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Author: James Edsel Marion
Publisher:
ISBN:
Category : Lipids
Languages : en
Pages : 138
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Book Description
Author: James Edsel Marion
Publisher:
ISBN:
Category : Lipids
Languages : en
Pages : 138
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Book Description
Author: Brian A. Head
Publisher:
ISBN:
Category : Broilers (Chickens)
Languages : en
Pages : 111
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Book Description
In broiler chickens, hepatic lipid metabolism plays a significant role in whole body and muscle fatty acid (FA) incorporation. Flax seed is a rich source of [alpha]-linolenic acid and can be used to increase n-3 FA in poultry meat. Previous studies have shown that flax seed in combination with carbohydrase enzymes in broiler diets enhances long chain (LC) n-3 FA in hepatic tissue. Three experiments were conducted to evaluate the effect of flax seed and carbohydrase enzyme addition on production performance, total tract lipid digestibility, hepatic fatty acid composition, liver lipid class distribution and lipid metabolism in broiler chickens. In Experiment 1, broiler chicks were placed in individual cages and fed isocaloric, isonitrogenous corn-soy diets: Control, Flax (10% flax), and Flax+E (Flax+0.05% enzyme). The diets were fed for a period of 42 days. Total tract digestibility of lipids and FA were assessed from day 19 to 21 of growth. There was no effect of diet on production performance characteristics, including final body weight (BW) or yield of cut-up parts. Flax-based diets reduced total tract lipid digestibility (p
Author: Jaime Bautista Ortega
Publisher:
ISBN:
Category : Broilers (Chickens)
Languages : en
Pages : 254
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Book Description
Three experiments were conducted in broiler hens to study the influence of dietary n-3 polyunsaturated fatty acids (PUFA) on egg quality, antioxidant status in progeny, and eicosanoid production in tissue. The objective of experiment 1 was to determine the effect of hen age and dietary n-3 PUFA on egg quality and hatchability. Two-hundred-twenty breeder chicks (males and females) (Cobb Breeders) were raised until 20 weeks of age following the company guidelines. At this age, 3 groups of birds (24 breeder hens and 3 roosters) were randomly allocated to one of the following dietary treatments: 3.5% sunflower oil (Low n-3 diet), 1.75% sunflower oil + 1.75% fish oil (Medium n-3 diet) or 3.5% fish oil (High n-3 diet). Egg quality was evaluated at 29, 37 and 45 weeks of age by determining total egg weight, its components (albumen, yolk and shell) and shell thickness. Total fat content in the yolk and its fatty acid profile was also determined. Egg production was recorded daily. Breeder hens fed the High n-3 diet laid lighter eggs with lighter yolks, albumens and shells than those fed the Medium and Low n-3 diets (p
Author: Luis L. Latrille
Publisher:
ISBN:
Category : Lipids
Languages : en
Pages : 284
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Book Description
Author: Guoyao Wu
Publisher: Springer Nature
ISBN: 3030544621
Category : Medical
Languages : en
Pages : 256
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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: Steven Leeson
Publisher:
ISBN: 9780969560043
Category : Belgium
Languages : en
Pages : 591
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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: Jie Wen
Publisher: Frontiers Media SA
ISBN: 2889764214
Category : Science
Languages : en
Pages : 158
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Book Description
Author: S. Leeson
Publisher: Nottingham University Press
ISBN: 190476178X
Category : Science
Languages : en
Pages : 413
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Book Description
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.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309039940
Category : Medical
Languages : en
Pages : 765
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Book Description
Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
Author: Gilbert A Leveile
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
