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Showing 1 to 20 of 28 for “"DM intake"”.
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Seasonal differences in apparent digestibility and intake of tall fescue by horses
… feces. Apparent digestibilities of dry matter (DM), acid detergent fiber (ADF), neutral detergent fiber (NDF), crude protein (CP), and cellulose were estimated using indigestible NDF as an internal marker. Forage DM intake was calculated using the formula (fecal output/(100- % forage DM …
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Utilization of wheat straw in rations for lactating dairy cows.
… chopped wheat straw does not adversely affect DM intake or milk yield and increase milk fat percentage. Replacing half of the long alfalfa with chopped alfalfa also apparently improved lactational performance although not as dramatically as that of chopped straw. Ammoniation of wheat straw did …
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Ensiling characteristics, digestibility and palatability of tropical grasses as affected by growth stage, chopping length and additives
… study. Apparent digestibility of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were higher (P<.01) for 2 wk compared to 3-wk growth. Chopping the grass before ensiling increased (P<.01) the apparent digestibility of DM, CP, NDF, ADF and …
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Flavor effects on feed consumption and performance of dairy cattle in early lactation
… the most preferred, highest total dry matter (DM) intake, being dropped after 5, 4, 3 and 2 d feeding segments. Sweet (sucrose, 1.5% of diet DM), sour (HCl, 1.25%), bitter (urea, 1%), and salt (NaCl 4%) were tested in Trial 1. Four of six cows ranked sweet first and mean (n = 6) intake was …
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Effects of Dietary Cation -Anion Difference on Performance, Acid-Base Status, and Nitrogen and Macromineral Metabolism of Lactating Dairy Cows
… to compare two DCAD4 (22 and 47 meq/100 g of DM) in a completely randomized design. An additional 2.3 kg of alfalfa hay was fed during the first 5 days postpartum, and then milk, blood, and urine samples were collected weekly for 6 weeks. Repeated-measures, with an extra between-cow effect, …
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Influence of Dietary Fish Oil on the Concentration of Conjugated Linoleic Acid and Other Healthful Fatty Acids in Milk Fat from Lactating Dairy Cows
… were fish oil at 0, 1, 2, and 3% of ration DM. Elevating fish oil concentrations in the diets altered milk yield, feed intake, and milk fat. Linear decreases (P < 0.01) were observed for DM intake (28.8, 28.5, 23.4, and 20.4 kg/d) and milk fat (2.99, 2.79, 2.37, and 2.30%) for 0% to 3% …
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Lactational Evaluation of Recombinant Bovine Somatotropin with Corn and Barley Diets
… for cows injected with somatotropin, while DM intakes (21.4, 22.4, 21.4, and 22.3 kg/d) were similar. Percentages of milk fat (3.39, 3.12, 3.21, and 3.66) and protein (3.43~ 3.29, 3.28, and 3.43) varied. Lactose, SCC, and body weights were similar for somatotropin and dietary treatments. …
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Barley silage harvested at boot and soft dough stages for lactating cows
… and 25 cm (SD-Hi) above ground. Yields (kg DM/ha) were 3690, 8750 and 6287 for boot, SD-Lo and SD-Hi respectively. Digestibilities (%) of DM, CP and ADF were 74.7, 74.5 and 70.8 for boot; 61.9, 50.4 and 44.7 for SD-Lo; and 62.3, 47.2 and 49.7 for SD-Hi, respectively. Calculated TDN was 71.2, …
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Influence of endophyte infection of tall fescue with and without white clover on performance, intake, and bite size in steers during the grazing season and subsequent performance in the feedlot
… performance, serum minerals and prolactin, intake, digestibility, bite size, and biting rate. Grazing animal performance was measured April to October, 1989 and 1990, at two locations in VA. Effects of grazing low (<5%) and high (>70%) endophyte infected tall fescue, with and without white …
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Biohydrogenation, postruminal flow, and apparent digestibility of dietary lipids in lactating Holstein cows
… with casein and corn syrup solids. Fatty acid intake and flow to the duodenum increased with fat supplementation. Total tract apparent fatty acid digestibility was reduced by partially hydrogenated tallow. Apparent digestibility of C<sub>18:0</sub> in the small intestine quadradically decreased …
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Slow-Release Urea and Highly Fermentable Sugars in Diets Fed to Lactating Dairy Cows
… NEL and contained 35% of dietary dry matter (DM) as com silage, 15% alfalfa hay, 34% of a varying concentrate mix of ground shelled com and soybean meal (SBM) and 16% of a constant premix. The constant premix contained equal proportions of soybean hulls, heat treated soybean meal, com …
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Growth, body composition and costs of feeding Holstein heifers
… and subcutaneous fat deposition but reduced feed intake and ribeye area. When moving grazing heifers to drylot a total mixed ration with fishmeal or soybean meal as protein sources gave similar responses. DM intake of grazing heifers ranged from 8.1 to 10.1 kg/d, vs 7.5 kg/d for arylot. …
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Lowering ruminally degradable protein in lacatating dairy cow diets
Lactating dairy cows convert 25 to 35% of intake N to milk N, and a part of the remaining N ends up in the environment, causing pollution. Dairy cows absorb amino acids available in the small intestine supplied mainly by digestion of microbial protein and ruminally undegraded feed protein (RUP). …
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Effects of Restricted Intake of Growing and Finishing Steers on Feedlot Performance and Carcass Merit
… design to evaluate the effects of restricting intake of finishing diets containing wheat middlings on site and extent of digestion. Level of intake had no effect on apparent or true rumen digestion of DM or OM. Feeding ad libitum hay resulted in 32.5, 33.4, and 36.9% decreases in DM, OM, and …
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Influence of dietary fat and protein on nutrient supply and utilization by the lactating bovine mammary gland
… fat supplementation and level of undegradable intake protein (UIP) could affect daily milk output and composition by influencing nutrient supply to the mammary gland. Three lactating Holstein cows (60, 68, and 74 d postpartum) were used in an incomplete 4 x 4 Latin square design (2 x 2 …
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Fecal consistency as related to dietary composition in lactating Holstein cows
… water consumption, apparent digestibilities of DM, AOF, NOF, and starch, and to quantitate whole corn kernel passage. Total mixed diets for both trials were formulated to contain 17% (LF) or 25% AOF (HF) with CP levels of: 15% (S15) and 22% (S22) with soybean meal (SBM) supplementation, or 22% …
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Energy and protein nutrition of ewes in late pregnancy
… and after the experimental period, haylage intake recorded daily and blood samples collected weekly for metabolite analysis. Lambs were weighed at birth, seven days old, approximately seven weeks old and at last at weaning. Supplemented ewes ate significantly less haylage than CTR ewes. …
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Nutritional evaluation of α-cyclodextrin using canine, hamster, and in vitro models
… to be valid for measuring fat bound to ACD. Intake of ACD was shown to be generally well tolerated by dogs and did not alter body weight (BW), body condition scores (BCS), or fecal scores. Intake of 6 or 12 g ACD daily decreased apparent nutrient digestibility and numerically reduced serum …
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Fermentation characteristics and nutritional value of different proportions of alfalfa and wheat straw ensiled with and without different additives
… straw were ensiled in the following proportions (DM basis): 0:100, 25:75, 50:50, 75:25, 100:0, 0:100 (urea-treated), with O and 5% dry molasses, and 0 and .1% microbial inoculant (Lactobaci]lus plantarum and Streptococcus faecium) in a 6 x 2 x 2 completely randomized design with a factorial …
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Maternal rumen-protected methionine supplementation alters dairy calf development, postnatal growth, plasma biomarkers, and liver one-carbon metabolism
… a basal control [CON; 1.47 Mcal/kg dry matter (DM) and 15.3% crude protein] diet with no added Met or CON plus rumen-protected Met (MET; Mepron® at 0.09% of diet DM) during the last 28 ± 2 d of pregnancy were used. A total of 39 calves were in CON and 42 in MET. At birth, calves were randomly …
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