Download or read book The Effects of Dietary Fatty Acids and Feeding Regime on the Growth Performance and Body Composition of Growing Pigs written by Stuart J. Wilkinson and published by . This book was released on 2011 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Dietary Fat Source and Feeding Duration on Pig Growth Performance and Fat Quality written by Ethan Wade Stephenson and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 3 experiments, 4,720 pigs were used to determine the effects of: 1) dietary fat and feeding duration on growth performance and fat quality in finishing pigs; or 2) a novel protease or 3) increasing levels of Zn amino acid complex (ZnAA) or ZnO on finishing pig performance. Experiment 1 tested the effects of feeding tallow, soybean oil, or a blend of the two for various feeding durations (d 0 to 42, 42 to 84, or 0 to 84). Overall, pigs fed added fat for the entire 84 d had improved G:F compared to those fed a control diet. Additionally, pigs fed additional fat for the entire study had improved ADG and G:F as well as increased d 84 BW compared to pigs fed additional fat for 42 d. Increasing the feeding duration of soybean oil lowered monounsaturated fatty acids and increased polyunsaturated fatty acid concentrations while these values remained relatively unchanged by the addition of tallow. There were feeding period by fat source interactions for fatty acid composition and iodine value for belly and backfat, but not jowl fat, indicating a longer turnover rate for jowl fat compared to belly or backfat. In Exp. 2, adding a protease to a nutrient deficient diet increased ADFI and tended to increase ADG compared to pigs fed a negative control diet. There were no differences observed in ADG, ADFI, or G:F between pigs fed a positive control diet, formulated to 90% of the pigs SID lysine requirement, and those fed a negative control diet plus the protease, which would suggest the release values attributed to the enzyme were accurate. In Exp. 3, supplementing additional Zn from either ZnAA or ZnO at 25, 50, or 75 ppm in finishing diets for commercial finishing pigs was evaluated. Overall, no differences were observed in ADFI, but a Zn source by level interaction was observed for ADG and G:F, as pigs fed increasing ZnO were observed to have similar performance, while pigs fed added levels of 25 and 50 ppm Zn from ZnAA had decreased performance compared to those fed the highest level of ZnAA.

Download or read book Effects of Dietary Fiber on the Growth Performance Carcass Characteristics and Carcass Fat Quality in Growing finishing Pigs written by Matthew Duane Asmus and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three experiments used 777 pigs to study the effects of fiber source; wheat middlings (midds), dried distillers grains with solubles (DDGS), and choice white grease (CWG), and reduction strategies for growing and finishing pigs. Also a fourth study utilizing 1,360 pigs was conducted to determine the effect of immunocastration (IC) and DDGS withdrawal on growth performance, carcass characteristics, fatty acid analysis, and iodine value (IV) of pork fat depots in growing and finishing pigs. Experiment 1 determined that the ingredient source of fiber (wheat middlings or DDGS) was more important than NDF level alone, for characterization of growth, carcass, and yield responses. Experiment 2 showed that a short (23 d) fiber reduction strategy was successful at fully recovering yield loss; however, a longer reduction (47 d) was necessary for further improvements in carcass fat quality (IV). Experiment 3 further proved that yield loss can be recovered with a short fiber reduction strategy (19 d), and that adding energy from CWG during the fiber reduction period can improve feed efficiency, but was unsuccessful at further improving carcass yield or carcass fat quality. Experiment 4 showed that carcass yield was lower for IC pigs than barrows regardless of dietary DDGS or withdrawal strategy. Also pigs fed 30% DDGS throughout had decreased carcass yield; however, withdrawing DDGS from the diet on d 74 was effective at recovering the yield loss. While DDGS withdrawal strategy was successful at lowering IV, but was unsuccessful at fully lowering IV to values of pigs fed the control diet throughout. Iodine values were somewhat variable within fat depot, showing the jowl and clear plate fat were less accurate in showing changes from the diet, most likely due to the fact they are deposited earlier and are slower to turnover. Iodine value tended to be greater for IC pigs than barrows on d 107, but by d 125 there were no differences in IV between IC and barrows. This dramatic improvement from d 107 to 125 could be caused by the dilution of unsaturated fatty acids, specifically C18:2 and C18:3, due to the rapid deposition of fat in IC pigs.

Download or read book Voluntary feed intake in pigs written by David Torrallardona and published by BRILL. This book was released on 2023-09-04 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding voluntary feed intake of pigs enables the precise formulation of pig feeds, ensuring the ingestion of sufficient but not excessive amounts of nutrients to optimise performance. This reference textbook, based on scientific results covers all aspects of feed intake in pigs. It contains up-to-date reviews by renowned scientific experts on different aspects affecting voluntary feed intake and diet selection in pigs. Different physiological factors involved in feed intake regulation, ranging from the sensorial evaluation of feeds, to the hormonal and metabolic regulation of feed intake and the impact of pig health are discussed. The book also deals with aspects such as genetic background of the animals, feeder design, feed manufacturing technology and the use of models to predict feed intake. This book is intended for academics, researchers, students and industry professionals involved in the field of pig nutrition and pig production.

Download or read book Improving Pig Performance and Nutrient Utilization by Manipulating Dietary Protein Level and Using Fermentable Fibre Ingredients written by Gaofeng He and published by . This book was released on 2004 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatty Acid Digestion Synthesis and Metabolism in Broiler Chickens and Pigs written by Willem Smink and published by . This book was released on 2012 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production Absorption and Metabolic Fate of Fatty Acids in Pigs Fed High fiber Diets written by SAYMORE PETROS. NDOU and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the use of agro-industrial co-products has significantly increased in pig diets resulting in increased dietary fiber. It is, however, intriguing that nutrient utilization and performance are depressed if pigs consume nutritionally balanced high-fiber diets that are composed of co-products plus supplementary fat. The first study indicated that addition of soluble fiber from Flaxseed meal (FM) and insoluble fiber from Oat hulls (OH) in pig diets increased intestinal VFA and BA contents but reduced fecal fat digestibility and induced variable effects on the histological characteristics, and composition and function of digesta- and mucosa-associated microbiota in gastrointestinal segments. Moreover, soluble fiber from FM depressed growth performance. The second study showed that soluble fiber from FM and insoluble fiber from OH reduced, ileal digested energy, FA digestibility, and absorption, gastrointestinal flows of FA and excretion of BA and both dietary fiber sources induced variable effects on digestibility of DF fractions, hindgut VFA production and fecal flows of unsaturated FA. The third study investigated the interactive effects of DF solubility and lipid type on digestibility of DF and FA, and flows of FA and BA in the ileum, cecum and colon, and VFA production and absorption in the cecum and colon of growing pigs. The production and absorption of VFA and DF fermentability in the cecum and colon was greater in pigs fed soluble fiber from Pectin compared to those fed insoluble fiber from Cellulose, and beef tallow supplementation depressed fermentation compared to corn oil. The interaction between DF solubility and lipid type modulates digestibility of lipids, flows of FA and BA and fermentability of DF fractions but differs for soluble and insoluble fiber, and saturated and unsaturated fatty acids. Lastly, the fourth study revealed that soluble from FM and insoluble fiber from OH increased the VFA uptake, and transportation and induced comparable effects on expressions of mRNA of colonic and hepatic genes involved in lipid metabolism. Taken together, soluble and insoluble fiber reduce fatty acids digestibility and induce variable effects on growth performance, intestinal fermentation, histomorphology, expression of genes involved in lipid metabolism and gastrointestinal microbiota composition.

Download or read book Fatty Acid Supply of Growing Pigs in Central Vietnam written by Linh Quang Nguyen and published by . This book was released on 2002 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Dietary Inclusion of Direct Fed Microbial on Growth Performance and Carcass Traits of Growing Finishing Pigs written by Ana Lucia Sevarolli Loftus and published by . This book was released on 2015 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Facts about fats written by J. Doppenberg and published by BRILL. This book was released on 2023-09-04 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fats and oils are more than 'just' energy sources for animal feeds. The fatty acids as part of triglycerides or in Fatty Acid products differ in chemical composition and physical characteristics. The omega-3 and specifically the LC-PUFA omega-3 fatty acids can be considered as functional nutrients. Via the feeding of different fats and differing fat additions body composition and animal products can be modified. The main use of fats and oils in the feed industry is however increasing the energy content of the feed economically. Therefore knowledge about the digestibility of the fat for each animal category, the metabolisible energy content and the efficiency with which this energy can be used for different production goals are of paramount importance for evaluating the fat source of choice. This book has summarized the presently available knowledge from the scientific literature and concluded with a model to estimate the energy content in practice.

Download or read book Recent Developments in Pig Nutrition written by D J A Cole and published by Elsevier. This book was released on 2013-10-22 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Developments in Pig Nutrition shows the updates in the nutrition and the evaluation of energy needs in raising and breeding pigs. The book covers the energy requirement of pigs; the effects of climatic variables on the nutrition and energy of pigs; and the prediction of energy content in pig feeds. The availability and importance of proteins and amino acids in pig feeds are also discussed. The text also explains the importance of vitamins and minerals in the diet of pigs; the nutritional needs of the different sexes of pigs and piglets; and the processing and evaluation of cereals for pig diets. The monograph is recommended for those in piggery business, who want to know more about the importance of pig nutrition and be updated with the different findings in the field. The book will also be good for animal nutritionists who concern themselves with pig feeds and for veterinarians who specialize in pigs.

Download or read book Influence of Conjugated Linoleic Acid Supplementation on Body Composition of Weaned Pigs written by Christina Espindola Lindsey and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross bred gilts (n=32), that were approximately 8 wk old with a mean BW of 16 kg, were used in a randomized complete block design to evaluate the effects of dietary supplementation of conjugated linoleic acid (CLA) on body composition of weaned, growing pigs. The pigs were blocked by weight and randomly assigned to a treatment group; control treatment group (n=8), 0.33% CLA (n=8), 0.66% CLA (n=8), and 1.0% CLA (n=8). Feed was distributed via self-feeders, ad libitum, and CLA supplementation was administered as an oral drench daily at 0600. Body weights were recorded every 7 d, 10th rib back fat thickness was measured every 14 d via ultrasonography, longissimus muscle area (LMA) was measured via ultrasonography on d 0, 42, and 84. Data was analyzed using the mixed procedure of SAS. There was no main effect of CLA supplementation on BW (P = 0.73), 10th rib back fat thickness (P = 0. 36) or LMA (P = 0.69); however, there was a difference in the 10th rib back fat thickness on d 70 and 84 of the trial. Pigs supplemented with 0.66% (P 9́Þ 0.02) and 1.0% (P 9́Þ 0.05) CLA had reduced back fat thickness compared to the control group. These data indicate that CLA supplemented at varying rates for 84 d has no effect on BW or LM, but may reduce back fat thickness measured at the 10th rib. Further studies are needed to explore the effects of dietary supplementation of CLA on body composition of growing, weaned pigs. The electronic version of this dissertation is accessible from http://hdl.handle.net/20.500.11875/2188

Download or read book Agrindex written by and published by . This book was released on 1994 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of the Pig written by G. R. Hollis and published by Oxford University Press, USA. This book was released on 1993 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth regulation with particular reference to the pig; Physiology andprincipled of muscle growth; Endocrine regulation of porcine adipose tissue development: cellular and metabolic aspects; Mapping genes for growth and development; The physical environment and swine growh; Why sick animals don't grow: an immunological explanation; Nutrition and growth: the concept and application of an ideal protein for swine growth; Evaluating pork carcasses composition and quality; Strategies for improving swine growth; Use of exogenous agents to regulate growth composition; Factors affecting the eating quality of pork.

Download or read book Effects of Pantothenic Acid on the Growth Performance and Body Composition of Growing finishing Pigs written by Crystal Noel Groesbeck and published by . This book was released on 2004 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Dietary Fatty Acids Polyunsaturated saturated Ratios and Fat Levels on Growth and Mineral Deposition in Young Male Rats written by Deborah M. D'Souza and published by . This book was released on 1990 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metabolic Modifiers written by National Research Council and published by National Academies. This book was released on 1994-02-01 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, animal scientists have learned that administering recombinantly derived somatotropin (growth hormone) to cows improves milk production and that giving beta-adrenergic agonists to meat animals improves productivity and leanness. In order for these metabolic modifiers to yield benefits, however, sound management of the animals' nutrition is necessary. This volume reports on how these substances work in the animals' metabolism, what effects they might have on nutrient requirements of domestic livestock, and what information should be developed further by investigators. The book explores the current understanding of the biology, structure, mechanisms of action, and treatment effects of somatotropin, beta-adrenergic agonists, and anabolic steroids. A companion volume to the Nutrient Requirements of Domestic Animals series, this authoritative volume will be required reading for animal scientists, researchers, veterinarians, livestock farmers, and faculty and students in university animal veterinary science programs.