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Effect Of Protein And Lysine On The Growth Performance And Carcass Composition Of Finishing Pigs Fed Ractopamine
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Book Synopsis Effect of Protein and Lysine on the Growth Performance and Carcass Composition of Finishing Pigs Fed Ractopamine by : Rodney Stephen Ott
Download or read book Effect of Protein and Lysine on the Growth Performance and Carcass Composition of Finishing Pigs Fed Ractopamine written by Rodney Stephen Ott and published by . This book was released on 1990 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improving Pig Performance and Nutrient Utilization by Manipulating Dietary Protein Level and Using Fermentable Fibre Ingredients by : Gaofeng He
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:
Book Synopsis Effects of Dietary Lysine on Muscle Gene Expression and Fatty Acid Profiles and on Selected Carcass Characteristics and Plasma Hormone Concentrations in Late-stage Finishing Pigs by : Taiji Wang
Download or read book Effects of Dietary Lysine on Muscle Gene Expression and Fatty Acid Profiles and on Selected Carcass Characteristics and Plasma Hormone Concentrations in Late-stage Finishing Pigs written by Taiji Wang and published by . This book was released on 2016 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dietary inclusion of sufficient lysine is very critical for optimizing pig’s growth performance. The objectives of this project were to study the effects of dietary lysine at different concentrations on (1) the growth performance and carcass characteristics, (2) the muscle gene expression profile and the possible alterations to the metabolic and signaling pathways, (3) the muscle fatty acid profile, and (4) the plasma concentrations of growth-related hormones of late-stage finishing pigs. Nine crossbred barrows were assigned to 3 dietary treatments (lysine-deficient, -adequate, and -excess diets) according to a completely randomized experimental design. During the 5-week feeding trial, pigs were allowed ad libitum access to experimental diets and water. All pigs and experimental diets were weighed individually each week during feeding trial to determine growth performance. After harvest, the carcass characteristics were determined and muscle samples were collected from longissimus dorsi for mRNA and fatty acid profiling, while the jugular vein blood was collected at the end of four weeks for analyses of three growth-related hormones. While the average daily gain showed a quadratic relationship, the dressing percentage and total lean cut weight both increased linearly with dietary lysine concentrations. Results of muscle gene expression data showed that dietary lysine deficiency may lead to decreased protein synthesis, increased protein degradation and lipid accumulation, while dietary lysine excess may lead to decreased protein degradation and increased lipid biosynthesis. Fatty acid (FA) composition data showed that different dietary lysine concentrations altered the intramuscular fat (IMF) content and FA composition, especially the unsaturated FAs. In particular, dietary lysine deficiency increased the IMF content and the proportion of mono-unsaturated FAs. Hormone analyses showed that the plasma concentrations of insulin and growth hormone were not affected by dietary lysine, whereas the concentration of insulin-like growth factor 1 was decreased by either dietary lysine deficiency or excess. Collectively, lysine may function as a signaling molecule to regulate the expression of genes related to protein turnover and lipid metabolism in the muscle of finishing pigs, causing differences in growth performance, carcass characteristics, and FA composition. IGF-1 may be a controlling growth factor that is sensitive to dietary lysine.
Book Synopsis Effect of Recombinant Porcine Somatotropin (rpST) and Dietary Crude Protein Concentration on Lipid Metabolism and Carcass Composition of Finishing Pigs by : Scott Allen Kramer
Download or read book Effect of Recombinant Porcine Somatotropin (rpST) and Dietary Crude Protein Concentration on Lipid Metabolism and Carcass Composition of Finishing Pigs written by Scott Allen Kramer and published by . This book was released on 1991 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Low Crude Protein, Amino Acid Fortified Diets and Neutral Detergent Fiber on Finishing Pig Performance by : Jose Alfredo Soto Gonzalez
Download or read book Effects of Low Crude Protein, Amino Acid Fortified Diets and Neutral Detergent Fiber on Finishing Pig Performance written by Jose Alfredo Soto Gonzalez and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Eleven experiments using 5,434 growing-finishing pigs were performed in addition to the development of a model to predict dietary NE that yields the greatest economic benefit. Two experiments were conducted to determine the effect of dietary phytogenics on growth and carcass performance of growing-finishing pigs. The addition of the combination of two phytogenics products (EOM 1+2) to diets improved ADFI, HCW, and carcass ADG. However, there was no evidence for treatment differences for growth or carcass performance in a second study. Two experiments were conducted to determine the effects of feeding high SID Trp:Lys ratios with and without Ractopamine HCl (RAC) on growth and carcass characteristics of finishing pigs. In Exp. 1, whereas increasing SID Trp:Lys ratio above 20% improved growth and carcass performance when diets contained RAC, pigs fed SID Trp:Lys ratios above 20% in diets without RAC had reduced growth and carcass performance. Contrary in Exp. 2, pigs fed increasing SID Trp:Lys in diet containing RAC did not provide further performance benefits. Three experiments were conducted to determine the optimum dietary SID Lys and CP concentrations in finishing pigs over 100 kg. The SID Lys requirement to obtain 100% of maximum response was 0.55 to 0.63% depending on the response variable. Growth and carcass performance was maximized in diets containing at least 12% dietary CP. Four experiments were conducted to determine the effects of SBM concentration and whether dEB, choline, or K are the reasons that performance is reduced when pigs over 100 kg BW are fed low CP diets. Performance was reduced as SBM concentration was reduced in the diet. Choline, K, and dEB do not appear to be the reason that performance is reduced when SBM concentration is decreased in low CP diets fed to pigs over 100 kg BW. A Microsoft Excel®-based model to predict the value of dietary NE that yields the greatest economic return to the production system was developed. Furthermore, a meta-analysis was conducted to incorporate the impact of NDF on carcass yield in the model.
Book Synopsis Proceedings - Cornell Nutrition Conference for Feed Manufacturers by :
Download or read book Proceedings - Cornell Nutrition Conference for Feed Manufacturers written by and published by . This book was released on 1991 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Protein Quality and Supplementation of Swine Rations with Lysine and Tryptophan Upon Nitrogen Metabolism, Growth and Carcass Composition of Swine by : Donald Harris Kropf
Download or read book The Effect of Protein Quality and Supplementation of Swine Rations with Lysine and Tryptophan Upon Nitrogen Metabolism, Growth and Carcass Composition of Swine written by Donald Harris Kropf and published by . This book was released on 1957 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1957 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Porcine Somatotropin Administration Period and Dietary Lysine on Growth Performance and Carcass Characteristics of Finishing Pigs Fed to 127 Kg by : Michael Evan Johnston
Download or read book The Effect of Porcine Somatotropin Administration Period and Dietary Lysine on Growth Performance and Carcass Characteristics of Finishing Pigs Fed to 127 Kg written by Michael Evan Johnston and published by . This book was released on 1992 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Reducing Dietary Protein Level and Adding Amino Acids on Performance, Carcass Characteristics, and Nitrogen Excretion of Finishing Pigs by : Haijun Liu
Download or read book Effect of Reducing Dietary Protein Level and Adding Amino Acids on Performance, Carcass Characteristics, and Nitrogen Excretion of Finishing Pigs written by Haijun Liu and published by . This book was released on 2000 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of eight experiments utilizing 572 finishing pigs were conducted to evaluate the effect of reducing dietary protein level and adding amino acids on pig performance, carcass characteristics, and N excretion. The valine requirement of early-finishing (50 to 80 kg) barrows and the effect of adding isoleucine (Ile) and valine (Val) in amino acids fortified low-protein diets on finishing pig performance were also evaluated. In the first experiment (Exp. 1 of Chapter II), it was determined that the CP level in the diet for early-finishing (50 to 80 kg) gilts can be reduced up to four percentage units by adding Lys, Thr, Trp, and Met, with no detrimental effect on pig performance or carcass characteristics. The second study (Exp. 2 of Chapter II) indicates that Ile and/or Val may be limiting in a four-percentage-unit-protein-reduced diet for late-finishing (80 to 120 kg) gilts. The third experiment (Exp. 1 of Chapter III) indicates that the true digestible Lys requirement of early-finishing PIC barrows is not higher than 0.70%. In the fourth experiment (Exp. 2 of Chapter III), it was demonstrated that dietary protein level for early-finishing PIC barrows can be reduced up to five percentage units by adding Lys, Thr, Trp, Met, and Ile, with no detrimental effect on pig performance or carcass characteristics. Valine was not limiting in a 10.49% CP diet for early-finishing PIC barrows with ADFI of 3.1 kg/d, and the true digestible Val requirement of early-finishing PIC barrows gaining 1.0 kg/d, was not greater than 11.4 g/d. In the fifth experiment (Exp. 3 of Chapter III), we found that decreasing dietary protein level by 4.81 percentage units and adding amino acids to the diet reduced N excretion of early-finishing barrows by 40.6%. In the sixth experiment (Exp. 4 of Chapter III), it was determined that the dietary protein level for early-finishing barrows can be reduced up to four percentage units by adding Lys, Thr, Trp, and Met, with no detrimental effects on pig performance or carcass characteristics, and reducing dietary protein level by four percentage units can reduce N excretion by 38.4%. In the seventh experiment (Exp. 1 of Chapter IV), it was determined that late-finishing barrows fed an amino acid (Lys, Thr, Trp, Met, Ile, and Val) fortified corn diet (7.92% CP) have similar performance and carcass characteristics as pigs fed a corn-soybean meal control 12.50% CP diet. Deleting Ile or Val in an amino acids fortified corn diet may decrease pig performance. In the eighth experiment (Exp. 2 of Chapter IV), it was determined that late-finishing gilts fed an amino acid (Lys, Thr, Trp, Met, Ile, and Val) fortified corn diet (9.55% CP) have similar performance and carcass characteristics as pigs fed a corn-soybean meal control 15.17% CP diet. Decreasing dietary CP level from 15.17 to 9.55% decreases N excretion of late-finishing pigs by 48.28%. Deleting Ile or Val in an amino acid fortified corn diet may decrease pig performance. In summary, finishing pigs fed a low protein diet properly fortified with crystalline amino acids can have similar performance and carcass characteristics as pig fed typical protein level corn-soybean meal control diets, and N excretion will be greatly reduced.
Book Synopsis Nutrient Requirements of Swine by : National Research Council
Download or read book Nutrient Requirements of Swine written by National Research Council and published by National Academies Press. This book was released on 2012-08-02 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1944, the National Research Council has published 10 editions of the Nutrient Requirements of Swine. This reference has guided nutritionists and other professionals in academia and the swine and feed industries in developing and implementing nutritional and feeding programs for swine. The swine industry has undergone considerable changes since the tenth edition was published in 1998 and some of the requirements and recommendations set forth at that time are no longer relevant or appropriate. The eleventh revised edition of the Nutrient Requirements of Swine builds on the previous editions published by the National Research Council. A great deal of new research has been published during the last 15 years and there is a large amount of new information for many nutrients. In addition to a thorough and current evaluation of the literature on the energy and nutrient requirements of swine in all stages of life, this volume includes information about feed ingredients from the biofuels industry and other new ingredients, requirements for digestible phosphorus and concentrations of it in feed ingredients, a review of the effects of feed additives and feed processing, and strategies to increase nutrient retention and thus reduce fecal and urinary excretions that could contribute to environmental pollution. The tables of feed ingredient composition are significantly updated. Nutrient Requirements of Swine represents a comprehensive review of the most recent information available on swine nutrition and ingredient composition that will allow efficient, profitable, and environmentally conscious swine production.
Download or read book Abstracts of Proceedings written by and published by . This book was released on 1992 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Swine Nutrition by : Lee I. Chiba
Download or read book Sustainable Swine Nutrition written by Lee I. Chiba and published by John Wiley & Sons. This book was released on 2022-10-26 with total page 757 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Swine Nutrition As climate change continues to have a significant impact on the modern world, it is crucial to find alternative sources of energy and nutrients for swine production. The development of optimal feeding revolves around a multitude of considerations—genetic variations in the pig, variability, availability, and stability of nutrients in feed ingredients, interactions among nutrients and non-nutritive factors, voluntary feed intake, physical (& social) environment of pigs, and more. Establishing the ideal network of factors will only grow in importance as humans assess the methods for our own food networks. Sustainable Swine Nutrition is a comprehensive book on swine nutrition, covering some fundamental aspects of nutrition—namely digestive physiology, water, protein or amino acids, lipids, carbohydrates, energy metabolism, vitamins, minerals, and nutrition and immunology. Providing the most up-to-date information on each of these areas, a major emphasis of this second edition is on recent developments and current advances in the field, with a focus on pertinent issues linked with energy and nutrients. In doing so, the book highlights topics and issues that can contribute to the ultimate goal of successful and sustainable swine production. Sustainable Swine Nutrition readers will also find: Environmentally friendly, optimal feeding strategies for successful and sustainable swine production Recent developments, such as alternative feedstuffs, feed additives, and bioavailability Expanded treatment and new chapters on swine physiology, energy and protein, technology, and more Sustainable Swine Nutrition, Second Edition, is an ideal resource for livestock scientists and industry professionals involved in all aspects of pork production.
Book Synopsis Recent Developments in Pig Nutrition 2 by : Philip C. Garnsworthy
Download or read book Recent Developments in Pig Nutrition 2 written by Philip C. Garnsworthy and published by Hyperion Books. This book was released on 1993 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in consumer perceptions of meat quality; Nutritional manipulation of carcass quality in pigs; Consequences of changes in carcass composition on meat quality; Energy-protein interactions in pigs; Comparison of arc and nrc recomended requirements for energy and protein in growing pigs; Amino acid nutrition of pigs and poultry; Methods of determining the amino acid requirements of pigs; Ileal digestibilities of amino acid in pig feeds and their use in formulating diets; Use of synthetic amino acids in pig and poultry diets; Towards an improved utilization of dietary amino acids by the growing pig; Role of dietary fibre in pig feeds; Phosphorus availability and requirements in pigs; The water requirement of growing-finishing pigs - theoretical and practical considerations; Water for piglets and lactating sows: quantity, quality and quandaries; The phisiological basis of electrolyes in animal nutrition; Manipulation of the gut environment of pigs; Acidification of diets for pigs; Aetiology of diarrhoea; Immunity, nutrition and performance in animal production; Novel approaches to growth promotion in the pig; Impact of somatotropin and beta-adrenergic agonists on growth, carcass composition and nutrient requirements of pigs; Strategies for sow nutrition: predicting the response of pregnant animals to protein and energy intake; Predicting nuttrient responsesof the lactating sow; Nutrition of the working boar.
Book Synopsis The Effect of Feeding Ractopamine on Growth Performance, Carcass Composition, Meat Quality and Cortisol Concentration in Purebred Berkshire Swine by : Katherine Suzanne Betts
Download or read book The Effect of Feeding Ractopamine on Growth Performance, Carcass Composition, Meat Quality and Cortisol Concentration in Purebred Berkshire Swine written by Katherine Suzanne Betts and published by . This book was released on 2011 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The study evaluated the effects of a 28 d pre-harvest ractopamine (RAC) feeding program on average daily gain (ADG), feed conversion efficiency (FC), backfat (BF) and loin muscle area (LMA), pork loin quality, and cortisol concentration in purebred Berkshire pigs (n = 117) utilizing a randomized complete block design with three treatments (Control (C), 0 ppm; RAC5, 5.0 ppm; RAC10; 10 ppm) in four replicates. Litter-mate pigs were randomly assigned to each of the three treatments within a replicate. Ultrasonic BF and LMA, pig weight, and salivary cortisol concentrations were measured at days 0, 7, 14, 21, and 28 of the feeding period. Blood was collected during harvest at exsanguination for plasma cortisol measurements. Carcass composition and pork quality (NPPC, 2000; visual color, marbling, firmness, and wetness and instrumental measures of ultimate pH and Minolta L*, a*, and b* were assessed at 24h post-harvest. Mixed model procedures of SAS were used in analyses. Fixed effects were treatment, sex, and a treatment x sex interaction, with sex and interaction effects removed if not significant (P> 0.10). Random effects included replication and litter nested within replication. Individual ADG was greater (P
Book Synopsis Interactive Effects Between Ractopamine Hydrochloride and Dietary Lysine on Finishing Pig Growth Performance, Carcass Characteristics, and Tissue Accretion by : Michael James Webster
Download or read book Interactive Effects Between Ractopamine Hydrochloride and Dietary Lysine on Finishing Pig Growth Performance, Carcass Characteristics, and Tissue Accretion written by Michael James Webster and published by . This book was released on 2001 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Animal Science written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
