Adequate ration balancing is a crucial component of a dairy farm budget. Undetected nutrient deficiencies or excesses can have different and variable effects on cows’ performance and health. Nowadays more feed ingredients are available to be included in dairy diets.

With feed comprising the largest operating expense, nutrient composition of feed ingredients and feeding strategies are the key profit drivers in modern dairy farms. The DKC’s Feed Library publishes recent research on the main feeds included in dairy cattle diets.

LATEST ARTICLES

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Is BMR sorghum silage a good replacement of corn silage?

Sorghum is a tropical grass grown primarily in semiarid and dry regions. It has become an important cereal crop because it is heat and drought tolerant. As forage, sorghum hybrids with the brown midrib (BMR) gene are becoming popular in the U.S. because their lower water requirement compared with corn. Average starch concentration in BMR sorghum silage is lower than in corn silage; however, fiber and fiber digestibility contents are very similar in these forages.

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pomegranate-post

Pomegranate pomace: nutrient composition and antioxidant activity

Pomegranate trees (Punica granatum L.) originate from East Asia and are traditionally grown in semiarid and subtropical areas. Pomegranate fruit consists of three parts: the arils (about 40% of the fruit weight); seeds (10%); and the peels which include the husk and interior network membranes (50%). During the industrial manufacturing of pomegranate juice, large amounts of co-products are produced.

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Feeding-calcareous-marine

Feeding calcareous marine algae as a rumen buffer

Rumen buffers such as sodium bicarbonate are commonly included in lactating cow diets to stabilize rumen pH. Recently, calcareous marine algae have been used for buffering dairy diets. Lithothamnion calcareum is a red alga of the Corallinacea family whose main feature is the formation of calcium and magnesium carbonate precipitates in its cell walls. Calcium and magnesium are the major minerals of this alga, and other trace elements include iron, manganese, boron, nickel, copper, zinc, molybdenum, selenium, and strontium.

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Soybean meal or canola meal in combination with distillers’ grains?

Soybean meal or canola meal in combination with distillers’ grains?

Soybean meal, canola meal, and corn distillers’ grains are good sources of protein for dairy cows. Since they have different rumen undegradable protein (RUP) content and amino acid profile, feeding diets that include two or three protein sources is the best strategy for covering amino acids requirements in high producing cows.

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Effects of feeding extruded linseed on fertility of dairy cows

Effects of feeding extruded linseed on fertility of dairy cows

Flax is a cool climate crop grown mainly for production of fiber and food. Its seed, linseed, is rich in oil which contains more than 50% of the essential fatty acid alfa-linolenic acid (omega-3). Linolenic acid is converted into eicosapentaenoic acid and docosahexaenoic acid, precursors of eicosanoids such as prostaglandins.

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