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Alfalfa silage

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https://www.readbyqxmd.com/read/30056665/altering-undf-through-additives-applied-in-corn-whole-barley-crop-and-alfalfa-silages-and-its-effect-on-the-yield-and-composition-of-milk-in-lactating-holstein-dairy-cows
#1
Seyed Mohsen Hosseini, Mohsen Danesh Mesgaran, Ali Reza Vakili, Abbas Ali Naserian, Ehsan Khafipour
Objective: We hypothesized that silage additives may alter the undigested NDF (uNDF) content through ensiling. Therefore, urea and formic acid applied to corn, whole barley crop (WBC) and alfalfa in order to change uNDF content of the ensiled forages. Methods: Six experimental diets at two groups of high uNDF (untreated corn and alfalfa silages (CSAS) and untreated whole barley and alfalfa silages (BSAS)) and low uNDF (urea-treated corn silage + untreated alfalfa silage (CSUAS), urea-treated whole barley silage + untreated alfalfa silage (BSUAS), untreated corn silage + formic acid-treated alfalfa silage (CSASF) and untreated whole barley silage + formic acid-treated alfalfa silage (BSASF)), were allocated to thirty-six multiparous lactating Holstein dairy cows...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30031582/effects-of-mixing-red-clover-with-alfalfa-at-different-ratios-on-dynamics-of-proteolysis-and-protease-activities-during-ensiling
#2
Xujiao Li, Jipeng Tian, Qing Zhang, Yun Jiang, Zhe Wu, Zhu Yu
This study was conducted to study the effects of ensiled alfalfa (Medicago sativa) and red clover (Trifolium pretense) at different ratios on dynamics of fermentation parameters, N distribution, protein fractions, and protease activities during ensiling. Alfalfa and red clover were harvested and wilted to 35 and 25% dry matter, respectively, chopped to 1 cm, mixed, weighed into 1.0-L buckets at a density of 700 g/L, and ensiled for 1, 3, 7, 15, and 30 d at 30°C. The treatments were mixing ratio of alfalfa to red clover at 100:0, 70:30, 50:50, 30:70, and 0:100 (R0, R30, R50, R70, and R100, respectively; fresh weight)...
July 18, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/30025046/implications-of-observed-and-simulated-soil-carbon-sequestration-for-management-options-in-corn-based-rotations
#3
Curtis J Dell, Hero T Gollany, Paul R Adler, R Howard Skinner, Robert W Polumsky
Managing cropping systems to sequester soil organic C (SOC) improves soil health and resilience to changing climate. Perennial crops, no-till planting, manure, and cover crops can add SOC; however, their impacts have not been well documented in the northeastern United States. Our objectives were (i) to monitor SOC from a bioenergy cropping study in Pennsylvania that included a corn ( L.)-soybean [ (L.) Merr.]-alfalfa ( L.) rotation, switchgrass ( L.), and reed canarygrass ( L.); (ii) to use the CQESTR model to predict SOC sequestration in the bioenergy crops (with and without projected climate change); and (iii) to use CQESTR to simulate influence of tillage, manure, cover cropping, and corn stover removal in typical dairy forage (silage corn-alfalfa) or grain corn-soybean rotations...
July 2018: Journal of Environmental Quality
https://www.readbyqxmd.com/read/30007807/validating-intrinsic-markers-and-optimizing-spot-sampling-frequency-to-estimate-fecal-outputs
#4
D L Morris, L R Rebelo, P A Dieter, C Lee
Indirect methods of spot sampling with intrinsic markers to estimate fecal output and nutrient digestibility often have been used in dairy nutrition research as alternatives to total collection of feces (TC) because of labor and expense. However, fecal output and nutrient digestibility estimated from the indirect method must be accurate regardless of altering dietary conditions. This experiment was designed to validate the accuracy of using indigestible neutral detergent fiber (iNDF) or acid-insoluble ash (AIA) as intrinsic markers to estimate fecal outputs and nutrient digestibility compared with TC and to determine the optimal number of spot sampling events to accurately determine fecal output and then nutrient excretion...
July 12, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29908813/the-influence-of-fat-and-hemicellulose-on-methane-production-and-energy-utilization-in-lactating-jersey-cattle
#5
O R Drehmel, T M Brown-Brandl, J V Judy, S C Fernando, P S Miller, K E Hales, P J Kononoff
Feeding fat to lactating dairy cows may reduce methane production. Relative to cellulose, fermentation of hemicellulose is believed to result in less methane; however, these factors have not been studied simultaneously. Eight multiparous, lactating Jersey cows averaging (±SD) 98 ± 30.8 d in milk and body weight of 439.3 ± 56.7 kg were used in a twice-replicated 4 × 4 Latin square to determine the effects of fat and hemicellulose on energy utilization and methane production using a headbox-type indirect calorimetry method...
June 13, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29908810/effects-of-overstocking-at-the-feedbunk-on-the-growth-performance-and-sorting-characteristics-of-a-forage-based-diet-offered-for-ad-libitum-intake-to-replacement-holstein-dairy-heifers
#6
W K Coblentz, M S Akins, N M Esser, R K Ogden, S L Gelsinger
Various forms of overcrowding are common in heifer-rearing operations. Our objectives for this study were to evaluate the effects of overstocking at the feedbunk (100, 133, 160, or 200% of capacity) on the growth performance, feedbunk sorting behaviors, and hygiene of 128 gravid Holstein heifers (475 ± 55.3 kg) consuming an alfalfa haylage and corn silage diet diluted with processed wheat straw at an inclusion rate of 25.2% (DM basis). In this study, heifers were overstocked only at the feedbunk, and not with respect to available freestalls or pen area...
June 13, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29877003/effects-of-different-forage-combinations-in-total-mixed-rations-on-in-vitro-gas-production-kinetics-ruminal-and-milk-fatty-acid-profiles-of-lactating-cows
#7
Sarvvl Bai, Zhi-Jun Cao, Bin-Bin Cao, Hong-Jian Yang, Sheng-Li Li, Jian-Xin Liu
This study aimed to determine the effects of different forage combinations on in vitro gas production (GP) kinetics, ruminal and milk fatty acid profiles. Forty-five lactating cows were randomly arranged into three groups and fed three total mixed rations (TMRs) with different forage combinations: TMR1, 23% alfalfa hay, 7% Chinese wild ryegrass hay and 15% whole corn silage; TMR2, 30% corn stover plus 15% whole corn silage; TMR3, 30% rice straw plus 15% whole corn silage. In vitro dry matter disappearance ranked: TMR1 > TMR2 > TMR3, and highest cumulative GP and asymptotic GP occurred in TMR1 while no difference occurred between TMR2 and TMR3...
June 6, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29845704/effects-of-inoculants-and-environmental-temperature-on-fermentation-quality-and-bacterial-diversity-of-alfalfa-silage
#8
Qing Zhang, Zhu Yu, Xianguo Wang, Jipeng Tian
To investigate the effects of inoculants and environmental temperature on fermentation quality and bacterial diversity of alfalfa silage, first-cut alfalfa was ensiled with or without two screened lactic acid bacteria (LAB) strains, Lactobacillus plantarum, LP, and Lactobacillus casei, LC. Each treatment was divided into three parts and stored at 20°C, 30°C, 40°C, respectively. After 60 days ensiling, fermentation characteristics were measured and bacterial diversity was investigated by 16S ribosomal RNA gene sequencing using Illumina MiSeq platform...
May 29, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29767155/responses-of-milk-production-of-dairy-cows-to-jugular-infusions-of-a-mixture-of-essential-amino-acids-with-or-without-exclusion-leucine-or-arginine
#9
Wen Tian, Tianyou Wu, Rui Zhao, Jinhao Xu, Yao He, Hongrong Wang
The purpose of this study was to determine effects of jugular infusion of either balanced or imbalanced amino acid mixture on milk production and composition in dairy cows. Eight mid-lactation Holstein cows were randomly assigned to 5-d continuous jugular infusions of saline (CTL), essential amino acid (EAA) mixture prepared on the profile of casein (CSN, 160 g/d), EAA mixture excluding leucine (Leu) (-Leu, 163 g/d) or EAA mixture excluding arginine (Arg) (-Arg, 158 g/d) in a duplicated 4 × 4 Latin square design with 4 infusion periods separated by a 7-d interval period...
September 2017: Animal nutrition
https://www.readbyqxmd.com/read/29719664/indigestible-neutral-detergent-fibers-relationship-between-forage-fragility-and-neutral-detergent-fibers-digestibility-in-total-mixed-ration-and-some-feedstuffs-in-dairy-cattle
#10
Mostafa Soufizadeh, Rasoul Pirmohammadi, Yunes Alijoo, Hamed Khalilvandi Behroozyar
Indigestible neutral detergent fibers (iNDF) accurately predict forage digestibility when measured in situ . The objective of this study was to determine the effects of rumen incubation times on the estimated concentrations of iNDF for four forages (alfalfa hay, corn silage, wheat straw and orchard grass), four concentrates (barley grain, soybean meal, beet pulp and wheat bran) and two total mixed ration samples in dairy cows. The iNDF contents of the samples were evaluated in 10 feeds using three ruminally cannulated Holstein cows in a completely randomized design...
2018: Veterinary Research Forum
https://www.readbyqxmd.com/read/29680651/productivity-of-lactating-dairy-cows-fed-diets-with-teff-hay-as-the-sole-forage
#11
B A Saylor, D H Min, B J Bradford
Groundwater depletion is one of the most pressing issues facing the dairy industry in arid regions. One strategy to improve the industry's drought resilience involves feeding drought-tolerant forage crops in place of traditional forage crops such as alfalfa and corn silage. The objective of this study was to assess the productivity of lactating dairy cows fed diets with teff hay (Eragrostis tef) as the sole forage. Teff is a warm-season annual grass native to Ethiopia that is well adapted to drought conditions...
July 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29671906/the-particulate-passage-rate-nutrient-composition-and-fermentation-characteristics-across-gastrointestinal-tracts-in-lactating-dairy-cows-fed-three-different-forage-source-diets
#12
B Wang, F F Gu, X B Huang, J X Liu
This study was conducted to investigate the particulate passage rate, nutrient characteristics and fermentation parameters across the gastrointestinal tract (GIT) in lactating dairy cows fed cereal straws in comparison with alfalfa hay. Eighteen multiparous Holstein cows were randomly assigned to one of three experimental diets consisting of 55% concentrate, 15% corn silage and 30% different forage sources as follows (% of dry matter [DM]): (i) 23% alfalfa hay and 7% Chinese wild rye hay (AH); (ii) 30% corn stover (CS); and (iii) 30% rice straw (RS)...
August 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29655564/feeding-reduced-fat-dried-distillers-grains-with-solubles-to-lactating-holstein-dairy-cows-does-not-alter-milk-composition-or-cause-late-blowing-in-cheese
#13
E D Testroet, D C Beitz, M R O'Neil, A L Mueller, H A Ramirez-Ramirez, S Clark
Feeding dried distillers grains with solubles (DDGS) to lactating dairy cows has been implicated as a cause of late blowing defects in the production of Swiss-style cheeses. Our objectives were (1) to test the effect of feeding reduced-fat DDGS (RF-DDGS; ∼6% fat) to lactating dairy cows on the composition of milk and on the suitability of the milk for production of baby Swiss cheese and (2) to evaluate the effect of diet on cow lactation performance. Lactating Holstein dairy cows were fed both dietary treatments in a 2 × 2 crossover design...
July 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29582341/effect-of-dietary-inclusion-of-date-seed-phoenix-dactylifera-l-on-intake-digestibility-milk-production-and-milk-fatty-acid-profile-of-holstein-dairy-cows
#14
A Rezaeenia, A A Naserian, R Valizadeh, A M Tahmasbi, A Mokhtarpour
The objective of this experiment was to investigate the influence of ground date seed (GDS) on intake, digestibility, and milk yield and milk fatty acid (FA) composition of lactating Holstein cows. The experimental design was a 4 × 4 replicated Latin square with eight lactating dairy cows with an average milk production of 35.5 ± 1.5 kg and 75 ± 5 days in milk (DIM). Dairy cows were fed one of the four treatments contained 0, 2, 4, and 6% of diet dry matter (DM) GDS in replacement of wheat bran...
March 26, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29573804/effects-of-homolactic-bacterial-inoculant-on-the-performance-of-lactating-dairy-cows
#15
J L P Daniel, O C M Queiroz, K G Arriola, R Daetz, F Basso, J J Romero, A T Adesogan
The objective of this experiment was to determine the effect of applying a homofermentative bacterial inoculant to corn silage on the performance of dairy cows. After harvesting, corn forage was treated with nothing (CON) or with an inoculant containing a mixture of Lactococcus lactis, Lactobacillus plantarum, and Enterococcus faecium at 1.5 × 105 cfu/g of fresh forage (MC; SiloSolve MC, Chr. Hansen A/S, Hørsholm, Denmark). After 186 d of storage in Ag-Bags (A Miller-St. Nazianz Inc., St. Nazianz, WI), silages were fed as part of a total mixed ration containing 55% concentrates, 10% alfalfa hay, and 35% CON or MC corn silage...
June 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29550126/determination-of-in-vitro-isoflavone-degradation-in-rumen-fluid
#16
Andrea Trnková, Kateřina Šancová, Martina Zapletalová, Jitka Kašparovská, Kateřina Dadáková, Ludmila Křížová, Jan Lochman, Sylvie Hadrová, Ivana Ihnatová, Tomáš Kašparovský
The aim of this study was to determine the degradation of dietary isoflavones in rumen fluid under 2 feeding regimens. The experiments were performed in vitro using a rumen fluid buffer system. The rumen fluid was taken from cows fed either a hay diet or a concentrate-rich diet (the diet consisted of 34.6% maize silage, 17.6% haylage, 12.8% alfalfa hay, and 35.0% supplemental mixture on a dry matter basis). As a source of isoflavones, 40% soybean extract (Biomedica, Prague, Czech Republic) at levels of 5, 25, 50, and 75 mg per 40 mL of rumen fluid was used...
June 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29525317/short-communication-lysine-retained-among-2-lipid-coated-lysine-products-after-exposure-to-alfalfa-or-corn-silage-with-different-amounts-of-acidity
#17
J N Reiners, J E Held, C L Wright, D W Brake
We conducted 2 experiments to determine lysine loss from 2 lipid-coated lysine products after mixing with silage. In our first experiment, we mixed 2 lipid-coated lysine products, crystalline lysine or crystalline lysine and amounts of lipid identical to amounts included in lipid-coated lysine products, with alfalfa or corn silage that had 2 different amounts of acidity. Lysine appeared to disassociate from lipid-coated lysine products in a nonlinear manner after mixing with either alfalfa or corn silage at different amounts of acidity...
June 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29525315/inclusion-of-brown-midrib-dwarf-pearl-millet-silage-in-the-diet-of-lactating-dairy-cows
#18
M T Harper, A Melgar, J Oh, K Nedelkov, G Sanchez, G W Roth, A N Hristov
Brown midrib brachytic dwarf pearl millet (Pennisetum glaucum) forage harvested at the flag leaf visible stage and subsequently ensiled was investigated as a partial replacement of corn silage in the diet of high-producing dairy cows. Seventeen lactating Holstein cows were fed 2 diets in a crossover design experiment with 2 periods of 28 d each. Both diets had forage:concentrate ratios of 60:40. The control diet (CSD) was based on corn silage and alfalfa haylage, and in the treatment diet, 20% of the corn silage dry matter (corresponding to 10% of the dietary dry matter) was replaced with pearl millet silage (PMD)...
June 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29514436/effect-of-cumin-essential-oil-usage-on-fermentation-quality-aerobic-stability-and-in-vitro-digetibility-of-alfalfa-silage
#19
Aslı Turan, Sibel Soycan Önenç
Objective: This study was carried out to determine the effects of cumin essential oil on the silage fermentation, aerobic stability and in vitro digestibility of alfalfa silages. METHODS: Alfalfa was harvested at early bloom (5th cutting) stage in October and wilted for about 3 hours. The research was carried out at three groups which were the control group where no additive control was done (CON), cumin essential oil (CMN3) with 300 mg/kg and CMN5 with 500 mg/kg cumin essential oil addition...
August 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/29454691/the-effect-of-alfalfa-medicago-sativa-silage-chop-length-and-inclusion-rate-within-a-total-mixed-ration-on-the-ability-of-lactating-dairy-cows-to-cope-with-a-short-term-feed-withholding-and-refeeding-challenge
#20
A L Thomson, D J Humphries, L A Crompton, C K Reynolds
The objectives of the study were (1) to test whether 6 h of feed deprivation followed by refeeding induces an acidosis challenge in dairy cattle and (2) to quantify the acidosis challenge mitigation potential of increased alfalfa silage concentration in the diet. Alfalfa silage constituted either 25 or 75% of forage dry matter (DM) replacing corn silage [low (LA) or high alfalfa (HA)] and was chopped to either 14 or 19 mm theoretical length [short (S) or long (L)]. Dietary treatments LAS, LAL, HAS, or HAL were offered to 4 rumen-cannulated Holstein dairy cattle (161 d in milk; 5th or 6th parity) in a 4 × 4 Latin square design study with 21-d periods...
May 2018: Journal of Dairy Science
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