calving

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calving

act of parturition in a bovine female, and presumably in any animal that bears a calf as its newborn. See also block calving, ease of calving.

calving-to-conception interval
interval between calving and the next conception date.
difficult calving
calving facilities
yards, crush, chute, hot and cold water, shelter, all the resources necessary for capturing and restraining a cow while helping her to deliver a calf.
calving-to-first-estrus interval
interval between calving and the first observed estrus. Data used as a measure of reproductive performance, especially dairy herds where block mating needs to be completed in as brief an interval as possible.
calving-to-first-service interval
alternative to calving-to-first-estrus interval but does not take into account any deferral of mating for managerial reasons.
calving grounds
cows that are run on very extensive grazing may need to be under close surveillance by calving time. A small area of land can be enclosed or the herd herded into it—the calving ground.
calving index
any method of expressing reproductive efficiency on the basis of the number of calves produced. May refer to the average calving interval or to the percentage of calves produced by the mated group of cows.
calving induction
see parturition induction.
calving injury
damage to the uterus, vagina and vulva or surrounding tissues, especially obturator and sciatic nerves, caused by the parturition process.
calving interval
the average time interval between successive calvings.
calving pad
a small area specifically prepared with sand or limestone base and bedding of material such as rice hulls or sawdust, where all cows are located for calving. Allows intense supervision of periparturient and calving cows.
calving paralysis
see maternal obstetric paralysis.
calving pattern
of a herd is a chronological list of calving dates. In seasonally calving herds a compact list indicates high fertility, a stretched out list indicates an indifferent fertility level.
calving percentage
see calf crop percentage.
calving record
a record of the reproductive efficiency of each dam in the form of dates, events and procedures related to reproductive function.
calving season
season of the year at which the herd, or other population of cows, calves, e.g. spring calving.
seasonal calving
when the cows in a herd calve at about the same time. Thus spring calving, autumn calving. Usually used as a management tool to take maximum advantage of seasonal feed supplies or climate.
year-round calving
herd management system in which cows are mated so that some cows in the herd will calve at all times of the year thus maintaining a regular milk supply for a fresh milk supply.
References in periodicals archive ?
Factors affecting the calf birth weight were farm, parity of dam, SST, calving year and calving season.
Bevas Jordan, manager of Office Farm, which is close to the A686, said: "People don't realise that during the calving season the mother becomes more protective and can be dangerous.
The indications of the calving season were found for the first time thanks to a detailed survey in Abu Dhabi waters, which recorded 138 dolphins of two species.
jn] = vector with fixed regressions coefficient specific to calving season subclass j and measured on DIM (d);
We conducted a prospective study in dromedary herds in Al-Hasa, Saudi Arabia, through the peak calving season (December 2013-February 2014) to document virologic features of MERS-CoV infection in these animals.
While convalescing from an illness on Hawaii's Big Island back in 1998, Hallie Austen Iglehart noticed a marked absence of humpback whales along the Kona coast during their breeding and calving season, a time when the waters usually teem with whales.
The install commenced during lambing and calving season when the farm was particularly busy so GMI worked around our schedule, even pulling off site to accommodate us.
As the year progresses, we start with Christmas decoration swallowing and salt irritation in icy conditions, through Spring lambing and tick parasite problems, to summer time fleas and skin allergies, then finishing the year with stress from fireworks and the Autumn calving season.
Heifers that conceive in their first calving season and then produce a calf every year thereafter are most profitable.
Highlights of the tour include a picnic lunch on the floor of the Ngorongoro Crater, hot air balloon safari over the Serengeti during the wildebeest calving season, a helicopter flight over Victoria Falls and a candlelight alfresco dinner party with entertainment in the Namibian dunes.
The first time my parents left my brother, sister and I, barely teenagers, alone in charge of our farm during calving season I learned that independence is not something you ask for, or negotiate, or demand, it is something you do.