Effects of dietary soybean oil on pig growth performance, retention of protein, lipids, and energy, and on the net energy of corn in diets fed to growing or finishing pigs

2013 ◽  
Author(s):  
D. Y. Kil ◽  
F. Ji ◽  
L. L. Stewart ◽  
R. B. Hinson ◽  
A. D. Beaulieu ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Growth Performance ◽  
Net Energy ◽  
Finishing Pigs

scholarly journals Amino acid requirements of pigs. 3. Requirement for apparent digestible threonine of pigs in different stages of growth.

1990 ◽  
Vol 38 (3B) ◽  
pp. 609-622
Author(s):  
N.P. Lenis ◽  
J.T.M. van Diepen
Keyword(s):  
Amino Acids ◽  
Growth Performance ◽  
Control Diet ◽  
Maximum Growth ◽  
Positive Control ◽  
Negative Control ◽  
Net Energy ◽  
Finishing Pigs ◽  
Amino Acid Requirements ◽  
Limiting Amino Acids

Individual and group housed crossbred pigs 45 to 105 kg and 65 to 95 kg in experiments 1 and 2, respectively, were given basal diets with L-threonine 0.6, 1.2 and 1.8 g/kg. Positive and negative control diets contained total threonine 5.7 and 4.5 g/kg, respectively. To prevent other amino acids being limiting, the negative control diet was supplemented with lysine, methionine, tryptophan, isoleucine, histidine and valine. The positive control diet was supplemented with lysine and methionine. The requirement for total threonine of growing-finishing pigs for maximum growth performance was about 5.6 g/kg in a diet containing net energy 9.4 MJ/kg. This figure corresponds with about 4.7 g/kg apparent faecal digestible threonine and 4.3 apparent ileal digestible threonine. There was no difference between the growing and the finishing pigs. The requirement for ileal digestible threonine, relative to ileal digestible lysine requirement, was about 64%. It is concluded that dietary protein can be reduced by 2 percentage units without any adverse effect on growth performance, if limiting amino acids are sufficiently supplemented. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Regression analysis to predict growth performance from dietary net energy in growing-finishing pigs

2013 ◽  
pp. 236-245
Author(s):  
Sureemas Nitikanchana ◽  
Steven S Dritz ◽  
Michael D Tokach ◽  
Joel M DeRouchey ◽  
Robert D Goodband ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Growth Performance ◽  
Net Energy ◽  
Finishing Pigs

scholarly journals Interrelationships between sex and dietary lysine on growth performance and carcass composition of finishing boars and gilts1

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Pau Aymerich ◽  
Carme Soldevila ◽  
Jordi Bonet ◽  
Mercè Farré ◽  
Josep Gasa ◽  
...  
Keyword(s):  
Growth Performance ◽  
Average Daily Gain ◽  
Dietary Treatment ◽  
Information Criterion ◽  
Deposition Potential ◽  
Linear Increase ◽  
Carcass Composition ◽  
Net Energy ◽  
Finishing Pigs ◽  
Large White

Abstract The main goals of this study were to determine whether boars and gilts respond differently to the standardized ileal digestible lysine to net energy ratio (SID Lys:NE) and model the response to optimize growth performance. A total of 780 finishing pigs, 390 boars and 390 gilts [Pietrain NN × (Landrace × Large White)], with an initial individual body weight of 70.4 ± 9.2 for boars and 68.7 ± 8.0 kg for gilts, were used in a 41-d dose–response experiment. Pens (13 pigs per pen) were randomly allocated to a dietary treatment (2.64, 3.05, 3.46, 3.86, 4.27 g SID Lys/Mcal NE) by block and sex, with six replicates per treatment and sex. Two isoenergetic diets (2,460 kcal NE/kg), representing the extreme SID Lys:NE, were formulated and then mixed. Pigs were individually weighed at days 0, 22, and 41, when the experiment finished. The differential effect of SID Lys:NE on growth performance and carcass composition between sexes was analyzed with orthogonal polynomial contrasts to compare the linear and quadratic trends in each sex. In addition, broken-line linear (BLL) models to optimize average daily gain (ADG), including average daily feed intake (ADFI) as a covariate, were fitted when possible. As expected, boars had a greater ADG and feed efficiency (G:F; P < 0.001) than gilts, but there was no evidence of differences in ADFI (P = 0.470). Increasing SID Lys:NE had a greater linear impact on boars ADG (P = 0.087), G:F (P = 0.003), and carcass leanness (P = 0.032). In contrast, gilts showed a greater linear increase in SID Lys intake per kg gain (P < 0.001) and feed cost per kg gain (P = 0.005). The best fitting BLL models showed that boars maximized ADG at 3.63 g SID Lys/Mcal NE [95% confidence interval (CI): (3.32 to 3.94)], although another model with a similar fit, compared with the Bayesian information criterion, reported the optimum at 4.01 g SID Lys/Mcal NE [95% CI: (3.60, 4.42)]. The optimum to maximize ADG for gilts was estimated at 3.10 g SID Lys/Mcal NE [95% CI: (2.74, 3.47)]. Thus, the present study confirmed that boars and gilts have a different linear response to SID Lys:NE, explained by the greater protein deposition potential of boars. Likewise, BLL models indicated that boars require a higher SID Lys:NE to maximize ADG from 70 to 89 kg. These results suggest that split feeding of finishing boars and gilts could be beneficial in terms of both performance and cost return.

Net energy system of feed formulation with or without enzyme supplementation in growing-finishing pigs fed barley-based diets with alternative feed ingredients

2016 ◽  
Vol 96 (2) ◽  
pp. 180-186
Author(s):  
D.E. Velayudhan ◽  
C.M. Nyachoti
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Control Diet ◽  
Phase 1 ◽  
Carcass Characteristics ◽  
Net Energy ◽  
Finishing Pigs ◽  
Exogenous Enzyme ◽  
Enzyme Supplementation ◽  
Daily Gain

The aim of this study was to determine the growth performance and carcass characteristics of growing-finishing pigs fed diets formulated on net energy (NE) basis with or without exogenous enzyme supplementation. Twenty-four pigs with an initial body weight (BW) of 25 kg were randomly allotted one of three treatments; a barley-based control diet formulated on a digestible energy (DE) basis (Diet A), control diet formulated on an NE basis (Diet B), and Diet B + multicarbohydrase enzyme (Diet C). Pigs were offered their respective diets in a 3-phase feeding program. Individual pig BW and feed disappearance were monitored once every 2 wk. Pigs were slaughtered when they reached 100 kg BW to determine carcass characteristics. During phase 1, an improvement (P = 0.02) in feed intake was observed in pigs fed Diet C compared with Diet B. In phase 3, pigs fed Diet B showed improvement in daily gain (P = 0.02) and feed efficiency (P = 0.05) compared with Diet A. Overall, when compared with control diet, pigs fed Diet B showed significant improvement in daily gain (P = 0.05) and feed efficiency (P = 0.01). In conclusion, the results indicate a better growth performance with diets formulated using the NE system. Moreover, enzyme supplementation had no effect on the overall performance of pigs.

Effects of choice white grease and soybean oil on growth performance, carcass characteristics, and carcass fat quality of growing-finishing pigs

2011 ◽  
Vol 89 (2) ◽  
pp. 404-413 ◽  
Author(s):  
J. M. Benz ◽  
M. D. Tokach ◽  
S. S. Dritz ◽  
J. L. Nelssen ◽  
J. M. DeRouchey ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Growth Performance ◽  
Carcass Characteristics ◽  
Finishing Pigs ◽  
Fat Quality ◽  
White Grease

Effects of dietary soybean oil on pig growth performance, retention of protein, lipids, and energy, and the net energy of corn in diets fed to growing or finishing pigs1

2013 ◽  
Vol 91 (7) ◽  
pp. 3283-3290 ◽  
Author(s):  
D. Y. Kil ◽  
F. Ji ◽  
L. L. Stewart ◽  
R. B. Hinson ◽  
A. D. Beaulieu ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Growth Performance ◽  
Net Energy
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