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Showing 1 to 20 of 22 for “"milk urea nitrogen"”.
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Utilização do grão tostado de soja (Glicine max (L) Merril) na alimentação de vacas em lactação
… and kept under steeping were included in isonitrogenous and isocaloric lactating dairy cows rations and evaluated in comparison to raw soybeans, with two other protein sources as references. There were no differences (P>0,05) between the roasted and raw soybeans diets related either to dry …
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Nitrogênio Ureico no Leite (NUL) e no Plasma (NUP) de vacas leiteiras suplementadas com níveis crescentes de proteína bruta no concentrado
… protein, lactose, total solids and dry defatted milk extract with increasing levels of crude protein (12; 14, 16 and 18%) in the concentrate supplied to dairy cows under grazing. The values of milk urea nitrogen (NUL) and plasma urea nitrogen (NUP) obtained, had a linear increasing effect …
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Starch Digestion and Phosphorus Excretion in Lactating Dairy Cows
… P from an organic source. Total collection of milk, urine, feces, and feed were sampled each period, while rumen fluid was sampled on d 18. Excretion of feces, urine, P, and N was lower in cows fed SF than in cows fed DG. Milk yield was unaffected by diet despite a lower DMI by cows fed SF. …
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Offering sodium bentonite and sodium bicarbonate free-choice to lactating dairy cattle
… among diets for blood and fecal observations or milk protein. Urine specific gravity was lower in both breeds when sodium bicarbonate was force-fed. Holsteins force-fed sodium bicarbonate had greater intake and milk production than Holsteins not force-fed. In Jerseys, milk urea nitrogen (MUN) …
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Canola Meal Replacing Dried Distillers Grains with Solubles in Diets for Lactating Dairy Cows
… intake. An increase in CM had no effect on milk production. Milk protein concentration, protein yield, fat concentration and fat yield were similar for all diets. Lactose concentrations tended (P < 0.10) to be lower with combination diets and tended to be higher for primiparous cows. There …
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Effects of Replacing Forage Fiber with non-Forage Fiber in Lactating Dairy Cow Diets
… as DDG replaced corn silage in the diet. Milk protein percentage, protein yield, milk lactose percentage and lactose yields were increased. Milk fat percentage, fat yield and feed efficiency were decreased as the percentage of DDG increased in the diets. Milk yield, energy-corrected milk …
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Slow-Release Urea and Highly Fermentable Sugars in Diets Fed to Lactating Dairy Cows
… their interaction with a source of nonprotein nitrogen, calcium chloride urea. Eight multiparous and four primiparous Brown Swiss cows (96 ± 46 d in milk) were blocked by parity and assigned randomly to three 4 x 4 Latin Squares with a 2 x 2 factorial arrangements of treatments. Basal diets …
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The Feeding Value of Corn Distillers Solubles for Lactating Dairy Cows
… was similar (P > 0.10) for all diets. Milk yield (33.8, 36.2, 35.5, 36.0, and 36.0 kg/d) tended (P < 0.10) to be higher for diets 2 to 5 than for diet 1 while yields of fat (1.03, 1.02, 1.04, 1.06, and 1.04 kg/d) and protein (0.99, 1.03, 1.01, 1.03, and 1.04 kg/d), fat percentage (3.04, …
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Soybean Meal Substitution with a Microbial Protein Source in Dairy Cow Diets
… KY) in substitution for soybean meal on milk production, dry matter intake, rumen, and blood parameters of high producing dairy cows. Sixteen Holstein cows (twelve multiparous and four primiparous) with 93 ± 37 DIM were used in a 4 x 4 Latin square design with four 28 d periods. Cows were …
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Use of Newly Developed Blended Feed Supplement on Rumen Parameters and Milk Fat in Dairy Cows
… synchronization, and its impact on milk production and nitrogen utilization, with the aim of finding an alternative inexpensive supplement source for dairy cows instead of bypass fats and proteins. BFS was compared with conventional protein (canola meal) and energy (barley grain) …
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Replacing Corn and Soybean Meal in Lactating Dairy Cow Diets with Field Peas (Pisum Sativum)
… sativum L.) in lactating dairy cow diets on milk production, dry matter intake and ruminal characteristics. The experiment used 16 lactating Holstein dairy cows (nine primiparous and seven multiparous) in a 4 x 4 Latin square design with 28 d periods. Cows were blocked into squares by parity, …
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Effectiveness of canola meal as a source of rumen-undegraded protein for dairy cows
… and in Europe. Despite the positive responses in milk production and nitrogen (N) utilization efficiency observed when soybean meal (SBM) is replaced with CM as the main protein supplement in dairy cow diets, it is unclear if the responses are due to a ruminal effect, a post ruminal effect, or a …
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Partitioning of nitrogen by lactating cows fed diets varying in nonfibrous carbohydrate and rumen undegradable protein
… multiparous Holstein cows, averaging 44 days in milk and previously fitted with rumina1 and duodenal cannulae, were utilized in a 4 x 4 Latin square design to evaluate effects of dietary nonfibrous carbohydrate (NFC) and rumen undegradable protein (RUP) on metabolic and lactational parameters. …
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Ruminal Nitrogen Recycling and Nitrogen Efficiency in Lactating Dairy Cattle
Excess nitrogen (N) excretion from animal agriculture results in reduced air and water quality, and poses a risk to human health. Although the dairy industry utilizes milk urea N (MUN) to monitor protein feeding and N excretion, phenotypic diversity among cows may influence MUN and thus bias feed …
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An Evaluation of Feeding a Blend of Essential Oils and Cobalt Lactate to Lactating Dairy Cows
… in southwest Minnesota equipped with two robotic milking units. Phases 1 and 2 were cross over design trials with two pens. Cows were housed in two freestall pens (57 ± 2 cows and 59 ± 3 cows for treatment (EOC) and Control pens, respectively) and were evaluated for cow parity (2.65 ± 1.52 and …
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The use of lactic acid bacteria as methane mitigation strategies in ruminants
… treated with LAB inoculated silage produced milk with high lactose content (4.6%, P<0.05), reduced milk urea nitrogen between weeks 2 and 5 of the animal intervention (P< 0.05), and greater free fatty acids (9.92%, P <0.05). Taken together, the results of this thesis demonstrate that LAB …
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Effects of goat phenotype score on milk characteristics and blood parameters of indigenous and improved dairy goats in South Africa
… system (PTS), a new concept, in evaluating milk yield and constituents in different goat genotypes (Indigenous, British Alpines, Saanen and Toggenburg) raised in small scale production systems. Strategic decisions of small scale African farmers are mostly based on visual appraisal or body …
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Relationships among nutritional regimen, metabolic disorders, reproduction, and production in dairy cows during the transition period
… did CE. There was no statistical difference for milk production in the first 4 wk postpartum between cows fed CE or HE prepartum. Cows fed HE during CU had greater milk fat concentration than cows fed CE on wk 2, 3, and 4. Cows fed HE during CU had higher protein concentration during wk 3 and 4 …
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Investigation of the Role of Amide I to Amide II Ratio and Alpha Helix to Beta Sheet Ratio of Faba Bean Seeds in the Determination of Microbial Protein Synthesis and Animal Performance and Metabolism in Ruminant Livestock Systems.
… P = 0.01), true protein supply (DVE), and feed milk value (FMVDVE) (r=-0.82, P < 0.01). In the in vivo trial, the starch intake was increased with TMR_15 and TMR_30 compared to TMR_0 (linear P < 0.01), but no significant differences were observed on the dry matter (DM), organic matter (OM), CP, …
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Effects of chromium supplementation on dam performance and progeny growth and development
… metabolism in gestation and increase subsequent milk production, thereby increasing weaning weights of calves from dams supplemented with Cr-prop compared to those not supplemented with Cr-prop. Furthermore, we hypothesized that feeding Cr-prop to steers in the feedlot would increase growth …
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