Jersey Cow Lactation Cycle
Age at first calf months 25 826 8 28 1 lactations completed at 5 years of age 2 3 2 1 2 0 months in milking herd at 5 years of age 24 4 22 7 21 5 days in milk through 5 years of age 41 39 37 cows alive at 5 years of age 45 38 42.
Jersey cow lactation cycle. And cows that lose weight and body condition after calving have longer post partum intervals. The jersey was developed on the island of jersey in the english channel to produce milk. Most cow owners breed their cow every single year so they have a fresh lactation cycle. The cycle is split into four phases the early mid and late lactation each of about 120 days or d and the dry period which should last as long as 65 d.
Cows that have calving difficulty have longer post partum intervals. Cows that calve in a body condition of less than 4 scale 1 to 9 have a longer post partum interval. Managing cow lactation cycles the cattle site. Effects of milking cows once daily throughout lactation at high stocking rates 17 more cows ha than for those milked twice daily were studied in 2 friesian and 2 jersey herds during 3 lactations.
For cows the period of 60 days prior to calving and 40 days after calving this is known as the transition period. A number of changes occur in cows as they progress through different stages of lactation. A cow s milking life begins once she has calved. Cows were allocated to 2 herds within breed and were milked either once or twice daily based on age genetic merit.
Add to favorites. Ion and b energy supply lactation curve for yield of first mid lactation dairy once a day ing has mive benefits owning a family cow your. Every month first calving is delayed beyond 22 months costs producers more than 100 per heifer in lost milk production opportunity and additional raising costs. Similar to other cows a jersey cow will be first mated when she is around 16 18 months old.
First calf cows have a longer post partum interval than do mature cows. They make a transition between not being milked to producing very high volumes of milk and to a high energy ration. Yes in order for a cow to produce milk it needs to have a baby first. Cows must calve to produce milk and the lactation cycle is the period between one calving and the next.
Following this dry period of 60 days the cow will calve again and the lactation cycle will begin again. December 5 2018 by wandi leave a comment. As long as you continue to milk a cow can go for several years on one lactation cycle. As well as variations in milk production there are changes in feed intake and body condition.
However you don t have to do this. By ken scharabok for those who only need one or two milk cows for the family and aren t interested in large scale dairy cow farming one dairy cow breed in particular seems to stand out the jersey cow. At approximately 65 days she will be mated again. Jersey cow lactation cycle.
Milk production from the jersey ranks high in quality rather than quantity.