To maintain lactation, a dairy cow must be bred and produce calves. Depending on market conditions, the cow may be bred with a ''dairy bull'' or a ''beef bull.'' Female calves (heifers) with dairy breeding may be kept as replacement cows for the dairy herd. If a replacement cow turns out to be a substandard producer of milk, she then goes to market and can be slaughtered for beef. Male calves can either be used later as a breeding bull or sold and used for veal or beef. Dairy farmers usually begin breeding or artificially inseminating heifers around 13 months of age. A cow's gestation period is approximately nine months. Newborn calves are removed from their mothers quickly, usually within three days, as the mother/calf bond intensifies over time and delayed separation can cause extreme stress on both cow and calf.

do cows need to have a baby to produce milk?

A: yes

Packet filters act by inspecting the ''packets'' which are transferred between computers on the Internet. If a packet does not match the packet filter's set of filtering rules, the packet filter will drop (silently discard) the packet or reject it (discard it, and send ''error responses'' to the source). Conversely, if the packet matches one or more of the programmed filters, the packet is allowed to pass. This type of packet filtering pays no attention to whether a packet is part of an existing stream of traffic (i.e. it stores no information on connection ''state''). Instead, it filters each packet based only on information contained in the packet itself (most commonly using a combination of the packet's source and destination address, its protocol, and, for TCP and UDP traffic, the port number). TCP and UDP protocols constitute most communication over the Internet, and because TCP and UDP traffic by convention uses well known ports for particular types of traffic, a ''stateless'' packet filter can distinguish between, and thus control, those types of traffic (such as web browsing, remote printing, email transmission, file transfer), unless the machines on each side of the packet filter are both using the same non-standard ports.

when a firewall filters traffic the firewall drops the traffic?

A: yes

In 1985, the two islands of Martha's Vineyard and Chappaquiddick Island were included in a new American Viticultural Area designation for wine appellation of origin specification: Martha's Vineyard AVA. Wines produced from grapes grown on the two islands can be sold with labels that carry the Martha's Vineyard AVA designation. Martha's Vineyard was the home to the winemaker Chicama Vineyards in West Tisbury, though it closed after 37 years on August 10, 2008.

are there wine vineyards on martha's vineyard?

A: yes

Battle Creek is an American comedy-drama television series that premiered on CBS on March 1, 2015, as a weekly show broadcast on each Sunday. Starring Josh Duhamel and Dean Winters, the show followed the mismatched partnership of a police detective and FBI agent in Battle Creek, Michigan. CBS announced on May 8, 2015, after only 9 episodes had aired, that Battle Creek would end after 13 episodes.

will there be a season 2 of battle creek?

A:
no