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Author: Maya Rad-Spice Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Means of improving the quality of CM for poultry, including breeding for low-fiber canola and the use of exogenous enzymes, have been proposed. The objectives of the current study were: (1) To evaluate the chemical and nutritive composition of new yellow-seeded B. napus and B. juncea canola, (2) To investigate the effect of canola type and enzyme supplementation on AMEn and SID of amino acids, and growth performance of broiler chickens, (3) To explore the new carbohydrase enzymes for their ability to depolymerize NSP of CM in vitro, and (4) To evaluate the effect of new enzyme combinations in vivo with broiler chickens. In comparison with the conventional meal, yellow-seeded B. napus and B. juncea contained more crude protein, more sucrose, and less dietary fiber. The AMEn and SID amino acid values for yellow-seeded B. napus, B. juncea canola, and the conventional black-seeded B. napus were 1865, 2092 and 1902 kcal/kg DM, and 82.5, 83.2, and 81.8%, respectively. Enzyme addition resulted in a more pronounced effect on the AMEn content of B. juncea meal. When birds were fed diets containing 15% CM, BWG averaged 2.32, 2.30, 2.19, and 2.31 kg for the SBM-based Control, black and yellow B. napus, and B. juncea meals, respectively. A lower (P
Author: Maya Rad-Spice Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Means of improving the quality of CM for poultry, including breeding for low-fiber canola and the use of exogenous enzymes, have been proposed. The objectives of the current study were: (1) To evaluate the chemical and nutritive composition of new yellow-seeded B. napus and B. juncea canola, (2) To investigate the effect of canola type and enzyme supplementation on AMEn and SID of amino acids, and growth performance of broiler chickens, (3) To explore the new carbohydrase enzymes for their ability to depolymerize NSP of CM in vitro, and (4) To evaluate the effect of new enzyme combinations in vivo with broiler chickens. In comparison with the conventional meal, yellow-seeded B. napus and B. juncea contained more crude protein, more sucrose, and less dietary fiber. The AMEn and SID amino acid values for yellow-seeded B. napus, B. juncea canola, and the conventional black-seeded B. napus were 1865, 2092 and 1902 kcal/kg DM, and 82.5, 83.2, and 81.8%, respectively. Enzyme addition resulted in a more pronounced effect on the AMEn content of B. juncea meal. When birds were fed diets containing 15% CM, BWG averaged 2.32, 2.30, 2.19, and 2.31 kg for the SBM-based Control, black and yellow B. napus, and B. juncea meals, respectively. A lower (P
Author: Joseph Simbaya Publisher: National Library of Canada = Bibliothèque nationale du Canada ISBN: 9780612135048 Category : Languages : en Pages : 362
Book Description
The purpose of this research was to explore the potential for improved utilization of canola meal by monogastric animals. In study one, 26 yellow-seeded and 7 brown-seeded Brassica genotypes were evaluated for differences in chemical composition and dietary fibre profiles. On average, in comparison to brown-seeded, yellow-seeded genotypes contained more sucrose (8.7% vs 7.5%) and protein (44.5% vs 42.7%) and less dietary fibre (28% vs 33%). Dietary fibre was negatively correlated (r=-0.71) with protein content and its reduction in yellow-seeded samples was attributed to lower contents of lignin and polyphenols, cell wall protein and minerals associated with the fibre fraction. In a second study, selected Brassica genotypes were analyzed for digestible protein, soluble fibre, content of soluble phenolics and extract viscosity. Despite only minor differences in soluble fibre, soluble phenolics and extract viscosity, B. rapa and B. napus species had relatively high digestible protein content in comparison to B. juncea and B. carinata species. The measurements of digestible protein and dietary fibre as well as soluble phenolics and extract viscosity were poorly correlated. Based on chemical composition and digestible protein content, four Brassica cultivars were selected for use in a third study and the seeds were processed under optimal moist heat treatment conditions (108 + 1oC for 20 min). The samples included yellow-seeded B. rapa (cv. Parkland), B. rupus (cv. Y1016) and B. juncea (J4316) and brown-seeded B. rapus (cv. Excel). With the exception of B. rapa, all samples had higher than commercial meals protein content with the yellow-seeded B. napus canola showing the highest true metabolizable energy value. The overall performance of broiler chickens fed the Brassica seed meals was similar to that of the commercial meal from yellow-seeded canola (control) except for B. juncea which had a relatively high content of undesirable aliphatic glucosinolates. Of the diets with comparable growth performance, birds fed the yellow-seeded B. napus canola showed the highest feed efficiency value. In a forth study an attempt was made to improve the utilization of canola meal by supplementation of broiler chicken diets with exogenous enzymes. A positive and synergistic effect was noted when a combination of protease, carbohydrase and phytase enzymes were supplemented to canola meal-based diets deficient in available phosphorus.
Author: S. Leeson Publisher: Nottingham University Press ISBN: 190476178X Category : Science Languages : en Pages : 413
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: Abdul-Rahman H. Nassar Publisher: ISBN: Category : Chickens Languages : en Pages : 190
Book Description
Several experiments involving broilers and laying hens were conducted with the primary goal of evaluating the feeding value of Canola meal (CM) in both broiler and laying hen rations. A secondary goal was to study the growth response of broilers receiving higher concentrations of CM in their starter diets to supplements of protamone, arginine, methionine and/or zinc bacitracin. In the broiler experiments, satisfactory performance was obtained by feeding diets in which CM replaced up to 50% of soybean meal (SBM). However, growth and/or feed consumption and efficiency of feed utilization were adversely influenced by feeding CM at replacement levels higher than 50%. Protamone at 0.0025% of the diets containing CM at 50% and 100% reduced the enlarged thyroids of birds fed such diets to a size approaching that of controls, but a 0.005% level of protamone greatly reduced the size of the thyroids below that of birds fed the corn-SBM diet. No growth response was associated with the lower protamone dietary treatment, when a significant reduction in growth was observed to feeding the diets containing the higher protamone rate. Dietary supplements of arginine, methionine and zinc bacitracin did not appear to have a positive effect on performance of broiler chicks fed the starter diets at which CM substituted for higher levels of SBM. In all the broiler trials, there were no significant differences between the dietary treatments for the incidence of a leg abnormality condition, however, in experiment 4, when the chicks were fed the starter rations in which CM replaced 50% and 100% of SBM, a numerical increase in the occurrance of this condition was observed. In the laying hen experiment, CM which replaced up to 100% of SBM of the experimental rations, did not have any adverse effect on hen egg production, efficiency of feed utilization-, external and internal egg quality or final body weight. Fertility and hatchability of fertile eggs as well as dropping scores were also not significantly influenced by such dietary treatments. In both the broiler and laying hen trials, thyroid glands tended to be slightly enlarged with increasing levels of CM in the diets.
Author: Publisher: Academic Press ISBN: 032313887X Category : Technology & Engineering Languages : en Pages : 464
Book Description
From the PrefaceThe objective of this book is to review the basic knowledge and methodology of feeding grazing ruminants in tropical and semitropical countries. It is hoped this information will be of use to farmers, research specialists, teachers, students, extension specialists, feed manufacturers, and others throughout the world concerned with the nutrition of grazing ruminants. A unique feature is the identification of nutritional limitations of grazing ruminants in the tropics, which will be beneficial for increasing animal production efficiency through the application of improved nutrition. A large number of photographs illustrate nutritional deficiencies and conditions in tropical countries.This book contains 18 chapters concerned with the nutrition of grazing ruminants. The first chapter deals with the contributions, locations, and various types of ruminants and their importance to human welfare in the tropics and subtropics. Chapters 2 - 4 progress through nutrient requirements of grazing ruminants in warm climates, the effects of tropical heat on these requirements, and water requirements for ruminant species. Chapters 5 - 7 discuss grass and legume forage species suitable for tropical regions, pasture management procedures, and energy-protein supplementation programs needed during the extensive dry periods. The importance of tropical forages and soils toward meeting mineral requirements is discussed in Chapter 8. Chapters 9 -14 contain concise, up-to-date summaries of minerals emphasizing mineral status, incidence of mineral deficiencies and excesses in tropical regions, and benefits and methods of mineral supplementation for grazing ruminants are discussed in Chapters 15 - 17. Chapter 18 reviews vitamin nutrition considerations for ruminants consuming tropical forages.
Author: Samuel Ariyibi Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Canola meal (CM) is a less expensive protein ingredient than soybean meal (SBM) for livestock feed formulation. Canola processing has a major impact on the nutritional quality of the meal, limitations in the dietary inclusions are associated with reduced meal quality because of overheating during processing. Crude protein (CP) and amino acid (AA) digestibility are affected by differences in processing methods and conditions causing a variation in the chemical and nutritive value of the meal. As a result, protein quality of CM can be verified using standardized ileal digestibility (SID) of AA in young broiler chickens to ascertain values that are reliable for efficient feed formulation when considering high inclusion levels of CM in poultry diet. Two separate experiments were conducted to measure SID of AA of CM sourced from 14 crushing plants across Canada, as well as to determine the effect of varying inclusion levels of CM on growth performance and nutrient digestibility of young broiler chickens. There were significant variations in SID of Lys (86.3 vs. 74.2%), Trp (94.5 vs. 76.7%) and Thr (87.3 vs.71.6%) of CM for broiler chickens. Whereas, Met (91.8 vs. 87.4%) and Cys (81.8 vs. 73.7%) were not significantly affected but Arg, which is known as a conditionally essential AA, varied significantly (92.0 vs. 83.8%). Lysine (1.97 vs. 1.53%), Thr (1.64 vs. 1.24%) and Met (0.68 vs. 0.46%) as well as other AA varied significantly in their standardized ileal digestible contents, while a regression analysis showed a significant relationship among AA suspected to be heat sensitive. In the growth performance experiment, overall result revealed that neutral detergent fiber (NDF) content of diet differed substantially with increased levels of CM but bird performance was not significantly affected. Energy utilization varied with age of birds while NDF digestibility was not affected by incremental levels of CM inclusion.
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: Maya Rad-Spice
Author: Maya Rad-Spice
Author: Joseph Simbaya
Author: S. Leeson
Author: Abdul-Rahman H. Nassar
Author: 
Author: Samuel Ariyibi
Author: Qi Jiang
Author: Vincenzo Tufarelli
Author: 
Author: Wesley N. Ewing