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Milk quality
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Raw milk is illegal in many countries as it can be contaminated with potentially harmful microbes. Contamination can also spoil the milk, making it taste bitter and turn thick and sticky. Now scientists have discovered new species of bacteria that can grow at low temperatures, spoiling raw milk even when it is refrigerated. According to research published in the November issue of the International Journal of Systematic and Evolutionary Microbiology, the microbial population of raw milk is much...
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Invest time to improve milk quality where you'll get the most bang for your buck. Today’s tighter margins make milk producers more aware than ever of the importance of milk quality. They know that subclinical mastitis cuts milk production, they’re aware of consumer concerns about food quality and safety, and they certainly know that they must take every opportunity to improve production and profit margins. What can you do if your average bulk tank somatic cell count...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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In what could be a boon to the dairy industry, milk has been shown to contain anti-cancer and anti-obesity components. Over the last decade scientists have discovered that some nutrients in foods have an effect greater than their nutritional value. Conjugated linoleic acids (CLA) are an example. In animal studies, these unique fatty acids have been shown to have a range of health benefits, including anti-cancer and anti-obesity. Fortunately for...
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China has adopted its first rules governing allowable levels of an industrial chemical at the center of the tainted milk scandal, as it tries to assuage a growing number of countries that are banning its imports. The government has been struggling to deal with festering health and public relations issues since the crisis erupted last month. China's food exports have increasingly suffered, with more nations issuing import bans. The melamine contamination has been blamed in the...
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Boosting Dairy Cow Performance: The Story Behind a Natural Nutritional Solution
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Oxidized Flavour Description An "off" (or objectionable) flavour that is described as tasting "cardboardy," "metallic" or "oily" in nature. The Oxidation Process Oxidation is a chemical reaction between oxygen and the polyunsaturated fatty acids of the membrane that surrounds each milk fat globule. Reaction end products include aldehydes and ketones, which impart a distinctive...
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Milk may help prevent potentially dangerous bacteria like Staphylococcus from being killed by antibiotics used to treat animals, scientists heard yesterday (Monday 8 September 2008) at the Society for General Microbiology's Autumn meeting being held this week at Trinity College, Dublin. Bacteria sometimes form structures called biofilms that protect them against antibiotics and the body's natural defences. Now scientists have discovered that one of the most important micro-organisms that...
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Effects of dietary rumen-protected, ruminal-infused, or abomasal-infused choline chloride on milk, urine, and fecal choline and choline metabolite yields in lactating cows.
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The time of whatever is legal is OK is ending. Our processors are demanding more quality and not necessarily paying for that quality. While this may not seem fair, that’s the way it is. Producing milk with low Standard Plate Count (SPC) is quite easy and just takes attention to details. Bacteria counts are a function of three things: cleaning, cooling, and cows, and usually in that order. Cleaning: Cleaning a milking system should be...
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The protein and fat content of milk varies throughout the year, which can affect cheese-making. Scientists will now investigate how the fat and protein compositions vary. Milk is not just milk. The composition of it varies throughout the year. This can affect taste and the way the milk is treated at the dairy – especially when making cheese. Knowledge about milk’s seasonal variation can be used by the dairy to finely tune cheese production. That is the reason why scientists are...
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The composition of concentrates is important for the frequency of visits to the automatic milking system (AMS) and the milk yield. Just like humans, cows also have their favourite dishes. The formulation and structure of the feed concentrate offered is important for how often the cow frequents the automatic milking system (AMS), how much of the feed she eats, and how much milk she produces. The formulation of the concentrate also has impact on its taste, according to results from...
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New Zealand government scientists will part-fund trials into a cattle treatment that may significantly increase milk production, according to Andy West, chief executive officer of state-owned AgResearch Ltd. The study with Ancare Scientific Ltd. will take a year and cost more than NZ$500,000 ($377,000), West told journalists at the opening today of the nation's Fieldays agricultural fair. The product may lift milk production as much as 10 percent, Ancare Scientific Managing Director...
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Cows that graze on fresh pasture produce milk with higher levels of antioxidants and beneficial fatty acids, such as conjugated linoleic acid and omega-3’s, as shown by a recently published study from Newcastle University in the UK. “Grazing dairy cows on grass or grass and clover swards produces milk with a healthier fatty acid profile and higher levels of fat soluble vitamins and antioxidants,” notes Gillian Butler, livestock project manager for the Nafferton Ecological...
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This paper reports the decline in milk production of buffaloes after getting conceived. The experimental buffaloes were selected in NWF province of Pakistan. Complete milk yield records for 48 weeks of lactation were obtained for 465 pregnant and 179 non-pregnant buffaloes. Model-1 to 3 were used to find out the factors affecting milk yield reduction due to pregnancy. Model 4 was used to modulate milk yield reduction with the onset of pregnancy at medium sized private farms comprising...
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A new study by Newcastle University proves that organic farmers who let their cows graze as nature intended are producing better quality milk. The Nafferton Ecological Farming Group study found that grazing cows on organic farms in the UK produce milk which contains significantly higher beneficial fatty acids, antioxidants and vitamins than their conventional ‘high input’ counterparts. During the summer months, one of the beneficial fats in particular – conjugated linoleic acid,...
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Packaged, reduced-fat milk was subjected to a 20 min/day temperature cycle during a 7-day refrigeration period to determine the effect on milk quality. Temperature cycling did not affect the compositional or microbial counts in reduced-fat milk stored in various package sizes. Analysis of headspace compounds during the 7 days of storage, however, showed that benzaldehyde, 2-butanone, 2-heptanone, hexanal, and octanal concentrations significantly changed, indicating that milk flavor was altered....
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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Progressive dairy farmers aim to increase herd milk yield while improving production efficiency. However, zero payments for over-quota production, surplus skim milk powder on the domestic market and poor cull cow prices have created a precarious situation. More than ever, producers must carefully manage production to avoid shipping over-quota milk. Genetics can play a huge role in milk production management, but only as a long-term strategy. Over a short period, milking frequency and...
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Last summer, the Milk Genomics Initiative revealed the presence of large genetic variation in fat composition of bovine milk. The Milk Genomics Initiative studies the genetic background of detailed milk composition and is a collaborative project between Animal Breeding and Genomics Centre (ABGC) of Wageningen UR (WUR) and the Dairy Science and Technology Group of WUR, funded by WUR, HG, NZO and STW. The DGAT1 gene was shown to be a major gene involved in the variation in...
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Boosting Dairy Cow Performance: The Story Behind a Natural Nutritional Solution
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Biofilm is made from bacterial cells that can elevate the standard plate count and decrease the quality of milk as it flows through the pipeline. Biofilms are everywhere, from the plaque on your teeth to the slime on rocks in a creek to the slime that forms on the inside of a vase holding flowers. The medical and industrial communities have taken considerable interest lately in what biofilms are made of, how they form and how they thrive in adverse conditions. ...
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Milk quality is never an accident...it takes careful planning and implementation. Low cell count herds have protocols and procedures that address dry cow management, cow handling, facilities, milking procedures and udder preparation. Although some of the particulars vary, the basics are the same. Having procedures in place that would result in milking clean, dry, well stimulated teats is a key. There is no magic bullet to accomplish this, but here are some suggestions....
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Effects of dietary rumen-protected, ruminal-infused, or abomasal-infused choline chloride on milk, urine, and fecal choline and choline metabolite yields in lactating cows.
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A survey of milking equipment in Florida revealed that many of the pulsators and vacuum controllers were not functioning properly. Research has demonstrated that major mastitis problems can occur when cows are milked with malfunctioning pulsation and vacuum controllers. The most common cause of these malfunctions, is a lack of regular maintenance. If you have not performed these maintenance chores in some time, now would be a good time to start. Routine performance and use of the schedule on...
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Proper milking procedures are important for the prevention of mastitis and for insuring complete milk removal from the udder. Mastitis can decrease total milk production by 15 to 20%. To minimize loss and achieve maximum milk yield, a practical milking management scheme should be followed. The term "milking management" includes care for the environment in which cows are housed or pastured. The dairy cow should have a clean, dry environment. This helps reduce the potential for...
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