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This specially curated collection features five reviews of current
and key research on crops as livestock feed. The first chapter
reviews the impact of feeding ruminants cereal grains on animal
physiology and health. The chapter explores the use of
starch-containing cereal grains as a feedstuff to improve animal
efficiency and performance, as well as to reduce the environmental
footprint of ruminant animal production. The second chapter
discusses key environmental trade-offs in the use of crops as
livestock feed. It reviews key elements in trade-off analysis and
explores opportunities for making better use of existing feed
resources and producing more feed biomass of higher fodder quality.
The third chapter reviews ways of optimising the use of barley for
animal feed, from production and breeding through to the
application of new technologies such as near infrared spectroscopy
and molecular markers. The fourth chapter reviews the use of
sorghum as an important source of fodder and forage. It reviews the
different types of sorghum used for forage and other applications,
and then provides a detailed discussion of the use of forage
sorghum as feed for ruminants. The final chapter discusses the use
of soybean meal (SBM) as an animal feed. It assesses the
nutritional content of SBM, as well dealing with its anti-nutritive
compounds in optimising its use.
This specially curated collection features four reviews of current
and key research on metabolic disorders in dairy cattle. The first
chapter reviews the prevalence, etiology and effects of ruminal
acidosis, as well as ways to counteract it through regulation of
ruminal pH. The chapter includes a case study on subacute rumen
acidosis (SARA) in the post-partum phase of the transition period.
The second chapter assesses the main pathways for rumen
fermentation which is a major factor in efficient transformation of
nutrients. It discusses factors influencing the efficiency of
microbial growth as well as the interactions between rumen energy
and nitrogen metabolism in ensuring efficient digestion and
avoiding metabolic disorders. The third chapter investigates the
genetics of improving feed intake efficiency which has significant
potential in reducing metabolic disorders. The chapter reviews key
challenges in developing genomic selection indices for feed intake,
including recording feed intake, pooling genetic data and
establishing genomic breeding values for feed efficiency. The
fourth chapter discusses how cereal grains impact feed efficiency
in cattle. It reviews how cereal grains can be used to improve feed
efficiency and the microbiology of cereal grain fermentation. The
chapter also discusses ways of avoiding acidosis and other negative
feed effects.
This collection features four peer-reviewed literature reviews on
antibiotics in poultry production. The first chapter places the use
of antibiotics in poultry production in its historical context to
understand the benefits that antibiotics have conferred on animal
production to date. It considers past, present and future use of
antibiotics, focusing on the use of bacteriocins and
phytochemicals. The second chapter considers the benefits and
repercussions of the use of antibiotics in poultry production. It
details the emergence of antibiotic resistance, as well as the
potential risks to public health and sustainable farming associated
with antibiotic use. The third chapter reviews the identification
and use of prebiotics as a control measure against contamination of
poultry products. The chapter covers both traditional prebiotic
compounds such as fructooligosaccharides, and less conventional
sources such as guar gum. The final chapter presents the background
and current use of Competitive Exclusion (CE) as a preventative
measure against Salmonella infections in poultry, by administration
ofcultures of intestinal origin to day-old chickens.
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Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
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