Author: Atta Kofi AgyekumPublisher:
ISBN:
Category :
Languages : en
Pages : 264
Book Description
Performance -- Nutrient digestibility -- DDGS -- Portal-drained viscera -- Pigs.
Growth Performance, Nutrient Digestibility, Organ Mass and Whole-body Oxygen Consumption in Growing Pigs Fed Distillers Dried Grains with Solubles (DDGS)-containing Diets Supplemented with a Multicarbohydrase Enzyme
Author: Atta Kofi AgyekumPublisher:
ISBN:
Category :
Languages : en
Pages : 264
Book Description
Performance -- Nutrient digestibility -- DDGS -- Portal-drained viscera -- Pigs.
Growth Performance, Nutrient Digestibility, Organ Mass and Whole-body Oxygen Consumption in Growing Pigs Fed Distillers Dried Grains with Solubles (DDGS)-containing Diets Supplemented with a Multicarbohydrase Enzyme
Author: Atta K. AgyekumPublisher:
ISBN: 9780494846346
Category :
Languages : en
Pages :
Book Description
The Influence of Feeding Diets Containing Corn Dried Distillers Grains with Solubles (DDGS) to Grower-finisher Pigs on Growth Performance, Carcass and Pork Quality
Author: Guowu XuThe Effects of Low-, Medium-, and High-oil Dried Distillers Grains with Solubles (DDGS) on Growth Performance, Nutrient Digestibility, and Fat Quality in Finishing Pigs
Author: Amanda Brooke GrahamPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Three experiments used 1,756 pigs to evaluate the effects of corn dried distillers grains with solubles (DDGS) varying in oil content on growth performance, carcass characteristics, and fat quality in growing-finishing pigs. A fourth experiment used 12 pigs and determined the energy concentration and nutrient digestibility of the DDGS sources used in the previous 3 growth studies. Lastly, a fifth experiment used 576 pigs to determine the effects of DDGS and wheat middlings (midds) withdrawal 24 d before harvest in diets without or with ractopamine HCl (RAC) on growth performance, carcass characteristics, fat quality, and organ/intestine weights. Experiment 1 determined that increasing 7.4% oil DDGS decreased (linear, P
Nutrient Absorption and Energy Expenditure in Growing Pigs Fed High-fiber Diets Supplemented with Enzymes
Author: Atta Kofi AgyekumPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Fiber-rich (HF) diets are typically supplemented with enzymes to improve their nutritive value and to offset their negative effects on pig growth. However, studies on enzyme effect in pigs have yielded inconsistent results on nutrient digestibility and growth. Although the inconsistencies observed could be explained by differences in substrate and experimental conditions and enzyme characteristics among studies, how enzymes influence metabolic and physiological responses in pigs is still not clear. Therefore, three experiments were conducted, using 3 dietary treatments (control, HF and HF diet supplemented with enzymes), to elucidate the effects of supplementing an HF diet with enzymes in growing pigs. Experiment one investigated HF and enzyme supplementation on energy and nutrient digestibility, digesta volatile fatty acid (VFA) concentrations, and gut microbial profile in pigs. Compared with the HF diet, enzymes improved dry matter, starch, energy and some amino acid (AA), but not nitrogen digestibility. Further, the enzymes stimulated the growth of gut bacterial groups, which have xylanolytic and cellulolytic properties in the HF-fed pigs, but enzymes did not influence digesta VFA concentration or fiber fermentation. Experiment 2 evaluated the effects of enzyme supplementation on growth performance, glucose uptake in jejunum tissue samples mounted in Ussing chambers, and intestinal nutrient transporter mRNA levels in pigs. Diet had no effect on feed intake and jejunal glucose uptake. The enzymes influenced nutrient transporter mRNA levels but did not improve pig growth rate and feed efficiency relative to the HF diet. The third experiment investigated the effect of supplementing the HF diet with enzymes on postprandial portal vein-drained viscera (PDV) nutrient fluxes and energy expenditure (measured as O2 consumption) by the PDV and whole-animal in pigs. Diet had no effect on energy expenditure. The HF diet reduced portal glucose, VFA and essential AA absorption and insulin production. Enzyme supplementation improved portal glucose and VFA absorption, but not essential AA absorption and insulin production. Overall, improvements in nutrient utilization due to enzyme supplementation did not improve the growth rate of pigs, which appears to be due to the lack of enzyme effect on essential AA and energy use by the PDV and insulin production.
Digestibility of Energy and Nutrients in Distillers Dried Grains with Solubles Fed to Growing Pigs
Author: Evaluation of Pig Body Weight Variation, Amino Acid Levels, and Distillers Dried Grains with Solubles on Pig Performance
Author: Andres Fernando Tolosa RussiPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The 3 chapters of this thesis involve 1) a meta-analysis of pig body weight (BW) variation from birth to market, 2) a study evaluating reducing digestible lysine (Lys) and tryptophan to lysine ratio (Trp:Lys) in the diet for pigs as a nutritional strategy to slow down pig growth due to the COVID-19 pandemic, and 3) a study evaluating growth performance of pigs fed a diet with or without distillers dried grains with solubles (DDGS) with increased digestible threonine (Thr). Chapter 1 describes a meta-analysis of the literature to develop prediction equations for coefficient of variation (CV) and standard deviation (SD) as a function of pig BW from birth to market. The results indicate that there is a quadratic decreasing relationship between the CV of the population and pig BW, where the slope of decrease becomes smaller as mean pig BW increases from birth to market. A quadratic increase for the relationship is also observed for SD, in which the slop becomes smaller as pig mean BW increases from birth to market. Chapter 2 describes an experiment that aimed to slow-down pig growth during the COVID-19 pandemic, due to processing plant shutdowns, by decreasing standardized ileal digestible (SID) Lys and SID Trp:Lys ratio in the diet. The results of this study indicate that reducing SID Lys from 100 to 80% of the pigs' requirement and formulating diets with 16% SID Trp:Lys during the grow-finish period decreased growth performance and feed efficiency, and consequently, final BW was reduced by 8.6 and 11.7 kg after 119 days of consuming the reduced SID Lys or SID Trp:Lys diet, respectively. Chapter 3 utilized 2,160 pigs to determine if increasing SID Thr:Lys in the diet is needed to optimize the growth performance of grow-finish pigs when DDGS is also included in the diet. The results indicate that pigs fed a diet with DDGS had reduced growth performance regardless of the level of digestible Thr in the diet. This study used DDGS, which is a source of insoluble fiber, therefore, different results may occur if a soluble fiber source is provided.
Nutritional Strategies to Improve Gastro-intestinal Health in Swine
Author: Mark Howard WhitneyEffects of Dietary Enzymes Or Specialty Proteins on Nursery Pig Performance
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Eight experiments used 1,712 pigs to determine influences of dietary enzymes or specialty proteins on nursery pig performance. Experiments 1 and 2 evaluated the effects of fish meal, fermented soybean meal, or dried porcine solubles on performance. Experiment 1 showed pigs fed dried porcine solubles had improved (P = 0.01) ADG and G:F compared to pigs fed the control diet, and improved (P = 0.03) G:F compared to pigs fed the combination of fermented soybean meal and fish meal. Experiment 2 showed pigs fed increasing fermented soybean meal had improved (quadratic, P = 0.03) G:F. Experiments 3 and 4 evaluated the effects of commercial enzyme addition to diets containing dried distillers grains with solubles (DDGS) on performance. In experiment 3, neither DDGS nor enzyme addition influenced (P> 0.10) ADG and G:F. Experiment 4 found there were no (P> 0.32) enzyme x DDGS source interactions. Corn DDGS did not influence pig performance (P> 0.36). Sorghum DDGS reduced (P = 0.003) G:F, with no difference between sorghum DDGS sources. Adding enzymes to 30% DDGS diets did not improve (P> 0.57) performance. Experiments 5 and 6 evaluated the effects of fish meal (SMFM), spray-dried animal plasma (SDAP), or peptone on performance. In Experiment 5, different specialty proteins had similar (P> 0.10) ADG, ADFI, or G:F. Experiment 6 showed pigs fed 4% Peptone 2 during phase 1 and 2% Peptone 2 during phase 2 had improved (P
The Effects of Fumonisin and High Protein Dried Distillers Grain on Pig Growth Performance
Author: Zhong-Xing RaoPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Experiment 1 used a total of 350 pigs to determine the effects of increasing fumonisin concentration from 7.2 to 35.1 mg/kg on nursery pig growth performance and serum sphinganine (SA) to sphingosine (SO) ratio. Experiments 2 and 3 used a total of 650 pigs to determine the efficacy of various commercial products on growth performance and serum SA:SO ratios of nursery pigs fed high fumonisin diets. Experiment 4 used a total of 1,890 pigs to determine the effects of pigs fed diets with high-protein dried distillers grains (HPDDG) or conventional dried distillers grains with solubles (DDGS) on growth performance and carcass characteristics. Experiment 1 determined that increasing fumonisin concentration linearly reduced growth performance and final BW, and linearly increased serum SA:SO ratios. These results demonstrate that for 20- to 60-lb nursery pigs, diets containing greater than 32.7 mg/kg of fumonisin should be avoided, as increasing fumonisin concentration worsens growth performance and serum SA:SO ratio. In Exp. 2 and 3, growth performance and serum SA:SO ratios were improved in pigs fed high fumonisin diet with Biofix Select Pro, but not with Kallsil Dry or Feed Aid Wide Spectrum. The improvement in serum SA:SO ratios with Biofix Select Pro was only found in pigs fed 30 mg/kg of fumonisin (Exp. 3), but not 60 mg/kg (Exp. 2). In Exp. 4, there were no differences observed in ADG between pigs fed either DDG sources. Increasing either conventional DDGS or HPDDG decreased carcass yield and HCW; however, there were no differences between pigs fed HPDDG or conventional DDGS. Iodine value (IV) increased with increasing either DDG sources, and was greater in pigs fed HPDDG than conventional DDGS, which was probably due to the difference in oil content.