Effects of Sodium Bicarbonate, Magnesium Oxide and Dried Sugar Beet Pulp in Diets of Dairy Cows on Milk Yield, Milk Composition and Rumen Fluid and Some Blood Parameters

Kaplan, Oktay; Deniz, Suphi; Karsli, Mehmet Akif; Nursoy, Hüseyin; Avcı, Mehmet

doi:10.3923/javaa.2010.1570.1574

Cited by 5 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Calcareous marine algae has also been added to lactating cow diets to prevent rumen pH depression (Bernard et al, 2014;Cruywagen et al, 2015). No previous work has been carried out on MM, but effects of conventional magnesium oxide in dairy cow diets have been examined by numerous authors (Thomas and Emery, 1969;Teh et al, 1985;Kaplan et al, 2010). According to a review conducted by Hu and Murphy (2005), SB had no effect on milk production or milk composition in diets that were based on alfalfa silage, alfalfa hay, barley silage, and wheat silage, but milk composition was improved in corn silage-based diets.…”

Section: Discussionmentioning

confidence: 99%

The effect of calcareous marine algae, with or without marine magnesium oxide, and sodium bicarbonate on rumen pH and milk production in mid-lactation dairy cows

Neville

Fahey

Gath

et al. 2019

Journal of Dairy Science

View full text Add to dashboard Cite

Two experiments were carried out to evaluate different dietary buffers and their influence on (1) rumen pH in dairy cows and (2) milk production in dairy cows. The supplements included were calcareous marine algae (CMA; Lithothamnion calcareum), with or without marine magnesium oxide (MM; precipitated magnesia derived from seawater), and sodium bicarbonate (SB). Dietary treatments in experiment 1 consisted of the control [32.9% starch and sugar, and 19.9% neutral detergent fiber from forage per kg of dry matter (DM)] including no dietary buffer (CON); the control plus 0.45% DM CMA (CMA); the control plus 0.45% DM CMA and 0.11% DM MM (CMA+MM); the control plus 0.9% DM SB (SB). Diets were formulated to a dry matter intake (DMI) of 18 kg per cow/d. Dietary treatments in experiment 2 also consisted of CON (28.3% starch and sugar, and 23% neutral detergent fiber from forage per kg of DM), CMA, CMA+MM, and SB and were formulated to achieve identical intakes of experimental ingredients (80 g of CMA, 80 g of CMA plus 20 g MM, and 160 g of SB per cow/d) with a DMI of 22.6 kg per cow/d. Experiment 1 used 4 rumen-cannulated dairy cows in a 4 × 4 Latin square design. Rumen pH was measured over five 2-h periods, following feeding, using rumen pH probes. In experiment 2, 52 multiparous and 4 primiparous cows (62.7 ± 3.4 d in milk) were assigned to 4 experimental treatments for 80 d. Both CMA treatments maintained a greater mean rumen pH than the CON during 4 of the 5 periods following feeding and the CON had a greater number of hours below rumen pH 5.5 compared with all other treatments. Dry matter intakes tended to be higher on the SB compared with CON. The CMA treatment increased the production of milk fat and protein yield (kg/d) compared with all other treatments. Both CMA and CMA+MM increased milk fat yield compared with CON but were similar to each other and SB. Protein yield was highest in the CMA treatment compared with CON, CMA+MM, and SB. All 3 buffer treatments increased milk fat concentration compared with CON but did not differ from each other. The SB treatment reduced milk protein concentration and milk production efficiency, energy-corrected milk per kilogram of DMI. Results indicate that the addition of CMA can benefit milk fat and protein production when included in diets based on typical feedstuffs of the northern European region. The use of CMA when compared with SB, in such diets, can increase milk protein production and milk production efficiency.

show abstract