What's the difference between bird and hen?

Bird


Definition:

  • (n.) Orig., a chicken; the young of a fowl; a young eaglet; a nestling; and hence, a feathered flying animal (see 2).
  • (n.) A warm-blooded, feathered vertebrate provided with wings. See Aves.
  • (n.) Specifically, among sportsmen, a game bird.
  • (n.) Fig.: A girl; a maiden.
  • (v. i.) To catch or shoot birds.
  • (v. i.) Hence: To seek for game or plunder; to thieve.

Example Sentences:

  • (1) The birds were maintained at a constant temperature in, dim green light.
  • (2) Unlike most birds of prey, which are territorial and fight each other over nesting and hunting grounds, the hen harrier nests close to other harriers.
  • (3) No vaccination reactions were noted, although most birds involved in the trials were carrying Mycoplasma spp.
  • (4) Precipitating antibodies were found in both lines; they first appeared 7 days after inoculation in P-line birds and 14 days after inoculation in N-line birds, but thereafter there was no difference between the two genetic lines.
  • (5) The results indicate that, regardless of the photoperiod, no clear functional relationship can be found between the avian pineal gland and thyroid function, although a transitory increase in T4 levels was seen in both pinealectomized and sham-operated birds shortly after the operations.
  • (6) Differences between parental and nonparental birds in VIP profiles were detected in the ventral portion of the infundibular region.
  • (7) The enterococcal population of the 'dosed' birds contained a greater proportion of Enterococcus faecium than did that of the control birds while the converse was true for Ent.
  • (8) Somewhat surprisingly then, in view of the mechanisms in mammals, birds do not seem to use this seasonal message in the photoperiodic control of reproduction.
  • (9) After 32 days of feeding, body weight, liver weight and egg production decreased in birds fed lead while kidney weights increased.
  • (10) Phyla as diverse as insects, birds, and mammals possess distinct HRAS and KRAS sequences, suggesting that these genes are essential to metazoa.
  • (11) Changes in brain size are compared with observations found in other domesticated birds.
  • (12) The presence in lamprey kidney of a loop which is similar to Henle's loop in mammals and birds indicates that the development of the system of osmotic concentration conditioned by the formation in the kidney of the medulla and from a sharp increase in renal arterial blood supply.
  • (13) We simply do whatever nature needs and will work with anyone that wants to help wildlife.” His views might come as a surprise to some of the RSPB’s 1.1 million members, who would have been persuaded by its original pledge “to discourage the wanton destruction of birds”; they would equally have been a surprise to the RSPB’s detractors in the shooting world.
  • (14) Water restriction of HYD birds for 5 days as adults stimulated tubule hypertrophy but not to the same extent as the chronic regimen and with no evidence for hyperplasia.
  • (15) Thus, the possibility exists that androgen secretion in some chelonian systems may exhibit a high degree of LH specificity like that of mammals and birds.
  • (16) 1 After the injection of labelled procaine and lidocaine in mice, the location and concentration of radioactivity was demonstrated by autoradiographical methods.2 An accumulation in some endocrine cells such as the pancreatic islets, the hypophysis, the adrenal medulla and certain cells of the thyroid (probably representing the calcitonin-producing parafollicular cells) was shown.3 After the injection of [(14)C]-procaine in chicks, an accumulation of radioactivity was observed in the ultimobranchial gland (which produces calcitonin in birds), but not in the thyroid.4 Radioactivity was also shown to be strongly concentrated in structures containing melanin, such as the pigment of the eye, skin and hair and in some organs involved in the metabolism and excretion of these drugs.
  • (17) Respiration frequency increased during exposure to 35 (four birds) and 40 degrees C (six birds) in the normally hydrated quail, while in the dehydrated quail, respiration frequency increased only in three birds during exposure to 35 degrees C, and four birds during exposure to 40 degrees C, the frequencies were lower during dehydration.
  • (18) A man in New Zealand suggested that they need to rid the country of cats to protect their native birds.
  • (19) Birds showed evidence of increased tolerance, with age, to phenylpropanolamine but not to monensin.
  • (20) Again, changes in birds fed CTN + OA for 7 days were similar but milder.

Hen


Definition:

  • (n.) The female of the domestic fowl; also, the female of grouse, pheasants, or any kind of birds; as, the heath hen; the gray hen.

Example Sentences:

  • (1) Whether hen's egg yolk can be used as a sperm motility stimulant in the treatment of such conditions as asthenospermia and oligospermia is subjected for further study.
  • (2) Studies were conducted to evaluate the effects of acute (24 h) thermal stress on anterior pituitary function in hens.
  • (3) Lead levels in contents and shells of eggs laid by hens dosed with all-lead shot were about twice those in eggs laid by hens dosed with lead-iron shot.
  • (4) Unlike most birds of prey, which are territorial and fight each other over nesting and hunting grounds, the hen harrier nests close to other harriers.
  • (5) In Experiment 1 (summer), hens regained body weight more rapidly, returned to production faster, and had larger egg weights (Weeks 1 to 4) when fed the 16 or 13% CP molt diets than when fed the 10% CP molt diet.
  • (6) Studies have been made on the activity of glycosidases from eye tissues of developing chick embryos and adult hens.
  • (7) The results suggest that a cytoplasmic progesterone receptor is present in the pituitary and hypothalamic tissue, as well as in the oviduct magnum, of the hen.
  • (8) Each diet was fed to five or six individually caged hens for 42 days.
  • (9) Mortality was less in the N-XL as compared to DB, but NB hens showed 11.7% more mortality than dwarfs.
  • (10) Raw Target RSM was force fed to 12 hens which were killed after varying time intervals (15 min., 30 min., 60 min.)
  • (11) A reduction in tibial breaking strength was also found in caged hens, when compared to deep-litter hens.
  • (12) To investigate the physical state of water in hydrating biological macro-molecules, the dielectric properties of water in hen egg lysozyme pellets with various moisture contents were studied using the thermally stimulated depolarisation currents technique.
  • (13) The TOCP-treated hens developed clinical signs of neuropathy.
  • (14) Posterior pituitary extract (0.01-0.5 equivalent) from hens in each of the various stages of the reproductive cycle induced a concentration dependent PRL release.
  • (15) Is he not going to talk to them for four or eight years?” Henning said.
  • (16) Data were obtained on hen-day egg production, egg weight, egg mass, egg specific gravity, Haugh units, feed consumption, and feed efficiency.
  • (17) Hens of the same breed and age reared together on deep litter showed no differences in nest site selection and nesting behaviour regardless of whether they had previously been housed in a deep litter house or in cages.
  • (18) Though Henning lived in Eccles, Salford, he had many friends in Bolton.
  • (19) The present study determined the amount and types of glycosaminoglycans and collagen concentrations in follicles of the domestic hen.
  • (20) Brown layer hens (BC and HC strains) and white layer hens (WL strain) orally infected with the H-162 strain of the egg-drop syndrome 1976 virus developed few clinical signs except for abnormal egg production.

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