Lactating Cow Nutrition

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Survey: Amino acid balancing very important 
Despite current economic challenges, the number of people expressing interest in balancing their rations for amino acids remains strong, according to a recent survey.

Bedding, bacteria and environmental mastitis 
Environmental conditions will affect the rate and magnitude of bacterial growth in a cow’s surroundings. This report looks at the impact from different types of bedding materials.        

Aspergillus fumigatus — A Threat to Healthy Cows 
Until recently, little emphasis has been placed on understanding the direct effect that certain mold species may have on the development of mycoses or mold-related health disorders in livestock. This report looks at the impact of Aspergillus fumigatus. 

A survey of molds and yeast 
The purpose of this study is to characterize what types of fungi and toxins are present in distillers grain by-products used by dairies in Central California.

Feeding cows in times of economic uncertainty 
Since the beginning of 2009, we have witnessed milk prices drop more than 40 percent and feed cost, corn and soybean meal increase in price.

Feeding Cows in the Summer (audio)
Savvy dairy producers know the importance of adjusting their feeding programs during the intense summer heat. Jerry Weigel, BASF Plant Science LLC manager of nutrition and technical services, offers hot-weather tips to maintain milk production and maximize cow comfort in the Aug. 14 podcast.

Dairy Herd Management Articles

Reduce the risk of ketosis 
Ketosis is an undesirable disease with a severe impact on animal performance. Use this advice to prevent ketosis. 

Milk Urea Nitrogen 
MUN is another tool to monitor the nutritional protein status of dairy cows.

Iron could lower somatic cell count 
New research looks at the effect of supplementing cows from 60 days prepartum through 60 days postpartum with iron.

Estimations of water use for California dairy cows 
Economic and regulatory constraints make it important to know the volume of water consumed and the mineral content of the water.

Investigating milk-fat depression 
A dairy nutritionist in Penn State's College of Agricultural Sciences is conducting genetic research with mice to determine if cows can be influenced by diet to produce milk with a higher fat content.

Break down that fiber 
A number of strategies exist. Consider adding yeast to the mix.

Should you use that feed additive?
Use these guidelines to decide.

Ask hard questions when it comes to direct-fed microbials
With direct-fed microbials, or DFMs, it’s difficult to know exactly what you are getting unless you ask the right questions.

Minerals: small amounts, major impact 
Minerals comprise a small percentage of the diet, but can have huge consequences if supplements are removed or are supplied at inadequate levels in the ration.

How to best improve feed efficiency 
Over the past year feed efficiency has been in the news often as a way to maintain margins. Improving feed efficiency enhances margins, but the method by which improved efficiency is achieved directly impacts the improvements realized.  

Why early-lactation cows may need a higher DCAD 
During the olympic games this summer, the subject of lactic acid would occasionally come up whenever a runner or a swimmer suddenly fell
behind.



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