Download or read book Effects of Fishmeal Supplementation on Metabolizable Protein of Beef Cows Grazing Winter Wheat Pasutre written by Jorge A. Rodela and published by . This book was released on 2017 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight ruminally and duodenally cannulated, angus-crossbred cows (665 ± 20.6 kg) grazing winter wheat pasture (WWP) were used in a complete randomized design to evaluate the effects of fish meal (FM) supplementation on forage intake, characteristics of digestion and metabolizable protein of cattle grazing WWP. The experiment was conducted from March 7 through March 19, 2016. Treatments consisted of cows grazing in a single pasture and supplemented with FM to provide: control, no RUP supplement (CON), or FM supplemented at a level calculated to supply 10% of the forage CP intake as RUP (FM). Supplemental FM was placed directly into the rumen cannula once daily at 0700 h. Forage DM, NDF, CP, total OM intake, OM intake expressed as g/kg of BW were not affected (P ≥ 0.44) by FM supplementation. Also, supplemental FM had no effects on microbial protein efficiency (P = 0.34), microbial protein synthesis (P = 0.70), feed protein bypassing rumen fermentation (P = 0.72), or total CP flowing to duodenum (P = 0.07). Moreover, true ruminal, or total tract digestibility of OM, NDF, and CP were not affected (P ≥ 0.38) by FM supplementation. Ruminal pH (6.37, and 6.43 ± 0.09 for CON and FM, respectively), total VFA production (50.2, and 49.7 ± 0.1.74 mM for CON and FM, respectively), acetate (74.4, and 74.6 ± 0.77 mol/100 mol for CON and FM, respectively), propionate (16.7, and 16.1 ± 0.62 mol/100 mol for CON and FM, respectively) and acetate/propionate ratio (4.49 and 4.69 ± 0.22 for CON and FM, respectively) were not affected by FM supplementation (P ≥ 0.49). Although FM supplementation did not decrease forage intake, it failed to improve MP of cows grazing WWP. The results indicate that improvements in performance of cattle grazing WWP should not be expected with supplementing FM at the level supplemented in this experiment

Download or read book Effect of Wheat Middling Supplementation on Metabolizable Protein of Heifers Grazing Winter Wheat Pasture written by Fathi M. Amraga and published by . This book was released on 2014 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight ruminally and duodenally cannulated, Angus-crossbred heifers (272 ± 19.2 kg) grazing winter wheat pasture (WWP) were used in a completely randomized design to evaluate effects of wheat middling (WM; offered at 0.4% of BW; as-fed basis) supplementation on metabolizable protein. The experiment was conducted from April 5 through April 19, 2013. Heifers grazed in a single WWP with supplements offered individually, once daily at 0700 h. Forage DM, total OM, NDF intake, and OM intake expressed as g/kg of BW were not affected (P [greater than or equal to] 0.11) by WM supplementation, and total CP intake (P = 0.03) increased with WM supplementation. Supplementation of WM increased the flow of OM, and CP (P [less than or equal to] 0.04) to the small intestine, but not the flow of NDF (P = 0.40). Feed protein flowing to the small intestine was not affected (P = 0.26) and microbial protein tended to increase (P = 0.10) with WM supplementation. Total tract OM, CP, and NDF digestibility were not affected (P [greater than or equal to] 0.13) by WM supplementation. Ruminal pH decreased and total VFA production increased (P = 0.01) with WM supplementation. Ruminal ammonia (P = 0.65), molar proportion of VFA (P [greater than or equal to] 0.11), and acetate to propionate ratio were not affected (P - 0.25) by WM supplementation. Supplementation of WM to cattle grazing WWP improves metabolizable protein by increasing microbial protein synthesis.

Download or read book Effects of Monensin Supplementation and Wheat Pasture Maturity on Forage Intake and Digestion Characteristics of Cows Grazing Winter Wheat Pasture written by Ulises A. Sanchez-Sandoval and published by . This book was released on 2018 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight Angus cross-bred cows (669 ± 23.2 kg of BW) fitted with duodenal and ruminal cannulas grazing winter wheat pasture (WWP) were used in a split-plot design to evaluate the effects of monensin supplementation and WWP stage of maturity on forage intake, digestive function, metabolizable protein, and ruminal fermentation. Supplemental treatment was the main plot, and stage of maturity was the subplot. Two levels of monensin supplementation: 1) Control (CON; 1.0 kgcow−1d−1 of wheat middling only), and 2) monensin (MON; CON plus 200 mg of monensin); and two stages of WWP maturity: 2) mid-March (MAR; March 13 to March 26; vegetative stage), and 2) early April) (APR; March 27 to April 8; heading stage) of 2017 were compared in a 2 x 2 factorial arrangement of treatments. Cows grazed in a single wheat pasture with supplements deposited directly into their rumens through their rumen cannula at 0700 daily. Monensin supplementation did not affect forage intake (P = 0.64), nutrient flow to duodenum (P ≥ 0.47) or total tract digestion expressed as kg/d (P > 0.45). Although, OM and CP flowing to the duodenum were not affected by monensin supplementation (P ≥ 0.53), microbial OM and microbial CP decreased (P = 0.03) with monensin supplementation. As stage of maturity of WWP advanced, forage intake (P = 0.02), ruminal digestibility of DM and OM (P ≤ 0.05) and total tract digestion expressed as kg/d (P = 0.01) decreased. Also, total duodenal CP (P = 0.01), microbial protein (P = 0.01), and feed protein (bypass protein; P = 0.03) flow decreased with advancing WWP stage of maturity. Monensin supplementation increased (P = 0.01) propionate (18.38, and 20.79 ± 0.55 mol/100 mol), and decreased (P = 0.01) the acetate: propionate ratio (3.26, and 2.73 ± 0.13). Ruminal pH (6.03 and 6.31 ± 0.08), acetate (54.6 and 58.3 ± 0.98 mol/100 mol), and acetate propionate ratio (2.52, and 3.48 ± 0.13) increased (P ≤ 0.04), and propionate (21.9, and 17.3 ± 0.56 mol/100 mol) decreased (P ≤ 0.05) with advancing WWP stage of maturity. Results suggest that monensin increases propionate without affecting forage intake, digestibility or metabolizable protein of cattle grazing WWP. Key words: metabolizable protein, microbial synthesis, monensin, winter wheat pasture

Download or read book Journal of Animal Science written by and published by . This book was released on 1991 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1991 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anais do Congresso Internacional de Pastagens written by and published by . This book was released on 2001 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Metabolizable Protein Supplementation and Intake on Cow Production written by Bryan Micheal Nichols and published by . This book was released on 2010 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2008, two-yr-old Angus and Simmental x Angus pregnant, non-lactating heifers (n = 120, initial BW = 448 " 36 kg) had individual feed intake determined using a GrowSafe feeding system. Dietary treatments were based on approximately 85% grass hay and 15% supplement. Supplements contained whole soybeans plus corn (102% MP) or dried distillers grains plus soybean meal (119% MP). After 35 d of intake measurement, heifers were placed into adjacent pens and fed their diets for an additional 50 or 82 d. Upon completion of the feeding trial, heifers were transported back to the ranch, managed as a single group, and production data were measured. Level of dietary MP had no effect (P> 0.17) on calf birthweight, adjusted 205-d weight, preweaning ADG, age at weaning, cow BW at calving, proportion of cows cycling at bull exposure, or proportion of cows to conceive. Dry matter intake per unit of BW 0.75 and RFI did not differ because of treatment and had no effect (P> 0.17) on any variables measured. In 2009, 24 of these heifers that had the highest and lowest RFI were selected to be fed a similar diet as in 2008 to determine the correlation of DMI per BW 0.75 and RFI between heifers (2008) and later as cows (2009). Cows were adapted to the diet for 10 d followed by a 70 d trial to determine individual feed intakes and weight gain. Dry matter intake per BW 0.75 was highly correlated (r = 0.71, P 0.01) between first and second parities, as was residual feed intake (r = 0.83, P

Download or read book Proceedings of the International Grassland Conference written by and published by . This book was released on 2001 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Crude Protein Supplementation to Beef Cattle Grazing Late Growing Season Native Range written by Landon Garrett Canterbury and published by . This book was released on 2016 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments evaluated the effects of altering dietary protein on beef cattle performance and nutrient excretion. In the first study, concurrent experiments were conducted to evaluate the effect of protein supplementation to beef cattle grazing warm-season shortgrass forage during the late growing season. For all Exp., treatments consisted of a supplemented group (1.32 kg of a 39% CP fed 3 times a week) and a non-supplemented control group. In Exp. 1, cow final BW (P = 0.24) and ADG (P = 0.38) were not affected by treatment. There was no difference (P = 0.97) in cow final BCS regardless of treatment. Calf ADG (P = 0.54) and weaning weight (P = 0.45) were not affected by treatment. In Exp. 2, cow final BW (P = 0.39) and final BCS (P = 0.81) did not differ between treatments. Cow ADG (P = 0.07) tended to be greater when supplemented with 0.22 kg CP per day. Calf ADG (P = 0.50) and weaning weight (P = 0.11) did not differ between treatments. In Exp. 3, heifer final BW (P = 0.17) was not different between treatments. Heifer ADG (P = 0.02) was greater for supplemented heifers. Supplementing protein to cattle grazing late season medium quality forage is advantageous for increasing ADG in replacement heifers and potentially beneficial to improve condition in lactating primiparous cows. In a separate study, a commercially available condensed tannin (CT) extract (ByPro; Silva Team, Ontario, CA) was included in a cereal grain-based diet at 3 levels (0, 1, or 2% of diet, DM basis). No group by treatment interactions was detected (P ≥ 0.18) among the response variables. Provision of CT did not affect (P ≥ 0.64) DM intake or apparent total-tract DM digestion. Nitrogen intake was not affected (P = 0.58) by inclusion of CT in the diet, but fecal N output increased (P = 0.04) at 2% CT inclusion compared with control. However, there was no difference (P = 0.36) in urine N output among treatments. Nitrogen retention was less than (P = 0.03) with 2% CT than 0 or 1% CT. Proportion of total N excreted in urine decreased (P = 0.03) with CT supplementation at 1 or 2% in the diet. Similarly the proportion of total N excreted in feces increased (P = 0.03) with 1 or 2% CT inclusion. Site of N excretion was shifted away from urine and toward feces when CT was included in a complete diet fed to beef cattle.

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Protein Supplementation on Performance of Growing Ruminants Grazing Wheat Pasture written by Mary Elizabeth Smith and published by . This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Supplementing Beef Cows Grazing Forages with Wheat based Dried Distillers Grains with Solubles on Animal Performance Forage Intake Rumen Metabolism written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrition Abstracts and Reviews written by and published by . This book was released on 1994 with total page 1600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrition and Feeding of Organic Cattle 2nd Edition written by Robert Blair and published by CABI. This book was released on 2021-04-28 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic cattle farming is on the increase, with consumer demand for organic milk and meat growing yearly. Beginning with an overview of the aims and principles behind organic cattle production, this book presents extensive information about how to feed cattle so that the milk and meat produced meet organic standards, and provides a comprehensive summary of ruminant digestive processes and nutrition. Since the publication of the first edition, global consumers have increasingly become concerned with the sustainability of meat production. Here, Robert Blair considers the interrelationships of sustainable practices and profitability of organic herds, reviewing how to improve forage production and quality, and minimizing the need for supplementary feeding using off-farm ingredients.

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Irish Journal of Agricultural and Food Research written by and published by . This book was released on 1994 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: