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The chicken (Gallus domesticus) is a large and round short-winged bird, domesticated from the red junglefowl of Southeast Asia around 8,000 years ago. Most chickens are raised for food, providing meat and eggs ; others are kept as pets or for cockfighting .
Raillietina echinobothrida is a parasitic tapeworm belonging to the class Cestoda. It is the most prevalent and pathogenic helminth parasite in birds, particularly in domestic fowl, Gallus domesticus Linnaeus, 1758. [ 1 ][ 2 ] It requires two hosts, birds and ants, for completion of its life cycle. It is a hermaphrodite worm having both the ...
The moorhen is a distinctive species, with predominantly black and brown plumage, with the exception of a white under-tail, white streaks on the flanks, yellow legs and a red frontal shield. The bill is red with a yellow tip. The young are browner and lack the red shield. The frontal shield of the adult has a rounded top and fairly parallel ...
Raillietina cesticillus is a small tapeworm measuring about 15 centimetres (5.9 in) in length, and 1.5–3 millimetres (0.059–0.118 in) in width. It is whitish in colour, highly elongated, dorso-ventrally flattened, and entirely covered with a tegument. The body consists of the head region called 'scolex', an unsegmented 'neck', and a highly ...
Eimeria tenella has a monogenetic life cycle, that is, the life cycle involves a single host. [2] Various stages of its complicated life cycle may conveniently be described under two phases, asexual cycle or schizogony and sexual cycle involving gametogony. Much of life cycle is intracellular.
H. gallinarum is about 1–2 cm in length with a sharply pointed tail and a preanal sucker. The parasite is a diecious species with marked sexual dimorphism. Males are smaller and shorter, measuring around 9 mm in length, with a unique bent tail. Females are stouter and longer, measuring roughly 13 mm in length, with a straight tail end.
This cycle is then repeated when another flock of 20 week-old birds is put into the barns to begin the process again. As a general rule, each farmer produces enough broiler hatching eggs to supply chicks for 8 chicken producers. [11] (Other sources indicate a parent hen will lay about 180 eggs in a 40-week production period.) [12]
The greater prairie-chicken was almost extinct in the 1930s due to hunting pressure and habitat loss. In Illinois alone, in the 1800s, the prairie-chicken numbered in the millions. It was a popular game bird, and like many prairie birds, which have also suffered massive habitat loss, it is now on the verge of extinction, with the wild bird ...