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Poultry
Poultry metabolism is a high-rate process designed for rapid growth and efficiency, with mature hens exhibiting a basal metabolic rate of approximately 57.6 calories per kilogram per day. It involves breaking down dietary carbs into glucose, utilizing dietary fats for energy, and converting protein for tissue maintenance, largely driven by hepatic lipogenesis. Key factors influencing this, such as environmental heat stress, can alter protein turnover and accelerate gluconeogenesis.
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<strong jscontroller=”zYmgkd” jsuid=”SwZzVb_t” data-processed=”true”>Key Aspects of Poultry Metabolism and Microbiome:
<ul jscontroller=”mPWODf” jsuid=”SwZzVb_1k” data-processed=”true”>
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_1n” data-processed=”true”>Metabolic Functions:
Microbiota ferment undigested carbohydrates, producing short-chain
fatty acids (SCFAs) like acetate, propionate, and butyrate, which
provide energy for the host and maintain intestinal integrity. They also
synthesize vitamins and metabolize proteins.- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_1q” data-processed=”true”>Energy Contribution: The cecal microbiota is highly dense and contributes over 10% to the host’s total energy needs.
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_1t” data-processed=”true”>Microbiome Composition: Dominated by <em jscontroller=”yHWXO” jsuid=”SwZzVb_1u” data-processed=”true”>Firmicutes, <em jscontroller=”yHWXO” jsuid=”SwZzVb_1v” data-processed=”true”>Bacteroidetes, <em jscontroller=”yHWXO” jsuid=”SwZzVb_1w” data-processed=”true”>Proteobacteria, and <em jscontroller=”yHWXO” jsuid=”SwZzVb_1x” data-processed=”true”>Actinobacteria.
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_20″ data-processed=”true”>Immune Modulation:
The microbiome trains the immune system to distinguish between
beneficial and pathogenic bacteria, promoting pathogen exclusion (e.g., <em jscontroller=”yHWXO” jsuid=”SwZzVb_21″ data-processed=”true”>Salmonella, <em jscontroller=”yHWXO” jsuid=”SwZzVb_22″ data-processed=”true”>C. perfringens) through competition for resources.- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_25″ data-processed=”true”>Factors Influencing the Microbiome:<ul jscontroller=”mPWODf” jsuid=”SwZzVb_26″ data-processed=”true”>
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_29″ data-processed=”true”>Diet: Feed composition, including fiber levels, is the primary driver of microbial community structure.
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_2c” data-processed=”true”>Environment & Age:
The gut is colonized shortly after hatching, influenced by the
surrounding environment, with succession occurring over the bird’s life.- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_2f” data-processed=”true”>Antibiotics/Additives: Conventional systems often use antibiotics, while alternatives like probiotics/prebiotics aim to enhance beneficial microbes.
- <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_2i” data-processed=”true”>Dysbiosis Consequences:
An unbalanced microbiota (dysbiosis) leads to poor nutrient absorption,
reduced growth, metabolic disorders (e.g., in lipid metabolism), and
increased susceptibility to disease - <strong jscontroller=”zYmgkd” jsuid=”SwZzVb_1n” data-processed=”true”>Metabolic Functions:
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100 right
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Good 💯
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