Conjugated Linoleic Acid Changes Porcine Performance, Compositional and Meat Quality Characteristics PDF Download

Author: Bryon Robert Wiegand
Publisher:
ISBN:
Category :
Languages : en
Pages : 244

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Book Description
Feed efficiency was improved while 10th rib fat depth was decreased with CLA supplementation, regardless of genotype. Postmortem pH was lower at 3 h with CLA supplementation compared to control diet carcasses. Subjective marbling scores were significantly improved with CLA supplementation in the normal stress-free pigs. Loin chops from CLA fed pigs exhibited higher Hunter L* values over 7 d of self-service shelf storage compared to loin chops from control diet pigs. No differences were attributed to CLA supplementation for Hunter a* values or sensory panel characteristics. Results from these two experiments show that CLA supplementation can improve feed efficiency, decrease backfat, and improve certain aspects of meat quality in growing-finishing pigs at the level of 0.75% in the diet.

Author: Kevin Joseph Gassman
Publisher:
ISBN:
Category :
Languages : en
Pages : 150

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Beef rounds were physically separated into tissue components. Dissected rounds from CLA-fed steers contained a higher percentage of lean tissue (P

Author: Jean-Louis Sébédio
Publisher: The American Oil Chemists Society
ISBN: 9781893997288
Category : Medical
Languages : en
Pages : 354

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Book Description
Advances in Conjugated Linoleic Acid Research, Volume 2 is the second book in a series devoted entirely to conjugated linoleic acid. This book has updated information on the analysis, biochemistry and applications of conjugated fatty acids in an attempt to make Volume 2, in conjunction with Volume 1 (published in 1999), the most comprehensive, up-to-date sources of CLA-related information available today. Both scientific and commercial views are presented, with the same data sometimes interpreted differently.

Author: Lee I. Chiba
Publisher: John Wiley & Sons
ISBN: 1119583934
Category : Science
Languages : en
Pages : 757

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Book Description
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.

Author: Gwang-Woong Go
Publisher:
ISBN:
Category :
Languages : en
Pages :

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We hypothesized that supplementation of dietary conjugated linoleic acid (CLA) and arginine singly or in combination would increase animal performance and meat quality by decreasing adiposity and increasing lean mass in growing-finishing pigs. Sixteen pigs (80 kg) were assigned to four treatments in a 2 x 2 factorial design, differing in dietary fatty acid and amino acid composition [control: 2.05% alanine (isonitrogenous control) plus 1% canola oil (lipid control); CLA: 2.05% alanine + 1% CLA; arginine: 1% arginine + 1% canola oil; arginine + CLA: 1% arginine + 1 CLA]. Preliminary tests indicated that up to 2% arginine was acceptable without interfering with lysine absorption. Pigs were allowed to feed free choice until reaching 110 kg. There were no significant differences across treatments in feed intake, weight gain, or feed efficiency. CLA tended to decrease carcass length (P = 0.06), whereas backfat thickness tended to be greater in pigs supplemented with arginine (P = 0.08). Arginine decreased muscle pH at 45 min postmortem (P = 0.001) and tended to increase lightness of muscle at 24 h postmortem (P = 0.07). CLA supplementation increased the concentrations of trans-isomers of 18:1 (P = 0.001) and SFA (P = 0.01) in s.c. and r.p. adipose tissue. CLA supplementation increased palmitate incorporation into total lipids in longissimus muscle (P = 0.01). Glucose oxidation to CO2 in r.p. and s.c. adipose tissue were greater in pigs supplemented with CLA in the absence or presence of arginine (P = 0.03 and P = 0.04, respectively). The volume of s.c. adipocytes in s.c. and r.p. adipose tissues was greater in pigs supplemented with CLA, arginine, or CLA plus arginine than in control pigs (P = 0.001). Neither CLA nor arginine affected the expression of PGC-1[alpha], AMPK, mTOR, CPT-1A, FAS, or SCD (P> 0.05) in any tissues. We conclude that there was no significant interaction between arginine and CLA. Supplementary CLA or arginine to finishing-growing pigs did not modulate growth performance and did not reduce adiposity. CLA increased intramuscular fat content without deteriorating meat quality traits and increased saturated fatty acids and substrate oxidation in adipose tissues. In the presence of 1% of canola oil or CLA in the diet, arginine has the potential to deteriorate meat quality by reducing early postmortem pH and by increasing carcass fatness.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309224233
Category : Technology & Engineering
Languages : en
Pages : 420

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Book Description
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.

Author: Min Du
Publisher:
ISBN:
Category :
Languages : en
Pages : 196

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This dissertation includes studies on the effect of dietary CLA on the growth, fat accumulation and fatty acid status of chicken, and chicken meat quality as influenced by irradiation. Results showed that dietary CLA did not have significant effects on the growth rate and feed efficiency in chicken. And high levels of dietary CLA slightly reduced the whole body fat content. High ratio of dietary CLA can incorporate into chicken meat and egg yolk. Dietary CLA reduced the concentration of monounsaturated fatty acids. The concentration of polyunsaturated fatty acids, including arachidonic acid, linolenic acid and linolenic acid, also reduced as the dietary CLA level increased. However, when the dietary level of linolenic acid in diet was high, dietary CLA stimulated the synthesis of DHA and EPA, which might directly relate to the biological effects of CLA. High level of dietary CLA influenced the quality of meat, which was slightly harder and drier compared to the control meat. Dietary CLA significantly improved the oxidative stability of chicken meat. The reason for the improved oxidative and color stability of meat patties during storage should be due to the reduced unsaturated fatty acid content in chicken muscles, which improved lipid and color stability and reduced volatile production in both irradiated and nonirradiated meat during storage. Irradiation greatly increased the volatile production and induced a metal-like off-odor in chicken rolls, and dietary CLA had synergistic effect on this metal-like off-odor. Irradiation also increased the redness of chicken rolls. Consumers had a preference for the color of irradiated chicken rolls, while their reactions to the flavor of irradiated chicken rolls were quite negative.

Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 776

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Author: Peter P. Purslow
Publisher: Woodhead Publishing
ISBN: 0323858805
Category : Technology & Engineering
Languages : en
Pages : 918

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Book Description
New Aspects of Meat Quality, Second Edition continues to be the leading source of scientific information for what constitutes meat quality for consumers, marketers and producers in the 21st century. The book includes traditional measures of meat quality such as texture, water holding, color, flavor/aroma, safety/microbiology and processing characteristics as well as quality assurance schemes, organic/free range, ethical meat production, and the desirability of genetically modified organisms, amongst others. Users will find comprehensive coverage on developments in our understanding of how muscle structure affects the eating qualities of cooked meat, along with techniques for measuring, predicting and producing meat quality. In addition, the book covers how these new techniques help us minimize variability in eating quality and/or maximize value. The book's final section identifies the current qualities of consumer and public perceptions and what is sustainable, ethical, desirable and healthy in meat production and consumption. - Provides the latest research techniques and developments presented by top researchers in the field - Covers new aspects of meat quality with the same scientific authority as texts on traditional meat quality value - Includes five new chapters that cover the role of proteolysis, meat flavor, meat bi-products, and meat and public health

Author: M. C. Teale
Publisher: Nova Publishers
ISBN: 9781594546204
Category : Medical
Languages : en
Pages : 318

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Book Description
EPA and DHA omega-3 fatty acids are contained in oily fish, such as salmon, lake trout, tuna and herring. These fatty acids are not essential to the diet; however, scientific evidence indicates that these fatty acids may be very beneficial in reducing Coronary Heart Disease among other things. This book brings together some of the recent studies on this important and interesting substance.