Download or read book Impact of Grazing Management Monensin Supplementation and Weed Density on Beef Cow Calf Performance and Pasture Production written by Leanna Duppstadt and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Monensin (Rumensin 90, Elanco Animal Health; Greenfield, IN) is a direct-fed ionophore that alters ruminal fermentation and has been shown to increase energy efficiency by altering VFA production in the rumen, resulting in improved forage utilization. This suggests that monensin has the potential to alleviate the effects of a cool-season perennial pasture summer slump. Weeds compete with desired forages for natural resources and can have a negative impact on livestock and pasture production. Grazing management strategies are implemented to encourage desirable forage growth and discourage the growth of undesirable species; suggesting that the implementation of rotational grazing could alleviate competition with weeds. In experiment 1, 32 spring-calving, Angus-based cow-calf pairs were stratified into pastures based on body weight (BW) and blocked by age. The study was conducted using 2x2 factorial, for 3 years (2015-2017) with 56-d grazing seasons each year. All cows were limit-fed wheat mid-based pellets with (MON; 200 mg/cow/day) or without monensin (NOMON). Treatments included 1) continuous grazing without monensin supplementation (CONT NOMON); 2) continuous grazing with monensin supplementation (CONT MON); 3) rotational grazing without monensin supplementation (ROT NOMON); and 4) rotational grazing with monensin supplementation (ROT MON). Cows in ROT were rotated every 7-d and desired forage height was maintained by put-and-take stocking. Precipitation was highest in June and July for Years 1 and 3, and lowest in Year 2. Temperatures were highest in July and August of Year 2 and this in combination with low precipitation created the ideal conditions for a true summer slump in PA in 2016.There were no grazing x supplement interactions, nor were there main effects of monensin inclusion or grazing management for Years 1 and 3 (P = 0.80 and P = 0.77, respectively). In Year 2, all cows lost BW and body condition score (BCS) from d 0 to 56, but cows on ROT receiving MON lost the least (grazing x supp: BW (P = 0.02) and BCS (P 0.01)).There were no main effects or interactions for carrying capacity (CC) or stocking rate (SR) in Years 1 and 3. Cows on ROT grazed pastures and cows receiving MON had greater CC and SR for grazing treatment (P = 0.07) and supplement treatment (P

Download or read book Utilisation of grazed grass in temperate animal systems written by J. Murphy and published by BRILL. This book was released on 2023-08-28 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading authorities from wide geographical regions of the globe will review the most up-to-date information in relation to temperate grasslands. Topics covered are: nutritive value of pasture; plant characteristics conducive to high animal intake and performance; modelling of both grass growth and animal production and intake in grazing systems; optimising financial returns from grazing; decision support systems; optimal animal breeds and traits for grazing systems; challenges and opportunities for animal production in the immediate future .In addition, short papers will present the most recent research on the above mentioned topics. One paper will present a comprehensive overview of animal production from pasture in Ireland This book will be of interest to grassland and ruminant production scientists, mathematical modellers working on grazing systems, extension workers, students of agriculture and animal production and progressive livestock farmers.

Download or read book Monensin for Cows Grazing Low Quality Dry Winter Range Grass written by R. P. Lemenager and published by . This book was released on 1977 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ruminant animal is unique in that it can convert large quantities of cellusose into high quality human food. This is possible due to the large population of microorganisms in the rumen. Because of this capability, ruminants will occupy an even more important role in world food prodution in the future., especially in areas where land is not suitable for crop production. However, the need for increased animal efficiency and /or performance is becoming more critical as the food supply becomes more limited, and as the demand for grain and other plant products for human comsumption increases. Monensin, a biologically active compound produced by Streptomyces cinnamonensis has been shown to improve feed efficiency when added to high concentrate feedlot rations. Monensin-fed feedlot cattle tend to conume less feed but gain at a similar rate as non-monensin fed cattle. When fed to cattle grazing green forage, monensin has increased both gain and efficiency. Since forage is the principle fedd source for the beef cow, any compound which could alter efficiency and /or performance of grazing cows could affect the profitability of the beef cow enterprise. Information is not available, however, on the effectivevess of monensin when fed to range beef cows grazing low quality range grass. The purposes of this study were: 1) to evaluate the effect of monensin on milk production and milk composition for lactating range cows; 2) to evaluate the effect of monensin on forage and supplement intake and 3) to estimate the effect of monensin on rumen turnover rates and rumen components.

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 Cows Calves and Grass written by and published by . This book was released on 1951 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Pasture Management and Animal Nutrition to Optimize Beef Cattle Production in Grazing Systems written by Elieder Romanzini and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand of meat requires the adoption of sustainable intensification livestock systems, applying nutritional strategies to reduce any negative contribution from beef cattle to global warming and, at the same time, to increase animal performance and productive efficiency. The pasture management practices and feed supplementation, mainly using non-edible feed with less costs, could minimize environmental and social impacts, resulting in higher productivity with less inputs utilization. Tropical grass submitted to grazing management according to plant height present high soluble protein and low levels of indigestible neutral detergent fiber contents. Energy or rumen undegradable protein supplementation, associated to alternative additives to antibiotics effects, such as probiotics, tannin, essential oils and saponin, can help to fully exploit the animal genetic potential and nutrient utilization efficiency, which decreases greenhouse gases emissions and improves animal performance. Hence, more information about these tools can make the livestock systems in tropical pasture more efficient and eco-friendlier.

Download or read book Effects of Grazing Management on the Distribution of Forage Production Forage Quality and Animal Performance written by Harun Djuned and published by . This book was released on 1982 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Different Grazing Systems on Pasture Production written by Ronald Dobson Harkness and published by . This book was released on 1958 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Cattle Management for Systems with Limited Perennial Pasture written by Morgan T. Grabau and published by . This book was released on 2021 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the conversion of perennial pasture and hay land to cropland in the western corn belt region, alternative methods of cow/calf management are being used to decrease reliance on perennial forages. These include grazing corn residue and feeding cow/calf pairs in confinement. Previous research has shown that limit-feeding a diet of low-quality forage and energy-dense co-products to cows in confinement is cost effective. However, this strategy may limit the intake of the young calf and thus their performance. A study was conducted to evaluate the impacts of two alternative calf management strategies when pairs are in confinement, early weaning or creep feeding. The results suggest that providing a separate creep diet containing higher quality forage to the calf is a cost effective option as opposed to keeping cows and calves as pairs providing the limit fed diet containing low quality forage, or weaning calves early and feeding the cow and calf separately. Winter grazing of corn residue is a common practice, whereas grazing into spring is rare due to concerns about soil compaction and negative effects on subsequent crop yield. A study was conducted to evaluate the impacts of spring grazing and stocking density when targeting a grazing rate of consumption of 50% of the leaf and husk. The results suggest that grazing in the spring when the soil is thawed and wet results in negligible compaction. Increased stocking density in the spring when grazing corn residue does increase surface roughness and soil penetration resistance, but these effects were minimal. In fact, subsequent soybean yield was increased in a high yielding irrigated field due to grazing at both a normal and high stocking density in the spring. Combining confinement of cows with grazing residue may be a solution to maintain cow herds without utilizing perennial forages.

Download or read book Effects of Distillers Grains Plus Solubles and Monensin Supplementation on Yearlings Grazing Smooth Bromegrass written by Tyler Hasenauer and published by . This book was released on 2014 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplementing cattle on grass is an effective way of increasing animal efficiency and grass utilization. Distiller grains plus solubles (DGS) supplementation has been repeatedly proven as an effective supplement by providing ruminally undegradable protein (RUP), fat, and highly digestible fiber. The effects of monensin supplementation on grazing cattle are variable. Although some research has shown a decrease in forage organic matter intake (FOMI), the popular belief is monensin increases ADG while maintaining DMI in a grazing situation. Two experiments were designed to observe the effects of DGS and monensin supplementation on cattle grazing smooth bromegrass. In the first study, ADG and modified distillers grains plus solubles (MDGS) intake were measured for cattle grazing smooth bromegrass. Steers were supplemented MDGS at 0.05, 0.4, 0.6, or 0.8% BW and were either given 0 or 200 mg monensin. In the second study, FOMI was estimated when cattle grazing smooth bromegrass were supplemented with MDGS at 0.4% BW was given 0 or 200 mg monensin. In the first study, monensin did not affect ADG (P = 0.53). There was a monensin x MDGS intake interaction (P = 0.05). Monensin decreased MDGS consumption only when supplement was offered at 0.8% BW (P = 0.01). In the second study, monensin tended to decrease FOMI by 9% (P = 0.10).

Download or read book Cow and Calf Performance as Affected by Grazing Management written by Llewellyn Leo Manske and published by . This book was released on 2008 with total page 28 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 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Canadian Range Management 1978 1980 written by John F. Vallentine and published by Phoenix, Ariz. : Oryx Press. This book was released on 1981 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grazing Method Effects on Forage Production Utilization and Animal Performance on Nebraska Sandhills Meadow written by Miles D. Redden and published by . This book was released on 2014 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mob grazing using ultrahigh stocking densities is promoted as a tool to increase the health and productivity of grasslands by increasing nutrient cycling and soil organic matter. Mob grazing can be defined as a strategy in which area available to grazing animals is restricted to achieve stocking densities of 200,000 kg/ha or greater. Objectives were to determine herbage production, utilization, and cattle weight gains among ultrahigh stocking density grazing and more conventional grazing methods on a Sandhills subirrigated meadow. Treatments included two replications of each of the following: four-pasture rotational grazing with two occupations per pasture in an 80-day grazing season (4-PR-2), four-pasture rotational grazing with one occupation per pasture in a 60-day grazing season (4-PR-1), and a mob grazing system with one occupation per pasture in a 60-day grazing season (MOB). In each of the four years (2010 -- 2013), yearling beef cattle grazed the 4-PR-2 from mid-May through early August and the 4-PR-1 and MOB treatments from early June through early August. Stocking rates were equal among treatments within years but varied among years dependent on forage production. Stock densities were 225,000 kg/ha, 7000 kg/ha, and 5000 kg/ha for the MOB, 4-PR-1, and 4-PR-2 respectively. Herbage mass in grazing exclosures was used to estimate aboveground production in 2012 and 2013. Trampling and harvest efficiency were estimated every other week in the MOB and each time cattle changed pastures in the 4-PR-1 and 4-PR-2 during 2010, 2011, and 2013. Aboveground production did not differ among treatments. Average daily gains of MOB were low (0.2 kg/head/day) compared to 4-PR-2 gains (0.8 kg/head/day). Low gains on the MOB pastures likely were related to high levels of trampling and poor forage quality late in the grazing season.

Download or read book Effect of Monensin on Cow Performance when Supplementing Winter Range with Two Levels of Energy written by Martha P. Katz and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Monensin and Monensin containing Supplements on Performance of Steers Grazing Winter Wheat Pasture written by Brian George Fieser and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Greener Pastures on Your Side of the Fence written by B. Murphy and published by . This book was released on 1994 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: