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Grass fed beef

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https://www.readbyqxmd.com/read/29753991/effects-of-contrasting-concentrate-feeding-strategies-on-meat-quality-of-growing-and-finishing-dairy-bulls-offered-grass-silage-and-barley-based-diets
#1
Katariina Manni, Marketta Rinne, Arto Huuskonen, Pekka Huhtanen
The objective was to examine the effects of concentrate level (barley grain 39 and 74 g dry matter/kg0.60 live weight) and allocation regime (steady, increased, decreased) on meat quality of growing dairy bulls fed grass silage ad libitum. Chemical, instrumental and sensory analyses were used for measuring quality of longissimus lumborum (LL). Greater concentrate level increased fat content (P = 0.035) and tenderness of sensory analysis (P = 0.009) of LL but did not affect pH, colour, drip loss, sarcomere length, shear force, juiciness or flavour...
April 30, 2018: Meat Science
https://www.readbyqxmd.com/read/29688495/supplementing-ca-salts-of-soybean-oil-after-artificial-insemination-increases-pregnancy-success-in-bos-taurus-beef-cows
#2
A P Brandão, R F Cooke, K M Schubach, R S Marques, D W Bohnert, R S Carvalho, N W Dias, C L Timlin, S Clark-Deener, J F Currin, D B Jump, K G Pohler, R L A Cerri, V R G Mercadante
Two experiments investigated the effects of supplementing Ca salts of soybean oil (CSSO) during early gestation on reproductive function and pregnancy rates to artificial insemination (AI) in Bos taurus beef cows. In Exp. 1, 771 suckled, lactating, multiparous Angus cows were divided into 22 groups of approximately 35 cows/group, and timed-inseminated on d 0. After AI, groups were assigned randomly to receive (as-fed basis) 100 g of ground corn + 100 g of soybean meal per cow/d, in addition to: 1) 100 g/cow daily of CSSO (n = 11), or 2) 87 g of prilled saturated fat + 13 g of limestone per cow/d (CON; n = 11)...
April 24, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29572585/comparison-of-silage-and-hay-of-dwarf-napier-grass-pennisetum-purpureum-fed-to-thai-native-beef-bulls
#3
Chaowarit Mapato, Metha Wanapat
Both quantity and quality of forages are important in dry season feeding. Eight Thai native beef bulls were arranged in a Completely randomized design to evaluate dwarf Napier namely Sweet grass (Pennisetum purpureum cv. Mahasarakham) preserved as silage or hay on feed intake, digestibility, and rumen fermentation. The animals were fed with forage ad libitum supplemented with concentrate mixture at 1.0% of BW for 21 days; data were collected during the last 7 days. The results showed that there were differences (P < 0...
March 23, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29549844/effects-of-feeding-legume-grass-pasture-and-different-concentrate-levels-on-fatty-acid-profile-volatile-compounds-and-off-flavor-of-the-m-longissimus-thoracis
#4
A P B Fruet, F Trombetta, F S Stefanello, C S Speroni, J Z Donadel, A N M De Souza, A Rosado Júnior, C J Tonetto, R Wagner, A De Mello, J L Nörnberg
Pasture-finished beef is becoming more popular among consumers due to concerns related to fatty acid content and sustainable practices. The effects of finishing crossbred steers on legume-grass pasture comprised of oats, ryegrass, and clover (PAST), legume-grass pasture plus whole corn grain (WCG) supplementation (SUPP), and only with WCG (GRAIN) on fatty acids profile, volatile compounds, sensory, and texture attributes were studied. Pasture diets (PAST and SUPP) led to lower n-6/n-3 ratio (P < 0.001), and highest deposition of C18:2 cis-9 trans-11 (P < 0...
June 2018: Meat Science
https://www.readbyqxmd.com/read/29531191/effects-of-high-pressure-processing-on-taste-related-atp-breakdown-compounds-and-aroma-volatiles-in-grass-fed-beef-during-vacuum-aging
#5
Dicky Tri Utama, Seung Gyu Lee, Ki Ho Baek, Aera Jang, Jae In Pak, Sung Ki Lee
Objective: This study aimed to observe whether high-pressure processing (HPP) affected aroma development and the degradation rate of umami taste-related ATP breakdown products, specifically inosinic acid in grass-fed beef during vacuum aging. Methods: Strip loin (longissimus lumborum) cuts obtained from six grass-fed Friesian Holstein steers (32 months old) on day 4 post slaughter were vacuum-packed and subjected to pressurization at 300 and 500 MPa for 180 s at 15 ± 2°C...
March 13, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/29455428/potential-of-feeding-beef-cattle-with-whole-corn-crop-silage-and-rice-straw-in-malaysia
#6
Muhamad Hazim Nazli, Ridzwan Abdul Halim, Amin Mahir Abdullah, Ghazali Hussin, Anjas Asmara Samsudin
The potential of using whole corn crop silage and rice straw as an alternative feed for the beef cattle based on the intake and growth performance were evaluated. Using randomised completely block design, nine adult Mafriwal cattle were blocked intro three groups and treated with three different forage diets supplemented with 20% pelleted palm kernel cake on dry matter basis. The treatments were 100% rice straw (RS), 100% corn silage (CS) and an equal mixture of rice straw and corn silage (MIX) fed ad libitum...
February 17, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29277170/supplementing-a-yeast-derived-product-to-enhance-productive-and-health-responses-of-beef-steers
#7
L G T Silva, R F Cooke, K M Schubach, A P Brandão, R S Marques, T F Schumaher, P Moriel, D W Bohnert
This experiment evaluated the impacts of supplementing a yeast-derived product (Celmanax; Church & Dwight Co., Inc., Princeton, NJ, USA) on productive and health responses of beef steers, and was divided into a preconditioning (days 4 to 30) and feedlot receiving phase (days 31 to 69). In all, 84 Angus × Hereford steers were weaned on day 0 (BW=245±2 kg; age=186±2 days), and maintained in a single group from days 0 to 3. On day 4, steers were allocated according to weaning BW and age to a 21-pen drylot (4 steers/pen)...
December 26, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29166174/low-prevalence-of-salmonella-and-shiga-toxin-producing-escherichia-coli-in-lymph-nodes-of-australian-beef-cattle
#8
Gavin Bailey, Long Huynh, Lachlan Govenlock, David Jordan, Ian Jenson
Salmonella contamination of ground beef has been viewed as originating from the surface of carcasses. Recent studies have identified lymph nodes as a potential source of Salmonella contamination because these tissues play an active role in containment of pathogens in the live animal and because some lymph nodes are unavoidably present in manufacturing beef trimmings or primal cuts that may be incorporated into ground beef. A survey was conducted of the microbiological status of lymph nodes from Australian cattle at the time of slaughter to determine the prevalence of microbiological contamination...
December 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28724475/blood-profile-and-meat-quality-of-holstein-friesian-steers-finished-on-total-mixed-ration-or-flaxseed-oil-supplemented-pellet-mixed-with-reed-canary-grass-haylage
#9
D T Utama, S G Lee, K H Baek, W S Chung, I A Chung, D I Kim, G Y Kim, S K Lee
Holstein-Friesian steer beef production is renowned globally as a secondary product of the milk industry. Grass feeding is a common practice in raising Holstein steers because of its low cost. Furthermore, grass feeding is an alternative way to produce beef with a balanced n-6 to n-3 fatty acids (FAs) ratio. However, the performance and meat quality of Holstein-Friesian cattle is more likely to depend on a high-quality diet. The aim of this study was to observe whether feeding two mixed diets; a corn-based total mixed ration (TMR) with winter ryegrass (Lolium perenne) or flaxseed oil-supplemented pellets with reed canary grass haylage (n-3 mix) provided benefits on carcass weight, meat quality and FA composition compared with cattle fed with reed canary grass (Phalaris arundinacea) haylage alone...
July 20, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28644988/effect-of-marbling-on-volatile-generation-oral-breakdown-and-in-mouth-flavor-release-of-grilled-beef
#10
Damian Frank, Kornelia Kaczmarska, Janet Paterson, Udayasika Piyasiri, Robyn Warner
While the positive effect of intramuscular fat (IMF) on beef tenderness is well-established, its role in flavor generation and flavor release is less defined. To increase understanding, real-time volatile generation was monitored during grilling of beefsteaks (grass and grain-fed Angus and grass-fed Wagyu) with different amounts of IMF by proton transfer reaction mass spectrometry. Volatile concentration increased significantly (p<0.001) when the IMF was >~10%, but did not differ (p>0.05) at lower IMF levels (5...
June 15, 2017: Meat Science
https://www.readbyqxmd.com/read/28554651/fatty-acid-volatile-and-sensory-characteristics-of-beef-as-affected-by-grass-silage-or-pasture-in-the-bovine-diet
#11
Gebrehawerya B Mezgebo, Frank J Monahan, Mark McGee, Edward G O'Riordan, Ian R Richardson, Nigel P Brunton, Aidan P Moloney
Fatty acids, volatile compounds and sensory attributes of beef from bulls fed concentrates to slaughter (C), grass silage for 120days (GS) followed by C (GSC), or GS followed by 100days at pasture and then C (GSPC), and slaughtered at 3 target carcass weights, were determined. Total intramuscular fat (IMF) was lower for GSPC than for GSC and C. C18:3n-3 concentration and polyunsaturated fatty acid (PUFA) to saturated fatty acid (SFA) ratio were higher and C18:2n-6 and monounsaturated fatty acid concentrations and n-6:n-3 PUFA ratio lower for GSPC than C...
November 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28515638/fatty-acid-profiles-meat-quality-and-sensory-palatability-of-grain-fed-and-grass-fed-beef-from-hanwoo-american-and-australian-crossbred-cattle
#12
Young-Hwa Hwang, Seon-Tea Joo
Fatty acid profiles in relation to meat quality traits and sensory palatability of grain-fed and grass-fed beef from Hanwoo, American, and Australian crossbred cattle were examined in this study. There were significant (p<0.001) differences in fat content and fatty acid compositions between grain-fed and grass-fed beef. Grain-fed Hanwoo had significantly (p<0.001) lower saturated fatty acid (SFA) proportion but higher monounsaturated fatty acid (MUFA) proportion compared to grass-fed cattle. The proportion of oleic acid in grain-fed Hanwoo was significantly (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28397330/is-meat-quality-of-forage-fed-steers-comparable-to-the-meat-quality-of-conventional-beef-from-concentrate-fed-bulls
#13
COMPARATIVE STUDY
Mireia Blanco, Isabel Casasús, Guillermo Ripoll, Pere Albertí, Begoña Panea, Margalida Joy
BACKGROUND: Replacing concentrates with forages in the diet of finishing cattle to satisfy societal demands and for economic reasons is a target for beef farmers, but this change may affect meat acceptance. In the Mediterranean area, young bulls are usually finished on concentrates (Conventional beef). Alternatively, steers can be finished on grass with supplements (G-supp); however, if carcasses are too lean, meat quality may be negatively affected. To increase fat deposition, grazing steers were finished on a total mixed ration composed of alfalfa hay and corn (TMR)...
November 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28386840/effects-of-supplements-containing-different-additives-on-nutritional-and-productive-performance-of-beef-cattle-grazing-tropical-grass
#14
V V Carvalho, M F Paulino, E Detmann, M L Chizzotti, L S Martins, A G Silva, S A Lopes, F H Moura
A grazing trial was carried out to evaluate the inclusion of three feed additives in supplements (crude protein, CP 230 g/kg dry matter, DM) on the performance, voluntary intake, and digestibility of beef heifers grazing Brachiaria decumbens (CP 81 and neutral detergent fiber, NDF 615 g/kg DM). Thirty-five Nellore heifers (21 months of age and 383 ± 6.29 kg of body weight, BW) were used in a completely randomized design. The treatments were as follows: no supplement (control); supplement fed at 1 kg/animal/day without additives (S); supplement with monensin (S + M); supplement with yeast culture (S + YC); and supplement with enzyme complex (S + EC)...
June 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28335096/estimation-of-methane-emissions-from-local-and-crossbreed-beef-cattle-in-daklak-province-of-vietnam
#15
Carlos Alberto Ramírez-Restrepo, Dung Van Tien, Ngoan Le Duc, Mario Herrero, Phung Le Dinh, Dung Dinh Van, Sen Le Thi Hoa, Cuong Vu Chi, Cesar Solano-Patiño, Amy M Lerner, Timothy D Searchinger
OBJECTIVE: This study was aimed at evaluating effects of cattle breed resources and alternative mixed-feeding practices on meat productivity and emission intensities from household farming systems (HFS) in Daklak Province, Vietnam. METHODS: Records from Local Yellow×Red Sindhi (Bos indicus; Lai Sind) and 1/2 Limousin, 1/2 Drought Master, and 1/2 Red Angus cattle during the growth (0 to 21 months) and fattening (22 to 25 months) periods were used to better understand variations on meat productivity and enteric methane emissions...
July 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28177359/effects-of-alternate-day-supplementation-at-two-levels-of-energy-on-intake-rumen-fermentation-and-digestibility-of-beef-heifers-fed-cool-season-perennial-grass-hay
#16
F Añez-Osuna, G B Penner, P G Jefferson, H A Lardner, J J McKinnon
A study was conducted to evaluate the effects of supplementing energy daily vs. on alternate days at levels that were 1.5 and 2 times the daily amount on DMI, rumen fermentation parameters, and apparent total tract digestibility of beef heifers fed grass hay. Four cannulated Hereford heifers (339 ± 11 kg) were randomly assigned over 4 periods to a 4 × 4 Latin square design. Heifers were fed a cool-season perennial grass (CSPG) hay (10% CP and 42% ADF) and supplemented with a pelleted feed formulated to provide 3...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28061817/the-rumen-microbial-metaproteome-as-revealed-by-sds-page
#17
Timothy J Snelling, R John Wallace
BACKGROUND: Ruminal digestion is carried out by large numbers of bacteria, archaea, protozoa and fungi. Understanding the microbiota is important because ruminal fermentation dictates the efficiency of feed utilisation by the animal and is also responsible for major emissions of the greenhouse gas, methane. Recent metagenomic and metatranscriptomic studies have helped to elucidate many features of the composition and activity of the microbiota. The metaproteome provides complementary information to these other -omics technologies...
January 7, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/27898863/rapid-communication-expression-of-an-endogenous-retroviral-element-during-early-gestation-in-beef-heifers
#18
K J McLean, M S Crouse, M R Crosswhite, D N Black, C R Dahlen, P P Borowicz, L P Reynolds, A K Ward, B W Neville, J S Caton
Endogenous retroviral gene elements have been implicated in development and formation of the feto-maternal interface. A variant of the syncytin endogenous retroviral envelope gene family, , was recently found in ruminants. We hypothesized that mRNA would be differentially expressed in utero-placental tissues and would fluctuate during key time points of early gestation in beef heifers. Commercial Angus crossbred heifers ( = 46; ∼15 mo of age; BW = 362.3 ± 34.7kg) housed in 6-animal pens were fed daily with native grass hay and supplemented with cracked corn to gain 0...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27829479/metabolic-and-reproductive-characteristics-of-replacement-beef-heifers-subjected-to-an-early-weaning-regimen-involving-high-concentrate-feeding
#19
A L Zezeski, V L McCracken, R K Poole, A Al Naib, J K Smith, M A McCann, M L Rhoads
In an effort to better understand the consequences of early weaning (EW) for replacement beef heifers, a two-phase experiment was conducted investigating the impact on metabolic function and documenting reproductive characteristics. In phase 1, Angus×Simmental heifers (n=35) were stratified by BW and sire, and randomly assigned to either a normal weaning (NW, n=18) or EW (n=17) treatment. EW heifers were weaned at 107±3 days of age and provided access to a concentrate-based ration ad libitum with limit-fed mixed grass hay...
May 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27726060/short-term-dietary-concentrate-supplementation-during-estrus-synchronization-treatment-in-beef-cows-increased-igf-i-serum-concentration-but-did-not-affect-the-reproductive-response
#20
A M Rosales-Torres, Z B López-Cedillo, C G Hernández-Coronado, J V Rosete-Fernández, G D Mendoza, A Guzmán
The objective of this study was to evaluate if short-term dietary concentrate supplementation increased IGF-I serum concentration and resulted in a reproductive response during estrus synchronization treatment in non-lactating beef cows. Thirty non-lactating beef cows (Bos indicus × Bos taurus) were allocated to the same pastureland and fed native tropical grasses as a basal diet. Cows were synchronized using a 7-day CO-Synch plus controlled internal drug release (CIDR) protocol and received fixed time artificial insemination (FTAI)...
January 2017: Tropical Animal Health and Production
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