Download or read book Methionine and Cystine Requirements of the Growing Broiler written by Antonio Kalinowski and published by . This book was released on 2003 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Amino Acid Maintenance and Growth Requirements of Male Broilers written by Milan Hrubý and published by . This book was released on 1998 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amino Acids in Nutrition and Health written by Guoyao Wu and published by Springer Nature. This book was released on 2021-03-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amino acids (AAs) are not only building blocks of protein, but are also signalling molecules as well as regulators of gene expression and the protein phosphorylation cascade. Additionally, AAs are key precursors for syntheses of hormones and low-molecular weight nitrogenous substances with each having enormous biological importance. For example, physiological concentrations of AA metabolites (e.g., nitric oxide, polyamines, glutathione, taurine, thyroid hormones, and serotonin) are required for cell functions. Growing evidence shows that humans and animals have dietary requirements for all proteinogenic AAs. Mammals, birds and fish also have species- and age-dependent needs for some AA-related substances. However, elevated levels of other products (e.g., ammonia, homocysteine, H2S, and asymmetric dimethylarginine) are pathogenic factors for neurological disorders, oxidative stress, and cardiovascular disease. Thus, optimal amounts of AAs and their ratios in diets and circulation are crucial for whole body homeostasis and health. Adequate provision of one or a mixture of functional AAs or metabolites may be beneficial for ameliorating health problems at various stages of the life cycle (e.g., fetal growth restriction, neonatal morbidity and mortality, weaning-associated intestinal dysfunction and wasting syndrome, obesity, diabetes, cardiovascular disease, the metabolic syndrome, and infertility). Dietary supplementation of these nutrients can also optimize the efficiency of metabolic transformations to enhance muscle growth, milk production, and athletic performance, while preventing excess fat deposition and reducing adiposity. Therefore, functional AAs hold great promise in improving the growth, health and well-being of individuals. Chapter 7 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Determination of Methionine and Lysine Requirements of Growing Broilers Using the Ideal Protein Concept written by Changji Lu and published by . This book was released on 2012 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three experiments were conducted to evaluate the responses of broiler performance to Lysine (Lys) and Methionine (Met) during the starter, grower, and finisher feeding phases. All the experimental diets were formulated based on the Ideal Protein Concept. Experiment 1 evaluated the responses to Lys and Met on live performance of young broiler chickens from 0 to 18 d of age. The mean amino acid ratios to Lys suggested by literature values were used in the formulation based on the Ideal Protein Concept. Six levels of Lys and eight levels of supplemental Met were used in the diets resulting in a total of 48 experimental treatments. There were significant effects of Lys levels and added Met levels on feed intake (FI), body weight (BW) and feed conversion ratio (FCR) ( P≤0.05). Significant interactions were also observed between Lys and added Met in response to these parameters (P≤0.05). There were differences in the estimated ratios of Met or total sulfur amino acids (TSAA) to Lys required for optimizing FI, BW, and FCR for chicks fed different Lys levels. These results indicated that the optimal ratios of indispensable amino acids to Lys may depend on dietary Lys level in the diet. Experiment 2 evaluated the response to Lys and Met in diets on live performance of young broiler chickens during the grower period of 14-35 d. Experimental diets were designed similarly as the experiment 1 with six levels of Lys and eight levels of supplemental Met. Two consecutive trials using the same experimental diets were conducted with identical design. There were significant effects of dietary Lys levels on FI, BW and FCR (P≤0.05), with optimal Lys level for FI, BW and FCR of 1.20, 1.10 and 1.12, respectively. There were significant effects of added Met levels on BW and FCR (P≤0.05). No significant interactions between Lys and Met were observed based on FI, BW and FCR. There were differences in the estimated ratios of Met or TSAA to Lys required for optimizing FI, BW, and FCR for broiler chickens fed different Lys levels. Results of this study suggest that the response to variation in Lys level is independent of Met level and optimal ratio of Met or TSAA to Lys varies with different dietary Lys level in the diets. Experiment 3 was conducted to evaluate the response to Lys and Met in diets on live performance of broiler chickens during the finisher period of 35-49 d. Similar design as the previous two experiments was used with six levels of Lys and four levels of supplemental Met. There were significant effects of dietary Lys levels on body weight gain (BWG) and FCR, with optimal Lys level for BWG and FCR of 1.01 and 1.05, respectively. There was a significant effect of supplemental Met on FCR. No significant interactions were observed between Lys and supplemental Met for FI, BWG, and FCR. Increasing Lys level significantly improved dressing percentage and breast meat yield. There were differences in the estimated ratios of Met or TSAA to Lys required for optimizing FI, BWG, and FCR for broiler chickens fed different Lys levels. Results of this study suggest that the response to variation in Lys level is independent of Met level in broiler finisher diets and that the ideal amino acid profile may depend on the Lys level in the diets. In conclusion, the ideal ratios of Met and TSAA to Lys based on the Ideal Protein Concept vary for broiler chickens fed different Lys level in the diets at each of the growing phases.
Download or read book Nutrient Requirements of Poultry written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference for poultry nutrition has been updated for the first time since 1984. The chapter on general considerations concerning individual nutrients and water has been greatly expanded and includes, for the first time, equations for predicting the energy value of individual feed ingredients from their proximate composition. This volume includes the latest information on the nutrient requirements of meat- and egg-type chickens, incorporating data on brown-egg strains, turkeys, geese, ducks, pheasants, Japanese quail, and Bobwhite quail. This publication also contains new appendix tables that document in detail the scientific information used to derive the nutrient requirements appearing in the summary tables for each species of bird.
Download or read book Interrelationships Between Dietary Arginine Methionine and Environmental Temperature Affect Growth and Creatine Biosynthesis in Young Broiler Chicks written by Marisa Chamruspollert and published by . This book was released on 2001 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cysteine in Broiler Poultry Nutrition written by Iyakutye Jacob Nte and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SAAs are limiting in the major poultry feed ingredients, ranking first and fifth in soya bean meal and maize, respectively. Feed ingredients rich in protein, in particular and other nutrients, enhance Energy supply and protein accretion. Modern commercial broilers have reduced maintenance needs and high amino acid requirements, and are more responsive to protein (amino acids) than energy. Cysteine is a semi-essential amino acid belonging to the SAAs. It plays essential roles in protein synthesis, structure and function, causing growth depressing effects in broiler chicks when there is methionine:cysteine imbalance. Genetically predetermined amino acid sequences in proteins are essential for production of adequate quantities of meat, milk and eggs. Therefore, ideal amino acid ratios which conform to the requirements of broilers should be utilized. In nutrition, amino acids are equivalent to proteins, hence the shift in focus from proteins to individual amino acids, expressed as ideal ratios to lysine. The SAAs are practically relevant and have critical nutritional roles in animal nutrition with over 90% production being used to fortify animal (particularly poultry) diets. A balance in the methionine:cysteine ratio is necessary to ensure efficient utilization of the SAAs for proper growth and development in broiler poultry.
Download or read book Commercial Poultry Nutrition written by S. Leeson and published by Nottingham University Press. This book was released on 2009-04-01 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a variety of essential topics relating to commercial poultry nutrition and production—including feeding systems and poultry diets—this complete reference is ideal for professionals in the poultry-feed industries, veterinarians, nutritionists, and farm managers. Detailed and accessible, the guide analyzes commercial poultry production at a worldwide level and outlines the importance it holds for maintaining essential food supplies. With ingredient evaluations and diet formulations, the study's compressive models for feeding programs target a wide range of commercially prominent poultry, including laying hens, broiler chickens, turkeys, ducks, geese, and game birds, among others.
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.
Download or read book Studies on the Folic Acid Choline and Methionine Requirements of Starting Broiler Chicks written by Kyeong Seon Ryu and published by . This book was released on 1994 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Computer Growth Models to Estimate Nutrient Requirements for Broilers written by Edgar Orlando Oviedo-Rondón and published by . This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Methionine and Labile Methyl Group Requirements of Poultry written by Gene Michael Pesti and published by . This book was released on 1980 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amino Acids in Nutrition and Health written by Guoyao Wu and published by Springer Nature. This book was released on 2020-08-06 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume comprehensively highlights recent advances in the metabolism, nutrition, physiology, and pathobiology of amino acids in all the systems of humans and other animals (including livestock, poultry, companion animals, and fish). It enables readers to understand the crucial roles of amino acids and their metabolites in the health and diseases of the circulatory, digestive, endocrine, immune, muscular, nervous, reproductive, respiratory, skeletal, and urinary systems, as well as the sense organs (eyes, ears, nose, skin, and tongue). Readers will learn that amino acids are not only the building blocks of protein, but are also signalling molecules, as well as regulators of gene expression, metabolic processes and developmental changes in the body. This knowledge will guide nutritional practices to improve the growth, development and health of humans and other animals, as well as prevent and treat chronic (e.g., obesity, diabetes, and cardiovascular disorders) and infectious (e.g., bacterial, fungal, parasite, and viral) diseases. Editor of this volume is an internationally recognized expert in nutritional biochemistry. He has over 38 years of experience with research and teaching at world-class universities in the area of amino acid biochemistry, nutrition, and physiology. He has published more than 625 papers in peer-reviewed journals, 62 chapters in books, and authored two text/reference books, with an H-index of 117 and more than 55,000 citations in Google Scholar. This publication is a useful reference for professionals as well as undergraduate and graduate students in animal science, biochemistry, biomedical engineering, biology, human medicine, food science, kinesiology, nursing, nutrition, pharmacology, physiology, toxicology, veterinary medicine, and other related disciplines. In addition, all chapters provide general and specific references to amino acids in systems health for researchers and practitioners in biomedicine, animal and plant agriculture, and aquaculture, and for government policy makers.
Download or read book Poultry Nutrition written by Vincenzo Tufarelli and published by MDPI. This book was released on 2021-01-06 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this Special Issue is to publish high quality papers concerning poultry nutrition and the interrelations between nutrition, metabolism, microbiota and the health of poultry. Therefore, I invite submissions of recent findings, as original research or reviews, on poultry nutrition, including, but not limited to, the following areas: the effect of feeding on poultry meat end egg quality; nutrient requirements of poultry; the use of functional feed additives to improve gut health and immune status; microbiota; nutraceuticals; soybean meal replacers as alternative sources of protein for poultry; the effects of feeding poultry on environmental impacts; the use of feed/food by-products in poultry diet; and feed technology.
Download or read book Dose Response Relationships Between Intake and Efficiency of Utilisation of Individual Amino Acids in Chicken written by Andrew Adegboyega Fatufe and published by Cuvillier Verlag. This book was released on 2004 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutritional Modelling for Pigs and Poultry written by Nilva K Sakmoura and published by CABI. This book was released on 2014-12-15 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling is a useful tool for decision making in complex agro-industrial scenarios. Containing a selection of the papers presented at the International Symposium of Modelling in Pig and Poultry Production 2013, this book brings together the best and most recent academic work on modelling in the pig and poultry industry, with a particular emphasis on nutrition. It reviews basic modelling concepts, descriptions and applications of production models and new methods and approaches in modelling.
Download or read book Experiments with Chickens written by E. P. Niles and published by . This book was released on 1899 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: