Dairy farmers and veterinarians are noticing the effects of heat stress in the dry cow herd. While dry cows can stand a bit more heat than the milking herd, their comfort is important for optimizing future production. Research has shown that dry, pregnant cows or nulliparous pregnant heifers exposed to heat stress will make less milk in their next lactation, and their gestated … [Read more...]
Search Results for: heifers
Sexed semen becoming popular in beef
Using sexed semen, beef producers can selectively breed cows to a desired bull and choose the sex of the offspring. This is beneficial if they want replacement heifers from their best cows, or bull calves from certain pairings. Source: Western Farmer-Stockman, May 12, 2022. Link. To know if use of sexed semen would be of economic value in a beef operation, each producer … [Read more...]
Implanting nursing calves bumps weaning weights
Production costs continue to rise making decisions about management practices important. Paul Beck says research shows implants given during the suckling phase will increase average daily gain of steer calves by approximately 0.10 pound per day. The increase in gains by implanting heifers is slightly better at 0.12 pounds per day. Implanting calves before weaning is cost … [Read more...]
Adding value to heifer calves
Black and white is tough to beat when it comes to logic and commercial cattle, writes Wes Ishmael. He shares how Hereford bulls build and fill increasing demand for black baldy replacements in cow/calf herds and the benefits producers are realizing from crossbreeding. Most are buying baldy females because they wean heavier calves, have a nicer disposition and because … [Read more...]
Goals for first lactation dairy cows
We’ve shared considerable calving information in recent weeks. Healthy calves grow to be healthy cows. Rudimentary? Yes, but often unspoken. Calves and heifers that grow well and become productive cows is a target for every dairy farm. Mike Van Amburgh, PhD, shared some growth targets for dairy replacements, writes Abby Bauer. These include doubling a calf’s bodyweight … [Read more...]
Dry cow rest may equal more live calves
The old method of putting cows into a dry pen and forgetting them is being debunked by research. Getting cows started off right in the dry period, keeping them healthy and ending it fully rested means more calves, more milk and happier dairy persons. Research from Ohio State University shows improving the factors that encourage close-up cows and heifers to lie down and rest … [Read more...]
Younger stock love grooming brushes, too
Access to grooming brushes for lactating cows shows they help reduce stress, keep animals cleaner and limit injuries. They also limit damage to facilities caused by cows that otherwise rub their heads and bodies on gates, pen walls and edges of feed and water troughs. New research says the same goes for young calves as well. The study, published in the Journal of Dairy … [Read more...]
Dry cows need shade to thrive, increase lifetime production
When talking about environmental impact in dairies, most would think about carbon footprint or water quality. However, a University of Florida study determined it is most ideal to cool dry cows during the entire dry period to prevent milk loss. The same should be provided for bred heifers. Researchers found reduced dry matter intakes pre-calving and weaker immunity pre- and … [Read more...]
Prepare for dairy cattle heat stress
Dairy cows are extremely sensitive to heat and begin experiencing heat stress at just 65°F to 68°F. We’ve already had days with higher temperatures. The author discusses the effect of heat stress and offers some tips to help heifers and cows: Provide forms of heat abatement that avoid direct solar radiation Provide 24/7 easy access to drinking water both in the barn and … [Read more...]
Trichomoniasis prevention: Improving herd health increases ROI
Unexpected open or short-bred cows are often an unfortunate sign of a Trichomoniasis, or trich, problem. It is a reproductive disease caused by a protozoan called Tritrichomonas foetus. Bulls are asymptomatic carriers of the disease, writes Rosslyn Biggs, DVM, but play the major role in trichomoniasis transmission. Positive bulls must be removed from the herd and either … [Read more...]
Drafting heifer contracts that stick
Many handshake agreements have blown up over misunderstandings on what was said or what was agreed upon. Penn State University dairy Extension specialists recommend a full contract that sets a comprehensive fee for the grower to raise heifers for a specific length of time. Well-written legal contracts protect both parties in a business relationship by laying out the terms and … [Read more...]
75 days to prep for calving
Say what?! It’s time to plan for calving season as the first of the 2021 crop will start dropping around March 1. Greg Henderson provides tips to help producers prepare: Assess the body condition of your cows and heifers Review the herd health plan Conduct an inspection of your calving facilities to make sure everything is in working order Check your calving … [Read more...]
Preg-check beef cows early
Identifying reproductive issues, managing input costs, more efficient culling along various preg-checking methods are presented in this article. Producers have a variety of options for managing nonpregnant cows and heifers.” Source: Bovine Veterinarian, July 10, 2020. Link. Current cattle markets, weather outlooks and feed availability are all factors that should be … [Read more...]
Dang those flies!
Flies are a nasty nuisance. Whether on the farm, acreage or in the backyard, they are an insidious challenge for animal owners and people alike. It’s summer. When the temperatures go up, fly numbers rapidly increase. If not controlled, adult flies continue to lay eggs and increase the fly population. Managing larvae and adult flies should be a continuous process. Every … [Read more...]
Rethinking dairy footbath use
The dairy business is carried on cows' hooves. Digital dermatitis (DD, also known as hairy warts, strawberry warts) remains the number 1 cause of lameness in dairy herds with increasing concern among feedlot cattle. Hoof trimmer Jamie Sullivan suggests DD remains prevalent due to the way we have been trying to prevent or treat the lesions in the first place. He shares research … [Read more...]
Colostrum, first-lactation colostrum and quality decisions
First-lactation heifer colostrum has historically been considered to be of low quality which sometimes led to it being dumped. However, first lactation colostrum should not immediately be discounted as inferior as it may be just as high of quality as colostrum from older cows. The author discusses variables worthy of sharing with producers in face-to-face discussions, on social … [Read more...]
Profitable cows start with a sound heifer development plan
How you develop heifers makes all the difference in what kind of cows they become, writes Burke Teichert. He shares his perspective on issues that drive good decision making in the development and selection of replacement heifers: We should not strive for maximum conception rate in yearling heifers Heifers do not need to reach 65% of expected mature cow weight to have … [Read more...]
October calves may come early
Warm temperatures can shorten the length of gestation for fall-calving cows and heifers. Oklahoma State University physiologists looked at two calving seasons’ worth of data on 60 Angus/Hereford crossbred cows calving in August and October. Gestation periods were nearly a full week shorter than normal for those calving in August the first year and four days shorter the second … [Read more...]
Mastitis hurts
Pain recognition and mastitis were discussed recently at the 2019 Total Dairy Seminar. Dr. Jim Reynolds, professor at Western University in California, outlined the welfare aspects of mastitis and the use of non-steroidal anti-inflammatories to reduce pain caused by a mastitis infection. Learn what behavioral changes Dr. Reynolds identified that indicate a cow is experiencing … [Read more...]
Assessing fat in colostrum
Kudos to the lab researchers who are digging into all the benefits of colostrum instead of just valuing colostrum by the level of colostral immunoglobulins. By studying herd data and a small test group they have concluded that fat, not protein, represents the primary energy source the cow packages into colostrum for the calf. The term fat broadly encompasses related compounds … [Read more...]
Preweaning BRD is the leading cause of mortality in young calves
Presentations during the recent Academy of Veterinary Consultants meeting reviewed research with BRD-caused mortality in young calves. The mix of pathogens involved in preweaning BRD is similar to older calves. Diagnostics labs find Mannheimia haemolytica, Pasteurella multocida, Histophilus somni, mycoplasma and coronavirus, usually in association with at least one other … [Read more...]
Rapid fertility evolution has beef bulls in demand on dairies
Corey Geiger explains why some dairy managers are using beef genetics in their dairy cow herds. Earlier use of heifers, sexed semen and improved pregnancy rates are part of the reasons for this shift in fertility strategies. This April, 4284 bulls were declared active by A.I. organizations . . . but only 1,074 of those bulls had milking daughters. Source: Hoard’s Dairyman, … [Read more...]
Check bulls before they get turned out
An annual breeding soundness exam is vital to ensure bulls will be fertile and physically sound at turnout, writes Wyatt Bechtel. Good genetics are useless if the bull is unable to perform his job when covering a cowherd or group of heifers. Source: Bovine Veterinarian, March 27, 2019. Link. Bechtel shares the four parameters to a breeding soundness exam and what … [Read more...]
Corrections
Two posts did not link properly in the February 28 AHD Bulletin. They are: Work on yourself first, to improve your team <link>Rushing heifers to calve diminishes lifetime value <link> Source: Animal Health Digest Bulletin, February 28, 2019. Link. … [Read more...]
Trick cows to calve in the daylight
Few cattle producers like to get out of bed to check the cows at 2:00 a.m. It’s cold and dark then. When late-day feeding is implemented, field studies and researchers all report 80 percent or more of cows calve in the daytime. . . . to have more cows and heifers calve in daylight hour, try to delay putting out hay and cubes until late in the day. . . The class of … [Read more...]
Solar panels double as summer cow shades
Researchers at the University of Minnesota’s West Central Research and Outreach Center at Morris have installed solar panels that generate power and also provide cooling shade for cows and heifers. Power generation is the solar panels’ main purpose, of course. But positioned 8’ to 10’ above the ground surface, the panels can provide shade for 30 to 40 cows under one structure … [Read more...]
Rethinking how we feed milk to pre-weaning calves
This article follows previous discussions about colostrum <link> and how dairymen are rethinking how to feed and support pre-wean calves. Similar to colostrum nutrition, there is still an abundance of knowledge to be discovered about the next phase of nutrition for the dairy calf: milk feeding. Source: Progressive Dairyman, July 16, 2018. Link. . . . we have largely … [Read more...]
Five dairy “do NOT do’s” in 2018
Nutritionist Mike Hutjens offers wisdom for dairymen facing low milk prices and low margins: Do not - Remove minerals from rations Cheat heifers; slow down growth Delay breeding with longer calving intervals Avoid body condition scores > 3.25 without rBST Saving a dime and lose a dollar (organic trace minerals, hoof trimming, bull breeding) Source: … [Read more...]
Treat burned cattle properly
Upwards of 300,000 acres have been burned by recent Oklahoma wildfires. As AHD reported during the Kansas wildfires last year, getting burned cows and calves healthy again can be tough. The advice from Kansas State Research and Extension is as worthwhile this spring as last spring. Sources: High Plains Journal, March 20, 2017. (Link) For calves, heifers and bulls, there can … [Read more...]
7 signs calves are headed down a bad health path
Ann Hoskins might have used the term mindful in explaining the “look, listen, smell and feel” strategy to help identify those calves with subtle signs of sickness. The key is to closely observe calves in the moment without making assumptions or overlooking small signs. Source: Progressive Dairyman, March 1, 2018. It’s easy to miss these simple signs when you rush through … [Read more...]