Update, Conclusions, and Recommendations …
643
official adaptation measures of Intergovernmental Panel on Climate Change (IPCC).
On an individual country scale, the adaptation and mitigation measures should take
into considerations the socio-economic dimensions aspects.
Algae and fish: Benefits and hazards. In order to secure food resources from
aquatic water bodies, the beneficial and nutrient-rich algae, whether macroscopic
or microscopic can be cultured and grown in both marine environments and inland.
The algae can be also be grown for their carotenoids that play many functions in
aquatic animals. However, some oceans are high in their nutrients and low in their
iron content. This causes a reduction in phytoplankton densities. One solution for this
and the global warming issue is iron fertilization of those oceans that would increase
phytoplankton, increase aquatic animals, and decrease global warming as a result
of carbon dioxide consumption and oxygen release. However, toxic algae can harm
and kill edible aquatic animals, thereby causing the massive die off, and toxins can
even be transferred to human beings leading to health risks. Therefore, toxic algae
and factors leading to their proliferation must be studied extensively and thoroughly
monitored as they can be transferred through biofouling and ballast water.
Climatic change and chicken immunity. Climate variability is the overarching
theme, but it is expected that the global average temperature will increase by 4 °C
by 2100. The changing environmental temperatures require adaptation from all
forms of life. Under stress conditions, avian blood tolerates a change from acidbase balance to alkaline balance. There is a decline in the plasma, a reduced level
of vitamin C in the adrenal cortex, a reduction in lymphocytes, and a depression of
the immune response. As the temperature rises, the birds undergo many changes—
increased water consumption, respiration rate, body temperature, inferior egg quality,
and susceptibility to diseases. In particular, the highly specific adaptive immune
mechanisms are affected by heat stress. In more specific, heat stress deteriorates the
cell-mediated immune responses. This reveals that heat stress needs to be considered
as an important factor compromising chicken’s health. Because of heat conditioning,
biochemical and physiological mechanisms were induced to cope with heat stress;
this induction may have delayed production of additional acute phase proteins to
protect the cells from damage. The stress hormones—cytokine interactions are
responsible for altered immune functions during heat stress. Modern-day molecular
biology tools can help in understanding various cellular and molecular mechanisms
involved in the production, physiological and immunological aspects of the poultry
birds, which in turn can help in the development of breeds more adapted to the climate
changes.
Over the past fifty years, global poultry production experienced leaps and bounces
to accommodate rising demand. However, popular demand and scientific interest
for organic poultry production, particularly feeding with medicinal botanicals, has
considerably increased in recent years. Many studies have established the fact
that herbal plants and their derivatives have the potential as immune modulators.
Both, the innate and adaptive components of the immune system are stimulated
by phylogenic. Moreover, most studies have exercised herbal extracts rather than
purified compounds. Therefore, there is still distrust concerning the efficacy and
optimum dosage of herbal plants and their derivatives as immune stimulators.
643
official adaptation measures of Intergovernmental Panel on Climate Change (IPCC).
On an individual country scale, the adaptation and mitigation measures should take
into considerations the socio-economic dimensions aspects.
Algae and fish: Benefits and hazards. In order to secure food resources from
aquatic water bodies, the beneficial and nutrient-rich algae, whether macroscopic
or microscopic can be cultured and grown in both marine environments and inland.
The algae can be also be grown for their carotenoids that play many functions in
aquatic animals. However, some oceans are high in their nutrients and low in their
iron content. This causes a reduction in phytoplankton densities. One solution for this
and the global warming issue is iron fertilization of those oceans that would increase
phytoplankton, increase aquatic animals, and decrease global warming as a result
of carbon dioxide consumption and oxygen release. However, toxic algae can harm
and kill edible aquatic animals, thereby causing the massive die off, and toxins can
even be transferred to human beings leading to health risks. Therefore, toxic algae
and factors leading to their proliferation must be studied extensively and thoroughly
monitored as they can be transferred through biofouling and ballast water.
Climatic change and chicken immunity. Climate variability is the overarching
theme, but it is expected that the global average temperature will increase by 4 °C
by 2100. The changing environmental temperatures require adaptation from all
forms of life. Under stress conditions, avian blood tolerates a change from acidbase balance to alkaline balance. There is a decline in the plasma, a reduced level
of vitamin C in the adrenal cortex, a reduction in lymphocytes, and a depression of
the immune response. As the temperature rises, the birds undergo many changes—
increased water consumption, respiration rate, body temperature, inferior egg quality,
and susceptibility to diseases. In particular, the highly specific adaptive immune
mechanisms are affected by heat stress. In more specific, heat stress deteriorates the
cell-mediated immune responses. This reveals that heat stress needs to be considered
as an important factor compromising chicken’s health. Because of heat conditioning,
biochemical and physiological mechanisms were induced to cope with heat stress;
this induction may have delayed production of additional acute phase proteins to
protect the cells from damage. The stress hormones—cytokine interactions are
responsible for altered immune functions during heat stress. Modern-day molecular
biology tools can help in understanding various cellular and molecular mechanisms
involved in the production, physiological and immunological aspects of the poultry
birds, which in turn can help in the development of breeds more adapted to the climate
changes.
Over the past fifty years, global poultry production experienced leaps and bounces
to accommodate rising demand. However, popular demand and scientific interest
for organic poultry production, particularly feeding with medicinal botanicals, has
considerably increased in recent years. Many studies have established the fact
that herbal plants and their derivatives have the potential as immune modulators.
Both, the innate and adaptive components of the immune system are stimulated
by phylogenic. Moreover, most studies have exercised herbal extracts rather than
purified compounds. Therefore, there is still distrust concerning the efficacy and
optimum dosage of herbal plants and their derivatives as immune stimulators.