (SBM)-dried distillers grains with solubles-based, and treatments were achieved through the inclusion of SBM at the expense of corn. Diets were fed in 6 phases and formulated to be iso-caloric within each phase. Treatments consisted of: 1) Low Lys: overall dietary SID Lys levels as 87% of PIC2016 Lys requirement; 2) Medium Lys: overall dietary SID Lys levels as 97% of PIC2016 Lys requirement; 3) High Lys: overall dietary SID Lys levels as 106% of PIC2016 Lys requirement. Experimental data were analyzed using generalized linear mixed models with pen as the experimental unit. Pigs fed High or Medium Lys had greater (P< 0.01) average daily gain compared to pigs fed Low Lys. There was no evidence (P >0.10) for the difference between treatments for average daily feed intake. Pigs fed High Lys had the greatest (P< 0.01) feed efficiency (G:F) followed by Medium Lys, with pigs fed Low Lys with the lowest G:F. Pigs fed High or Medium Lys had greater (P< 0.01) hot carcass weight, loin depth, and lean percentage compared to pigs fed Low Lys. There was no evidence (P >0.10) for treatment effect on carcass yield and backfat. Pigs fed Low Lys had greater removal and mortality rate than those fed High or Medium Lys (P< 0.01). In conclusion, increasing SID Lys over PIC2016 recommendations through increasing SBM levels resulted in increased growth performance and carcass characteristics, and reduced removal and mortality rate of 29- to- 129 kg pigs.

124 Effects of Different Feeding Levels Prior to Farrowing on Sow and Litter Performance

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 53-54
Author(s):  
Heath Harper ◽  
Gustavo Silva ◽  
Beau A Peterson ◽  
Andrea Hanson ◽  
Dan N Hamilton ◽  
...  
Keyword(s):  
Feed Intake ◽  
Block Design ◽  
Random Effect ◽  
Distillers Grains ◽  
Model Fit ◽  
Experimental Unit ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Randomized Complete Block Design ◽  
Ad Libitum

Abstract Our objective was to determine the effects of different pre-farrow feeding levels on sow and litter performance. On d 112 of gestation, a total of 309 sows (Camborough; PIC, Hendersonville, TN) were blocked by parity (P1, P2, P3+) and body weight and allotted to one of three treatments in a randomized complete block design. Treatments consisted of different feeding levels, which included: 1) 1.81 kg/d; 2) 2.72 kg/d; and 3) ad libitum access to feed. Sows were fed a corn-soybean meal-dried distillers grains with solubles-based lactation diet containing 3.36 Mcal of ME/kg and 1.17% SID Lys. Sows were weighed and visual BCS and caliper units were recorded at entry into the farrowing room at d 112 of gestation and at weaning. Daily feed intake was recorded from the beginning of the study until weaning. Litters were cross-fostered within treatment within 24-h after farrowing, and litter weights were collected at 12-h post-farrow and at weaning. Data were analyzed using the GLIMMIX procedure of SAS with sow as the experimental unit and block as a random effect. Covariates were used if they significantly improved the model fit. Ad libitum sows had the greatest (P < 0.05) feed intake from d 112 to farrow, followed by 2.72 kg/d and 1.81 kg/d treatments; however, no evidence (P > 0.10) for differences in lactation feed intake were observed. Wean-to-estrus interval was greater (P < 0.05) for ad libitum sows compared to sows fed 1.81 kg/d. Removal plus mortality rate was marginally lower (P < 0.10) for sows fed 2.72 kg/d compared to sows fed 1.81 kg/d. No evidence (P > 0.10) for treatment differences were observed in total born, stillbirth rate, and litter or piglet weight gain during lactation. In conclusion, results from this study do not support increasing feeding levels for sows prior to farrowing starting on d 112 of gestation.

scholarly journals Evaluation of wheat or corn dried distillers’ grains with solubles on performance and carcass characteristics of feedlot steers

2010 ◽  
Vol 90 (2) ◽  
pp. 259-269 ◽  
Author(s):  
L J Walter ◽  
J L Aalhus ◽  
W M Robertson ◽  
T A McAllister ◽  
D J Gibb ◽  
...  
Keyword(s):  
Average Daily Gain ◽  
Barley Grain ◽  
Distillers Grains ◽  
Superior Performance ◽  
Experimental Unit ◽  
Carcass Quality ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Inclusion Level ◽  
Corn Ddgs

A study was conducted on crossbred steers (n = 275; 376 ± 24 kg) to evaluate performance and carcass quality of cattle fed wheat or corn dried distillers’ grains with solubles (DDGS). The control ration contained 86.6% rolled barley grain, 5.7% supplement and 7.7% barley silage (DM basis). The four treatments included replacement of barley grain at 20 or 40% of the diet (DM basis) with wheat or corn DDGS. Steers were slaughtered at a common end weight of 645 kg with 100 steers randomly (n = 20 per treatment) selected for determination of the retail yield of sub-primal boneless boxed beef (SPBBB). Data were analyzed as a completely randomized design using pen as the experimental unit. Feeding increasing levels of wheat DDGS led to a quadratic increase in dry matter intake (DMI) (P < 0.01), whereas increasing levels of corn DDGS led to a quadratic decrease in DMI (P = 0.01). Average daily gain was not influenced (P = 0.13) by feeding wheat or corn DDGS, but cattle fed corn DDGS exhibited a quadratic increase (P = 0.01) in gain:feed. As a result, a quadratic increase (P < 0.01) in calculated NEg of the diet was observed as corn DDGS levels increased. A linear decrease (P = 0.04) in days on feed (169, 166 and 154 d) was noted when increasing levels of wheat DDGS (0, 20 and 40%) were fed. Dressing percentage increased in a linear fashion with wheat DDGS (P < 0.01) inclusion level and in a quadratic fashion (P = 0.01) as corn DDGS inclusion level increased although other carcass traits were not affected (P > 0.10) by treatment. The results indicate that replacement of barley grain with corn or wheat DDGS up to 40% of the diet (DM) can lead to superior performance (improved gain:feed or reduced days on feed, respectively) with no detrimental effect on quality grade or carcass SPBBB yield.Key words: Dried distillers’ grains with solubles, corn, wheat, feedlot performance, carcass quality, steers

scholarly journals 128 Determining the effects of high phytase levels and feeding duration on growth performance and carcass characteristics of growing-finishing pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 50-51
Author(s):  
Carine Vier ◽  
Steve S Dritz ◽  
Mike D Tokach ◽  
Jon Bergstrom ◽  
Jason C Woodworth ◽  
...  
Keyword(s):  
Block Design ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Metabolizable Energy ◽  
Net Energy ◽  
Finishing Pigs ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Feeding Duration ◽  
Heat Stable

Abstract Our objective was to determine the effects of high phytase levels and feeding duration on performance of growing finishing pigs. A total of 1,215 barrows and gilts (PIC 359×Camborough, initially 28.0±0.47 kg) were used in a 126-d growth trial with 27 pigs per pen and 15 pens per treatment in a randomized complete block design. Diets were corn-soybean meal-dried distillers grains with solubles-based.Treatments were: 1) Control (no added phytase); 2) Grower phytase (1,500 FYT/kg added phytase fed from d 0 to 57, then no phytase from d 57 to market); and 3) Grow-finish phytase (1,500 FYT/kg added phytase fed throughout the study). Phytase (Ronozyme Hiphos GT 2500, heat-stable; DSM Nutritional Products, Inc., Parsippany, NJ) was assumed to release 0.146% digestible phosphorus (P), 0.166% available P, 0.102% STTD calcium, 53 kcal/kg of metabolizable energy, 42 kcal/kg of net energy (NE), and 0.0217, 0.0003, 0.00886, 0.0224, 0.0056, 0.0122, and 0.0163% standardized ileal digestible lysine, methionine, methionine+cysteine, threonine, tryptophan, isoleucine, and valine, respectively. Beef tallow and feed grade amino acids (AA) were added to the diets without phytase to balance NE and AA across treatments. Data were analyzed using generalized linear mixed models with pen as the experimental unit.Overall, pigs fed diets with no phytase and pigs that were only fed phytase in the grower period had greater (P&lt; 0.05) average daily gain (ADG) and feed efficiency (G:F) than pigs fed the phytase-containing diets until market. Pigs fed the control and grower phytase treatments had greater (P&lt; 0.10) hot carcass weight (HCW) than the phytase throughout treatment. No evidence of differences (P &gt;0.10) were observed for other carcass characteristics. In summary, adding 1,500 FYT/kg of phytase and using full matrix values for minerals, AA, and energy had detrimental effects on ADG, G:F, and HCW in this study when applied to the entire grow-finish period.

scholarly journals Effect of Dietary Symbiotic and Acidifier on Growth Performance and Nutrients Digestibility in Growing Pigs Crossbreed

2020 ◽  
Vol 6 (2) ◽  
pp. 51
Author(s):  
Danung Nur Adli ◽  
Osfar Sjofjan
Keyword(s):  
Growth Performance ◽  
Block Design ◽  
Basal Diet ◽  
Experimental Period ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Experimental Unit ◽  
Randomized Complete Block Design ◽  
Dietary Treatments ◽  
Nutrients Digestibility

The aim of this study was to assess the effects of dietary probiotic enhanced liquid acidifier combined with mannan-rich fraction on growth performance, nutrients digestibility in growing pigs. Thirty [(Duroc×Yorkshire)×Landrace] pigs with the average initial BW of 36.75±1.57 kg were allocated into three treatments by a randomized complete block design. There were five pens per treatment with six pigs per pen. Dietary treatments include: 1) CON (basal diet); 2) T1 (basal diet+probiotic 0.1%) and 3) T2 (basal diet+probiotic+mannan rich fraction 0.2%). the data were analyzed as a randomized complete block design using of SAS University Version 4.0. The model included the effects of block (replication) and treatment. Pen served as the experimental unit. During the entire experimental period of 6 weeks, results showed that addition of complex probiotic at the level of 0.2% to diet increased ADG significantly (p<0.05). Also, digestibility of DM and N tended to increase. To sum up, results in this experiment indicated that dietary [(probiotik×acidifier)×mannan-rich-fraction]  supplementation had a positive effect on growing pigs performance and nutrient digestibility

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