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Author: Simiat Ogunbode Publisher: LAP Lambert Academic Publishing ISBN: 9783659912399 Category : Languages : en Pages : 128
Book Description
Supply of the recommended Crude Protein (CP) in the diet gives good performance of broilers but introduces excess nitrogen from the undigested protein through droppings into the environment. Lowering CP in broiler diets is currently being advocated. However, lower CP levels could lead to reduced performance and compromise the birds' immune system. This study was undertaken to investigate the effect of enhancing low CP diets with methionine, lysine and Ideal Methionine to Lysine Ratio (IMLR) in broilers. Three hundred and twenty one-day old broilers were randomly allotted to ten diets consisting of a control (23.0% CP and 0.6% Methionine) and nine test diets (3x3 factorial) containing 20, 17 and 14% CP. Each of the nine test diets contained methionine levels of 0.6, 1.0 and 1.4% using completely randomized design. The experiment lasted six weeks. Also, 160 one-day old broilers were randomly allotted to 10 diets for five weeks with the same CP levels but 1.2, 1.6 and 2.0% for lysine. Similarly, 160 one-day old broilers were randomly allotted to 10 diets for five weeks with the same CP level. Then 47, 52 and 57% IMLR levels were included in the diets.
Author: Simiat Ogunbode Publisher: LAP Lambert Academic Publishing ISBN: 9783659912399 Category : Languages : en Pages : 128
Book Description
Supply of the recommended Crude Protein (CP) in the diet gives good performance of broilers but introduces excess nitrogen from the undigested protein through droppings into the environment. Lowering CP in broiler diets is currently being advocated. However, lower CP levels could lead to reduced performance and compromise the birds' immune system. This study was undertaken to investigate the effect of enhancing low CP diets with methionine, lysine and Ideal Methionine to Lysine Ratio (IMLR) in broilers. Three hundred and twenty one-day old broilers were randomly allotted to ten diets consisting of a control (23.0% CP and 0.6% Methionine) and nine test diets (3x3 factorial) containing 20, 17 and 14% CP. Each of the nine test diets contained methionine levels of 0.6, 1.0 and 1.4% using completely randomized design. The experiment lasted six weeks. Also, 160 one-day old broilers were randomly allotted to 10 diets for five weeks with the same CP levels but 1.2, 1.6 and 2.0% for lysine. Similarly, 160 one-day old broilers were randomly allotted to 10 diets for five weeks with the same CP level. Then 47, 52 and 57% IMLR levels were included in the diets.
Author: Guoyao Wu Publisher: Springer Nature ISBN: 3030544621 Category : Medical Languages : en Pages : 256
Book Description
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.
Author: Vincenzo Tufarelli Publisher: MDPI ISBN: 3039438530 Category : Science Languages : en Pages : 754
Book Description
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.
Author: Otto Mario Marin-Ramirez Publisher: ISBN: Category : Amino acids Languages : en Pages : 218
Book Description
The first study was undertaken to determine the feasibility of supplementing low protein diets with the two most commonly limiting amino acids in laying diets methionine and lysine. Individually caged incrossbred pullets were subjected to eight different treatments for twelve 28-day periods. A positive control diet containing 16.3% animal and plant protein, 2068 kcal./kg. productive energy, 0.778%, lysine and 0.536% methionine plus cystine, was compared to a negative control 14% plant protein diet formulated to contain 0.656% lysine, 0.460% methionine plus cystine and 2068 kcal./kg. productive energy. This diet was supplemented with 0.075% and 0.125% methionine; 0.050% and 0.100% lysine; 0.075% methionine plus 0.050% lysine and 0.125% methionine plus 0.100% lysine, respectively. Egg production, egg size and feed efficiency were approximately equal for the unsupplemented 14% protein and for this diet supplemented with either 0.075%, 0.125% methionine or 0.050%, 0.100% lysine. The combination of methionine plus lysine at the lower level significantly improved these economic traits and was greater than or equal to the response to the higher of both or to the positive control diet. The second study was undertaken to study the performance of commercial broilers. Fourteen diets containing either glandless cottonseed meal (GCSM), cottonseed meal (CSM), sesame meal (SM), soybean meal (SBM), or combination of these plant protein sources, with and without amino acid supplementation, (methionine and/or lysine) end in each case contributing the same total amount of crude protein, were compared to each other and to a positive animal and plant protein control diet. ...
Author: Steven Leeson Publisher: ISBN: 9780969560043 Category : Belgium Languages : en Pages : 591
Book Description
This new edition represents a total update and revision of all the important aspects of nutrition and metabolism covered previously, together with new chapters on Digestion, and Natural Toxins. The reference material reflects the most recent research conducted in all areas of poultry nutrition and metabolism of the major nutrients. The Chapters on Energy, and Proteins and Amino Acids cover in detail the most recent methods of quantitation and partitioning for maintenance and production. The classical sections on Vitamins and Minerals have been extensively modified to cover all aspects of potential interactions and antagonisms together with consequences of simple or induced deficiencies. The authors have once again produced an important reference text that maintains the standard established by Dr Scott and colleagues. The book is an essential resource for professionals and students involved with nutrition, feeding and health management of the chicken.
Author: Publisher: John Wiley & Sons ISBN: 1119371171 Category : Medical Languages : de Pages : 1488
Book Description
The most complete and definitive reference to all aspects of poultry diseases, Diseases of Poultry, Fourteenth Edition has been fully revised and updated to offer a comprehensive survey of current knowledge. Updates the definitive reference of poultry health and disease Provides more clinically relevant information on management of specific diseases, contributed by clinical poultry veterinarians Offers information on disease control in organic and antibiotic-free production Presents more concise, streamlined chapters for ease of use Incorporates advances in the field, from new diagnostic tools and information to changes brought about by the increasing globalization and the re-emergence of zoonotic pathogens
Author: N. J. Daghir Publisher: CABI ISBN: 1845932587 Category : Technology & Engineering Languages : en Pages : 401
Book Description
This book gives an overview of the poultry industry in the warm regions of the world and covers research on breeding for heat resistance. And highlights some of the findings on nutrient requirements of chickens and turkeys.
Author: Simiat Ogunbode
Author: Simiat Ogunbode
Author: Guoyao Wu
Author: Vincenzo Tufarelli
Author: Otto Mario Marin-Ramirez
Author: Steven Leeson
Author: Papinya Sirimongkolkasem
Author: 
Author: Qi Jiang
Author: John Dorsey Cole
Author: N. J. Daghir