Search results
Results from the WOW.Com Content Network
An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
The quantity of feed, and the nutritional requirements of the feed, depend on the weight and age of the poultry, their rate of growth, their rate of egg production, the weather (cold or wet weather causes higher energy expenditure), and the amount of nutrition the poultry obtain from foraging. This results in a wide variety of feed formulations.
Cold-blooded animals are often limited by external temperatures, which can affect their ability to hunt, escape predators, and carry out other essential activities. Homeothermy could have provided a selective advantage by allowing animals to be active for longer periods of time, increasing their chances of survival.
Chickens and hens are incredibly resilient and will cope with a bit of cold weather just fine, the British Hen Welfare Trust says. However, the charity has advice to keep the cold at bay in ...
After all, chickens come with a bunch of im-peck-able perks: Fresh eggs in an assortment of beautiful colors, automatic pest control, waste that can contribute to the compost pile or fertilizer ...
However, others who keep chickens believe they are prone to illness in outdoor weather and need a controlled-environment coop. This has led to two housing designs for chickens: fresh-air houses with wide openings and nothing more than wire mesh between chickens and the weather (even in Northern winters), or closed houses with doors, windows and ...
"Don't go out in cold weather with wet hair or you'll catch a cold!" Many people have heard this sentiment throughout their lifetimes from well-meaning parents or grandparents. Many have passed ...
Penguin feathers are scale-like and serve both for insulation and streamlining. Endotherms that live in very cold circumstances or conditions predisposing to heat loss, such as polar waters, tend to have specialised structures of blood vessels in their extremities that act as heat exchangers. The veins are adjacent to the arteries full of warm ...