#1. Ease of calving. You would want to keep cows who have a history of being able to calve without help as opposed to those who always need help during calving.
#2. Size of calves and viability. You would want to keep cows that generally calve larger calves, as well as those who rarely loose calves due to small birth size or general weakness of newborn calves. Over time your herd will become generally more robust.
Yes, but for best milk production yearly breeding is advised.
your reason for choosing it
Records are absolutely important to maintaining a healthy genetic pool, as inbreeding can cause serious defects and increase problems with overal health. Also, when selecting specific traits, you must be able to track the breeding to ensure you continue to have ability to maintain the improvement in subsequent breeding.
It is important for marketing to start before production and continue even after sales. Marking before production is useful as it gets the product and brand into the minds of the public. After production, marketing helps to keep people interested.
Once Chrysler comes out of bankrupsy it will continue.
to ensure the system will continue to be sustained after production lines have closed.
to ensure the system will continue to be sustained after production lines have closed.
No. Animals will continue to breed as long as there is other animals of their species to breed to. However, no animal can ever be "over-bred."
Yes, it's usually from January to march but can continue out to September.
A group of lifeforms that can mate and raise new individuals of their species to further continue said species.
Yes it is still in production as of 06/4/2010.
The presence of oxygen. Oxygen is needed for mitochondria