herd

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herd

(hĕrd),
A group of people or animals in a given area.
[O.E. heord]

herd

(hĕrd)
A group of people or animals in a given area.
[O.E. heord]

herd

[AS. heord]
Any large aggregation of people or animals.

herd

a group of animals, usually cattle, or pigs, or related wild animal species, which live a collective life together. This may be a natural pattern of behavior or be imposed by a human operated management system.

herd abnormality
an abnormality detectable only by examination of epidemiological data, e.g. milk yield per hectare, conception rate to first service.
herd composition
includes bulls (where applicable), cows in milk, dry cows, heifers not yet calved, bred heifers, virgin heifers, yearlings, calves weaned and suckers or at foot. Called also herd structure.
herd diagnosis
a diagnosis made to fit a herd problem which may be, for example, a low reproduction rate, or wool yield, or win rate at the races.
dairy herd
herd used exclusively for milk production.
herd epidemic
an epidemic confined to one herd.
herd fertility control scheme
programs based on surveillance of all reproduction data and comparison of indexes with preset targets. Correction of inefficiencies may be implemented by the farmer but diagnosis of the cause and treatments and prophylaxes are largely the province of the veterinarian.
herd health program
a health management system based on periodic visits to the herd by a veterinarian to check the status of a series of identifiable health parameters including production, reproductive efficiency, mastitis prevalence, calf survival, cow culling and mortality rate, fecal egg counts. Superior programs also include production management so that genetics, nutrition, housing, disease control and financial management are coordinated in a wholefarm approach.
herd immunity
a level of resistance in a herd or flock which is sufficient to prevent the entry of a particular disease into, or its spread within, the herd. The resistance may be innate, a genetically based resistance, or acquired as a result of previous exposure to the particular agent or of vaccination. The general usage of the term relates to the prevention of spread of infection at an epidemic level. So that in a herd in which there are 70 to 80% of immune animals there may be sporadic cases but the prevalence is unlikely to be significant. The same comments apply to larger populations, e.g. a wild animal or companion animal population which is really not managed as a herd.
herd level test
test performed on the entire herd or an adequate sample of it.
rolling herd average (RHA)
the average milk production per herd per year based on the 12 months just finished. Upon completion of a new test record, usually at monthly intervals, the record for the same period of the previous year is deducted and the new record is added, then a new rolling 365-day average is calculated. RHSs are updated with each new test. See also moving average.
herd sampling
examination, either physical or clinical pathological, of a herd to determine the herd status in a particular epidemiological parameter.
herd size
a critical factor in planning for productivity efficiency. May be quoted as the number of animals of a particular age or stage of production, e.g. milking cows, assuming that other, usually young, stock are also carried on the farm.
herd structure
see herd composition (above).
herd udder health
status of the herd with respect to the prevalence of quarter infection, clinical mastitis, teat lesions.
References in periodicals archive ?
Documentation is found at the Deutsches Hirtenmuseum (German Museum of Herding) in Hersbruck in central Germany, where texts and film archive describe the scene whereby a herdsman would gather the villagers' cattle daily by blowing a long horn, in order to lead them to pastureland outside the village.
The Kazak herdsman, Berek Sawut, from Qinghe County in Altay Prefecture made the extraordinary discovery around 5 p.
A herdsman was described as being able to recognize FMD if he identified at least 1 of the FMD photographs correctly and either identified or recognized lumpy skin disease as not being FMD.
Herdsman (11-2) won the PS12,000 Weatherbys Private Banking Handicap Chase by two and a quarter lengths from Everaard and could be Eider Chase-bound.
Three horses, including the winner, were soon well clear of the other four and up the straight Herdsman looked as though he was tiring.
Ali Al Diban, Emirati owner of the farm, said he received a call from his herdsman at dawn informing him about the attack on his farm by wild dogs.
Children in Japan celebrate the legend of the princess and the herdsman during Tanabata, or the Star Festival.
Richard Band has retired from his job as herdsman at Warwickshire College's Moreton Morrell site where he spent 40 years in charge of the college's 100 cows.
TROOPS on patrol have arrested a herdsman with a locally made bulletproof and cutlass at Chegba village in Logo Local Government Area of Benue.
First is the real farmers/herdsmen clashes, where the normal herdsman moves around with his cattle and get into a farmers land and eats up his crops.
That herdsmen must stop attacks on any member of the host communities, any herder that breaches the peace should be prepared to face the wrath of the law, and Ekiti people should not provoke the herdsman or kill their cattle.