(n.) An animal one year old, or in the second year of its age; -- applied chiefly to cattle, sheep, and horses.
(a.) Being a year old.
Example Sentences:
(1) Sires of the cows had been divergently selected on yearling weight (YW) and total maternal (MAT) EPD to form four groups: high YW, high MAT EPD; high YW, low MAT EPD; low YW, high MAT EPD; and low YW, low MAT EPD.
(2) A yearling Quarter Horse colt was examined because of intermittent esophageal obstruction.
(3) Three age groups were used: stall fed yearlings, grazing heifers and lactating cows.
(4) Healthy yearling beef and dairy cattle were inoculated with a vaccine containing modified-live bovine respiratory syncytial virus (ML-BRSV), and sequential changes in clinical signs of disease, blood leukocyte subsets, BRSV-specific antibody titer, and in vitro lymphocyte blastogenic responses were monitored.
(5) In comparison with the parent, RKAW5 exhibited a significant decrease in adherence to human buccal epithelial cells and in nasal colonization of yearling rhesus monkeys.
(6) The foals and yearlings were allowed to graze on open pasture throughout the experiment to provide a natural source for bot and helminth infections.
(7) Under the conditions of this investigation, age and acquired resistance to Ostertagia ostertagi were not demonstrated, since previously non-exposed calves and yearlings and previously infected yearlings had comparable worm burdens.
(8) At the time of spring turnout, a bolus was administered to each calf or yearling in the treated group.
(9) The pharmacokinetic properties of a long-acting formulation of chloramphenicol were determined in six yearling cattle after a single intravenous (i.v.)
(10) Yearling feeder steers (n = 324) representing nine frame size (Large, Medium, Small) x muscle thickness (No.
(11) The effect of adult thymectomy on the thoracic duct lymphocyte population of yearling calves has been investigated.
(12) Photosensitive, yearling Large White turkey breeder hens underwent pinealectomy (PX) or bilateral ocular enucleation (EX) or both while held on 8 hr of light per day (8L:16D) and were then photoinduced into a typical 20-week egg laying period by exposing the birds to 16 hr of light per day (16L:8D).
(13) However, annual mean EPG and larvae per gram of feces counts of mares and yearlings tended to increase over time, and for the yearlings treated with TBZ + PPZ and PTZ + PPZ-CS2, the buildup of these mean counts was statistically significant (P less than 0.05 for regression coefficients).
(14) pastures with neither energy nor protein feed supplementation at stocking rates of 6.7, 8.0, 9.5 and 12.4 yearlings per hectare.
(15) Examination of sera from yearling animals and sentinels in the region for antibody to the range of serotypes of BTV recognized worldwide, has resulted in a) the isolation of BTV type 2 from cattle in Florida - the 1st time this virus has been identified in the Western Hemisphere - and b) the recognition that the range of serotypes of BTV present in the Caribbean may be different from those in the USA.
(16) When observed as yearlings and 2-year-olds, juveniles who had had more protective early mothering showed less interest in the external environment, as measured by the percentage of time they spent looking outside the home enclosure.
(17) Metabolic changes were studied in the serum, saliva and peritoneal fluid of 5 healthy yearling feedlot steers after experimentally induced urinary bladder rupture.
(18) On serological grounds there appears to be little advantage in using the reduced dose vaccine in yearling heifers as opposed to the standard dose vaccination of 5 to 7 month old heifers.
(19) Two digestion trials were conducted with seven crossbred, abomasally cannulated yearling steers (400 kg) to study the effect of level of feed intake on the site and extent of feed and microbial protein digestion.
(20) Responses of yearling steers grazing a mixture of three tropical legumes with bahiagrass (Paspalum notatum Flugge) were evaluated at three stocking rates under continuous grazing.