Additional expenses for other reproductive management procedures in cows that failed to conceive at their first AI, incurred due to a larger number of days open Item Additional costs Replacement Difference between the value of cull cows ($1,500) and replacement heifers
($2,200): Cost of replacement per cow/d ($700.00 x 15.8%1)/425 days21): $0.26 81 days x $0.26 = $21.06 Nutrition Cost of nutrition per cow/d: $5.00 81 daysx$5 = $405.00 Calf price Calf price per cow/d ($100/425 days21): $0.24 81 daysx$0.24 = $19.44 Labor Labor cost per cow/d: $1.50 81 days x$1.5 = $121.50 Total $567.00 (1)) Culling due to infertility in cows that failed to conceive at first service: 72/456 (15.8%).
The SCS system proved to be more economical in 13%, as compared with the CS system, which means savings in feeding and therefore in the production of replacement heifers
, reducing costs in 16.8% in the first stage (prior to weaning) and up to 18% in the second phase of this study, this is the result of the use of fodder crops adapted to local conditions and with high productivity as it is the case of sugarcane silage.
Keywords: Arkansas, Cattle, Drought, Forest, Hay, Impacts, Irrigation, Precipitation, Replacement Heifers
, Row Crops, Trees
Another modeled production on a confinement farm with a herd of 100 moderate framed Holsteins and 80 replacement heifers
. Each cow in this system produced 18,500 pounds of milk each year.
should be managed to have their first calf by 2 years of age.
Custom raising heifers: Variation in the cost of raising replacement heifers
Lack of a high-quality forage legume like alfalfa makes it difficult to achieve growth rate targets (0.8 kg live weight gain [d.sup.-1]) for dairy replacement heifers
fed forage alone.
Prices of replacement heifers
and cows were very high, if adequate numbers could even be found when wanted.
distribution of growing replacement heifers
may be a function of genetic selection for milk yield over the time , Mechanisms responsible for hyperplasia or hypertrophy, or both, that underlie such increases in mass generally reflect those during developmental growth .
One graduate wrote from his ranch in Texas: "We are raising our own replacement heifers
from a flourishing herd of Brangus cows.
Data on replacement heifers
indicate that beef cow numbers likely will remain flat or increase only moderately.
This finding will enhance current knowledge and help establish additional alternative dietary recommendations for dairy replacement heifers
Ray and Bonnies son Guy and grandson Kyle currently manage 250 registered Hereford cows and 60 replacement heifers
on the ranch.
This week I have been dehorning, tagging and de-worming the last of our later-born calves and also the yearlings and replacement heifers
. It is now the time of year where I am praying for dry weather so we can make silage for the pit and start making hay.
USING genomics to breed the best females is eliminating unproductive replacement heifers
at a North Wales dairy farm.