D.J.A. Cole – författare
Visar alla böcker från författaren D.J.A. Cole. Handla med fri frakt och snabb leverans.
14 produkter
14 produkter
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition — 1987 focuses on the advancement of techniques, procedures, and processes in animal nutrition. The selection first discusses techniques for identifying the metabolizable energy (ME) content of poultry feeds and the impact of declaration of ME value of poultry feeds. Methods for determining the ME of feeds; formulation of products and declaration of energy; species and ages of birds; and analytical problems are considered. The book also discusses the effects of diarrhea and wet litter in meat poultry; the inclusion of phosphorus in the diet of laying hens; natural products for egg yolk pigmentation; and the addition of enzymes to enhance the utilization of pig and poultry diets. The text also examines the nutrition of goats and cattle; immunity, nutrition, and performance in animal production; and methods of identifying the amino acid requirement of pigs. The book highlights as well the reactions of consumers to meat quality. Consumption trends; changes in eating patterns, retailing, and consumer purchasing patterns; and fatness and eating quality are considered. The book is a good source of information for readers wanting to study animal nutrition.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition 1988 focuses on how feeds affect animal nutrition. The book first discusses problems of raw ingredient variability; European legumes in diets for non-ruminants; and the implications of vitamin E and free radical formation for animal nutrition. The text also underscores approaches to enhance growth in pigs. Growth hormone injection, enzyme supplementation, somatostatin immunization, and probiotics are noted. The book then highlights the nutritional requirements of turkeys to meet market demands. Early bodyweight and subsequent growth rate; nutrition and meat yields; commercial recommendations; and traditional farm-fresh turkeys are discussed. The text also discusses the mineral and trace element requirements of poultry; response of laying hens to energy and amino acids; and prediction of the metabolizable energy content of compound feeds and nutrient allowances for ruminants. The selection is a vital source of data for readers interested in studying animal nutrition.
E-bok
PDF, Engelska, 2016756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition — 1982 focuses on the compositions of animal feeds. The book first discusses the presence of molds and mycotoxins in animal feeds. Controlling mycotoxin exposure, formation and effects of mycotoxins, and microbiology of feeds are described. The text surveys the anti-nutritive factors in animal feeds. Substances depressing digestion or metabolic utilization of proteins; substances reducing the solubility or interfering with the utilization of mineral elements; and substances inactivating or increasing the requirements of vitamins are discussed. The book also highlights oilseed meals for livestock feeding; the use of databases for the composition and nutritive value of animal feeds; and energy evaluation of poultry rations. The text underscores the influence of nutrition on hatchability, including the composition and size of hatching eggs; the right amounts of proteins, lipids, vitamins, and minerals; feed ingredients; and feeding practices. The book also discusses the energy and protein requirements of pigs and methods used in the analysis of the energy content of ruminant feeds. The selection is a good source of data for readers interested in studying the compositions of animal feeds.
E-bok
PDF, Engelska, 2017756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition: 1991 is an annual review of the changes and updates in the field of animal nutrition, especially progresses in the study of feeds. The book is divided into five parts. Part I discusses topics related to pig nutrition and feeds such as energy-protein interactions and improved utilization of amino acids. Part II covers the nutrition and growth of poultry. Part III talks about the legislations concerned with feed manufacture, and Part IV deals with nutrition of different animals such as chicks and ruminants. The text is recommended for agriculturists, zoologists, and those involved in the development and manufacture of feeds who would like to know more about the nutrition of agriculturally important animals.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition: 1992 is an annual review of the changes and updates in the field of animal nutrition, especially progresses in the study of feeds. The book is divided into four parts. Part I discusses topics related to nutrition in non-ruminant animals, while Part II covers ruminant nutrition. Part III tackles studies about general nutrition such as the use of growth promoters in animal feeds and predicting the response to variation and diet, and Part IV deals with feed compounding and its effects. The text is recommended for agriculturists, zoologists, and those involved in the development and manufacture of feeds who would like to know more about the nutrition of agriculturally important animals.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition-1981 is a collection of papers that discusses the effects of dietary fat on milk composition, relating it to the biochemistry of fat synthesis in the mammary gland. The influence of concentrates on milk composition as well as the pattern and level of concentrate feeding on milk output are also covered. The book describes the need for better utilization of grass and grass products in dairy production, the mineral and trace element requirements of pigs; the importance of anion-cation balance in poultry diets and its effects on performance levels; and the selenium and cobalt requirements of ruminants. The problems of medicinal residues in animal products and the toxicological effects of aflatoxin residues in animal products are also considered. People involved in agriculture, dairy production and animal nutrition will find the book useful.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition — 1985 focuses on the different compositions of animal feeds. The book first discusses the prediction of energy value of compound seeds. Existing methods for the prediction of metabolizable energy (ME) or digestible energy (DE) from chemical composition; poultry and pig compound feeds; ruminant compound feeds; and technical and analytical variation in the chemical composition of compound feeds are described. The text also looks at the fiber content of animal feeds, the influence of fiber on digestibility of poultry feeds, and the role of dietary fiber in pig diets. The book highlights the effect of fiber in compound feeds on the performance of ruminants. Feed intake and rumen fermentation; digestibility and energetic feeding value; and milk production and composition are considered. The text also discusses the response of pregnant animals to protein and energy intake. The book also underscores developments on anticoccidial agents for poultry. The effect of coccidiosis on growth rate and feed conversion efficiency; development of resistance to anticoccidiosis products; and continual use of ionophore anticoccidial products are considered. The text also discusses eggshell formation and quality, seasonal variation of appetite in ruminants, and photoperiodic influences on milk production in dairy cows. The book is valuable for readers interested in studying the varying compositions of animal feeds.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition 1989 focuses on the compositions of animal feeds. The book first discusses legislation and its implication for the feed compounder, including marketing of feeds, medicated feeds, and feed additives. The text highlights residues of veterinary drugs in animal products. Licensing of veterinary products; assessment of the safety of veterinary medicines; and development of performance-enhancing drugs are discussed. The book also looks at the vitamin requirements and allowances for poultry; effect of pellet quality on the performance of meat birds; and nutrition of rabbits. The text then discusses the prediction of the nutritive value of silage. History of silage energy evaluation; energy prediction and energy prediction relationships; and nutrient response based systems of rationing are described. The book focuses also on the effect of silage additives and wilting on animal performance; optimizing compound feed use in dairy cows with high intakes of silage; and nutrition of lambs. The text then looks at amino acid nutrition of pigs and poultry and etiology of diarrhea in pigs and pre-ruminants. The selection is vital for readers interested in conducting studies on the compositions of animal feeds.
E-bok
PDF, Engelska, 2016756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition — 1986 focuses on developments in the compositions of animal feeds. The book first discusses studies on the fat content of human diet. The text also looks at future trends in the marketing of animal products with particular reference to fats. The book then discusses the manipulation of fat characteristics in animal products; antinutritional factors related with dietary fats and oils; and method of analysis of feedingstuffs for the identification of crude oils. The text highlights the implications for research and the feed compounder of oils and fats determination and the implications of biotechnology for animal nutrition. The book discusses the manipulation of milk yield with growth hormone (GH). Endogenous GH and lactation potential; mechanisms underlying the galactopoietic effects of bovine growth hormone (bGH); and galactopoietic action of exogenous bGH are discussed. The text also explains near infrared reflectance analysis of forages, residues in animal products, and nutrient modulation of the immune system. The book also highlights probiotics in pig diets and use of synthetic amino acids in poultry and pig diets. The book is a good source of information for readers wanting to study the compositions of animal feeds.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Developments in Poultry Nutrition is a collection of studies that cover important developments in poultry nutrition. The book presents 23 papers that deal with the various areas of concerns in poultry nutrition. The coverage of the text includes materials that deal with poultry diet, such as metabolizable energy evaluation of poultry diets; the impact of declaration of the metabolizable energy value of poultry feeds; and the influence of fiber on digestibility of poultry feeds. The book also deals with egg production issues, including the influence of nutritional factors on hatchability; eggshell formation and quality; and dietary phosphorus for laying hens. The text will be of great use to researchers and professionals in the poultry industry. Consumers will also find this book interesting since it discusses topics that can directly affect them.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Developments in Ruminant Nutrition – 2 presents papers that discuss the advances in the different areas of ruminant nutrition. The book is comprised of 22 chapters that discuss topics such as milk production, health, and nutrition. The coverage of the text includes meeting the nutrient requirements of beef cattle in forage-based systems of production; nutrient requirements of intensively reared beef cattle; and feeding for high margins in dairy cows. The book also tackles issues concerning milk production such as photoperiodic influences on milk production in dairy cows; manipulation of milk yield with growth hormone; and the influence of level and pattern of concentrate input on milk output. The text will be of great use to researchers and professionals in the animal husbandry industry.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Feedstuff Evaluation contains the proceedings of the 50th University of Nottingham Easter School in Agricultural Sciences, held at Sutton Bonington in July 1989. The book presents papers discussing a wide range of topics on the accurate evaluation of feedstuffs for livestock. Initially, systems of expressing the nutritive value of feeds are considered. Modifications to feeding value as influenced by animal factors including intake and palatability are discussed. Specific dietary ingredients, being plant polysaccharides, fats, minerals and vitamins are detailed. Prediction of the nutritive value of compound feeds and individual feeds through classical wet chemistry and the more recent NIR is assuming considerable importance in the rapid evaluation of diets. Associated with these developments is an appreciation of the relevance of both inter- and intra-laboratory variation in determinations. Finally, the need to collate information into an interactive data-base is being actively pursued. It is evident that safety of animal feeds is becoming an increasingly topical issue and the last session considered the relevance of naturally-occurring toxic factors, residues, mycotoxins and, finally, animal pathogens. Veterinarians, farmers, farm administrators, and those involved in every aspect of nutrient supply to animals will find the compendium very insightful and informative.
E-bok
PDF, Engelska, 2013756 kr
Läs direkt efter köp
Recent Advances in Animal Nutrition—1984 documents the proceedings of the Eighteenth Annual Nutrition Conference for Feed Manufacturers. It covers a wide range of topics pertaining to the nutrition of farm livestock. The volume is organized into four parts. Part I on poultry nutrition contains papers relating to carcass quality in broilers. These deal with the influence of diet and genotype, and various aspects of meat quality. Part II on pig nutrition includes studies on the nutrition of early weaned pigs; differences in the recommendations of the Agricultural Research Council (UK) and the National Research Council (US) for energy and protein for growing pigs; and the importance of ileal digestibility of proteins in pig feeds. Part III on ruminant and horse nutrition includes papers on the efficacy of a wide range of substances for the manipulation of rumen fermentation to increase the efficiency of production; and new chemical methods for predicting the nutritive value of forages. Part IV on dairy cow nutrition addresses the practical aspects of feeding protein to dairy cattle and manipulation of milk composition by dietary means.
E-bok
PDF, Engelska, 2013979 kr
Läs direkt efter köp
Control of Pig Reproduction focuses on carefully evaluated techniques and technologies involved in the control of pig reproduction. The selection first ponders on the sexual development of male pigs, including early fetal, perinatal, and pubertal periods. The text also discusses testicular steroids and boar taint; interrelationships between spermatozoa, female reproductive tract, and egg investments; and artificial insemination. Discussions focus on androgens, estrogens, deposition of semen and uterine transit, sperm regulation and release by the isthmus, and types of artificial insemination. The manuscript examines endocrine control of sexual maturation in female pigs and sexual differentiation of the stimulatory estrogen feedback mechanism and factors affecting the natural attainment of puberty in gilts. Discussions focus on development of ovarian function and gonadal steroid levels; development of the stimulatory estrogen feedback mechanism; and maturation of negative feedback of gonadal steroids. The text also takes a look at controlled induction of puberty, endocrine control of the estrus cycle, and control of ovulation. The selection is a valuable reference for farmers and readers interested in pig reproduction.