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 ?
Asked whether the EAD is making any preparations to facilitate the calving season, the official said there is nothing to do but monitor it because it is a natural process.
1990) and Bertram & Vivion (2002) reported that adult moose are most often killed by brown bears during spring and during the calving season, which was also observed during our study in Sweden.
We recorded FT for 345 cows (88 Nellore, 113 Guzerat, 50 Gyr and 94 Caracu) during the calving season.
The calving season did not significantly affect 305-days milk fat yield in this study.
Calving area should be free from animal traffic well in advance around calving season as animals from outside can be a potential source of infection to the newborn
I bid my farewells and told him if he ever needed holiday cover in the calving season then er, I knew the number of a really good vet.
The Navy is concerned during the calving season, so we stand up the fusion center around Dec.
A student of alternative ranching methods and genetic improvement, Guerrieri tested small herds of cattle to be calved in June, unlike the traditional March time frame, striving for a less complicated calving season.
But each June, like salmon returning to the streams where they were spawned, the herd of more than 100,000 migrates westward to the wildlife reserve for the calving season.
The cameras were installed to allow Alan to keep an eye on the herd, especially during calving season.
A short, defined calving season allows homesteaders to manage their herds more easily.