Consumer preferences along with animal welfare concerns make pasture access for dairy cows an important issue in the dairy industry. Generally, access to pasture does not prove to be an effective option year-round due to environmental constraints.
Methionine is one of the most limiting amino acids in lactating dairy cow diets. Methionine hydroxy analogues as 2-hydroxy-4-(methylthio)butanoate are synthetic amino acids in which the amino group has been replaced with a hydroxyl group in order to protect methionine from ruminal degradation.
Foot-and-mouth disease (FMD) is a severe, highly contagious viral disease caused by an Aphthovirus that spreads quickly and produces significant economic losses in the cattle industry. The virus is found in all excretions and secretions from infected animals…
Automatic milking is very popular in intensive dairy production systems. The adoption of robotic milking in grazing-based systems is uncommon; however, recent research from New Zealand, Australia, and Ireland is showing that this technology can be implemented in these countries where grazing is a critical part of the production system
Expansion in biodiesel production worldwide has increased glycerol stocks, making this high energy co-product a potential supplement for dairy cows. According to the US Food and Drug Administration, pure glycerol is known as a safe animal feed.
Corn silage and alfalfa are considered the King and Queen of forages and are ideal for feeding cattle, but there are situations where neither is the best choice agronomically. For example, excess rain and flooding this last spring prevented planting for many necessitating the need to plant an alternative forage.
Perennial ryegrass (Lolium perenne L.) is a cool-season grass grown worldwide. Its high protein and water‐soluble carbohydrate (sugar) content makes this grass one of the most popular forage crop in the dairy industry…
Newborn calves are immunodeficient. Colostrum provides them immunity, but it also can be a potential source of pathogen microorganism such as Mycobacterium avium ssp. paratuberculosis (Johne’s disease), Mycoplasma spp., Escherichia coli, and Salmonella spp.
In robotic dairies, cows can move through the pen freely or forced. With free cow traffic, cows decide when to enter the robot whereas with forced cow traffic, the producer set one-way traffic toward the robot by one-way gates or a sorting system in which cows are forced..
Digestible fiber is an important nutrient in corn silage fed to lactating dairy cows. A recent metanalysis published by Danish researchers reported that across studies (29 experiments and 96 diets)