This depends on their condition when they're bred. Thin cows may need gain 100 to 300 lbs over their gestation period; Fat cows may need to loose 100 or 200 lbs before they calve; Cows that are optimal condition should be fed so that they neither gain nor lose weight.
That depends on the breed. body condition and age of the cow and what period of gestation or pregnancy she's in. A cow early in gestation may weigh less than a cow in late gestation.
About 500,000 grams.
Probably a cow poop 500 grams
7 grams
825,000
Silver quarters weigh 6.25 grams. Clad quarters weigh 5.67 grams.
250 grams
it ways about 3 grams
113 GRAMS.
1.5-2 grams
About 5 grams.
16 grams
about 5-10 grams
1.7-1.8 grams