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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: 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: 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: 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: 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: National Research Council Publisher: National Academies Press ISBN: 0309048923 Category : Technology & Engineering Languages : en Pages : 174
Book Description
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.
Author: Joseph Simbaya Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The study was conducted to evaluate the nutritive value of dehulled (DCM) (Brassica napus L, cv. Westar) and yellow seeded (YSM) (Brassica compestris L, cv. Parkland) canola meals in poultry. Meals of commercial (CCM) and brown seeded (BSM) (Brassia napus L, cv. Westar) canola were used as controls. The CCM and DCM were obtained from Can Amera Foods, Altona and POS Pilot plant, Saskatoon, respectively while those of BSM and YSM were prepared in the laboratory. Compared to the the other meals, DCM had significantly higher and lower levels of protein and glucosinolates, respectively while BSM was higher in the content of total dietary fibre (TDF) and neutral detergent fibre (NDF). The levels of non-starch polysaccharides (NSP) were highest and lowest in YSM and DCM, respectively. However, both meals had similar NDF values. The protein composition of amino acids were similar in all the meals apart from DCM which had slightly higher values. There were no major differences among meals when amino acids were evaluated as percentage of protein in the meal. A study with precision-fed cockerels showed true metabolizable energy (TMEn) values to be higher in DCM and CCM than in YSM and BSM which had similar levels. There was generally low NSP availability in all the meals and comparison among meals showed DCM to have a lower value than the other meals. True amino acid availabilities (TAAA) were slightly higher in DCM and CCM though there were no significant differences among meals. A one week digestibility study with intact and cecectomised laying hens fed semi-purified diets containing 45% canola meal indicated no major differences in the digestibility of lipids, energy, NSP and amino acids between intact and cecectomised hens. In contrast to the precision fed cockerel assay, the laying hen digestibility study showed BSM to have relatively better amino acid digestibilities than the other meals while YSM tended to have the lower values. Based on glucosinolate content and color of the meal, the data indicate that DCM was subjected to excessive heat treatment during processing which may have influenced nutrient availability in this meal. The results on a two week growth trial with one week old cockerels indicated no major differences between meals in supporting chick performance. However, there were trends to indicate CCM to be of better feeding quality than the other meals.
Author: Roger Mead Publisher: CRC Press ISBN: 1351414283 Category : Mathematics Languages : en Pages : 490
Book Description
The third edition of this popular introductory text maintains the character that won worldwide respect for its predecessors but features a number of enhancements that broaden its scope, increase its utility, and bring the treatment thoroughly up to date. It provides complete coverage of the statistical ideas and methods essential to students in agriculture or experimental biology. In addition to covering fundamental methodology, this treatment also includes more advanced topics that the authors believe help develop an appreciation of the breadth of statistical methodology now available. The emphasis is not on mathematical detail, but on ensuring students understand why and when various methods should be used. New in the Third Edition: A chapter on the two simplest yet most important methods of multivariate analysis Increased emphasis on modern computer applications Discussions on a wider range of data types and the graphical display of data Analysis of mixed cropping experiments and on-farm experiments
Author: Samuel Ariyibi
Author: Samuel Ariyibi
Author: Dervan D. S. L. Bryan
Author: 
Author: S. Leeson
Author: Abdul-Rahman H. Nassar
Author: Vincenzo Tufarelli
Author: National Research Council
Author: Joseph Simbaya
Author: Roger Mead
Author: Wesley N. Ewing