Biomaterial Database

Effect of feeding calcareous marine algae to Holstein cows prepartum or postpartum on serum metabolites and performance. 2015

Z Wu, and J K Bernard, and S J Taylor

Department of Animal and Dairy Science, University of Georgia, Tifton 31793.

Thirty-six multiparous Holstein cows and 12 springing heifers were used in a 9-wk randomized design trial to determine the response of cows fed calcareous marine algae (CMA) beginning 3wk prepartum or after parturition through 6wk postpartum on dry matter intake (DMI), blood and urine metabolites, and milk yield and composition. Within parity and expected calving date, cows were assigned randomly to 1 of 4 treatments with a 2×2 factorial arrangement. Prepartum diets were supplemented with calcium carbonate (CON) or 50g/d of CMA with a resulting dietary cation-anion difference of -5.17 and -3.99mEq/100g, respectively. Postpartum diets were formulated to provide either 317g/d of sodium bicarbonate and calcium carbonate (NBC) or 100g/d of CMA, providing a dietary cation-anion difference of 35.58 and 15.64mEq/100g, based on 25kg/d of DMI, respectively. No differences were observed in prepartum DMI or postpartum DMI, milk yield, percentage of milk fat, protein, lactose, and solids-not fat among treatments. Milk protein yield was higher for cows fed CMA prepartum compared with CON. Interactions of prepartum treatment and week were observed for yield of milk fat and energy-corrected milk because of higher yields for cows fed CMA during wk 2 and 6 compared with CON. Serum Na concentrations were greater for cows fed CON prepartum or NBC postpartum compared with CMA. Postpartum urinary concentrations of Na exhibited an interaction among treatments and were higher for CON-NBC and CMA-NBC compared with CON-CMA and CMA-CMA. Similar interactions of treatments were also observed for serum urea N and creatinine postpartum. Postpartum urinary K concentrations were higher for cows fed CMA postpartum compared with NBC. Results of this trial indicate that feeding cows CMA prepartum does not affect DMI or serum metabolites prepartum, but does support higher milk protein yield. Performance and serum metabolite concentrations of cows fed CMA postpartum were comparable with that of cows fed NBC, except for changes in serum and urinary concentration of Na, which was a function of dietary Na intake.

UI	MeSH Term	Description	Entries
D007774	Lactation	The processes of milk secretion by the maternal MAMMARY GLANDS after PARTURITION. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including ESTRADIOL; PROGESTERONE; PROLACTIN; and OXYTOCIN.	Lactation, Prolonged,Milk Secretion,Lactations, Prolonged,Milk Secretions,Prolonged Lactation,Prolonged Lactations
D008892	Milk	The off-white liquid secreted by the mammary glands of humans and other mammals. It contains proteins, sugar, lipids, vitamins, and minerals.	Cow Milk,Cow's Milk,Milk, Cow,Milk, Cow's
D008894	Milk Proteins	The major protein constituents of milk are CASEINS and whey proteins such as LACTALBUMIN and LACTOGLOBULINS. IMMUNOGLOBULINS occur in high concentrations in COLOSTRUM and in relatively lower concentrations in milk. (Singleton and Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed, p554)	Milk Protein,Protein, Milk,Proteins, Milk
D011188	Potassium	An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D001806	Blood Urea Nitrogen	The urea concentration of the blood stated in terms of nitrogen content. Serum (plasma) urea nitrogen is approximately 12% higher than blood urea nitrogen concentration because of the greater protein content of red blood cells. Increases in blood or serum urea nitrogen are referred to as azotemia and may have prerenal, renal, or postrenal causes. (From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984)	BUN,Nitrogen, Blood Urea,Urea Nitrogen, Blood
D002119	Calcium Carbonate	Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.	Aragonite,Calcite,Chalk,Limestone,Marble,Milk of Calcium,Vaterite,Calcium Milk,Carbonate, Calcium
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D003404	Creatinine		Creatinine Sulfate Salt,Krebiozen,Salt, Creatinine Sulfate,Sulfate Salt, Creatinine
D004032	Diet	Regular course of eating and drinking adopted by a person or animal.	Diets
D005260	Female		Females