keyword
MENU ▼
Read by QxMD icon Read
search

Cow milk protein

keyword
https://www.readbyqxmd.com/read/28822552/consequences-of-dietary-energy-source-and-energy-level-on-energy-balance-lactogenic-hormones-and-lactation-curve-characteristics-of-cows-after-a-short-or-omitted-dry-period
#1
R J van Hoeij, J Dijkstra, R M Bruckmaier, J J Gross, T J G M Lam, G J Remmelink, B Kemp, A T M van Knegsel
Omitting the dry period (DP) generally reduces milk production in the subsequent lactation. The aim of this study was to evaluate the effect of dietary energy source-glucogenic (G) or lipogenic (L)-and energy level-standard (std) or low-on milk production; energy balance (EB); lactogenic hormones insulin, insulin-like growth factor 1 (IGF-1), and growth hormone (GH); and lactation curve characteristics between wk 1 and 44 postpartum in cows after a 0-d or 30-d DP. Cows (n = 110) were assigned randomly to 3 transition treatments: a 30-d DP with a standard energy level required for expected milk yield [30-d DP(std)], a 0-d DP with the same energy level as cows with a 30-d DP [0-d DP(std)], and a 0-d DP with a low energy level [0-d DP(low)]...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28822549/effect-of-substituting-soybean-meal-and-canola-cake-with-grain-based-dried-distillers-grains-with-solubles-as-a-protein-source-on-feed-intake-milk-production-and-milk-quality-in-dairy-cows
#2
C Gaillard, M T Sørensen, M Vestergaard, M R Weisbjerg, A Basar, M K Larsen, H Martinussen, U Kidmose, J Sehested
The growth of the bioethanol industry is leading to an increase in the production of coproducts such as dried distillers grains with solubles (DDGS). Both corn-based DDGS and grain-based DDGS (gDDGS; defined as originating from grain sources such as barley, wheat, triticale, or a mix, excluding corn) appear to be relevant sources of feed and protein for dairy cows. To date, most of the studies investigating DDGS have been performed with corn-based DDGS. The objectives of this study were to determine the effects of the proportion of gDDGS in the diet on feed intake, milk production, and milk quality...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28822545/effects-of-the-dose-and-viability-of-saccharomyces-cerevisiae-2-ruminal-fermentation-performance-of-lactating-dairy-cows-and-correlations-between-ruminal-bacteria-abundance-and-performance-measures
#3
Y Jiang, I M Ogunade, K G Arriola, M Qi, D Vyas, C R Staples, A T Adesogan
This study examined effects of the dose and viability of supplemented Saccharomyces cerevisiae yeast strain YE1496 on ruminal fermentation and performance of lactating dairy cows. A second objective was to examine correlations between ruminal bacteria abundance and performance measures. Four ruminally cannulated lactating cows (284 ± 18 days in milk) were assigned randomly to 1 of 4 treatment sequences in a 4 × 4 Latin square experimental design using four 21-d experimental periods. Cows were fed a nonacidotic total mixed ration comprising 22...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28810831/application-of-a-bayesian-non-linear-model-hybrid-scheme-to-sequence-data-for-genomic-prediction-and-qtl-mapping
#4
Tingting Wang, Yi-Ping Phoebe Chen, Iona M MacLeod, Jennie E Pryce, Michael E Goddard, Ben J Hayes
BACKGROUND: Using whole genome sequence data might improve genomic prediction accuracy, when compared with high-density SNP arrays, and could lead to identification of casual mutations affecting complex traits. For some traits, the most accurate genomic predictions are achieved with non-linear Bayesian methods. However, as the number of variants and the size of the reference population increase, the computational time required to implement these Bayesian methods (typically with Monte Carlo Markov Chain sampling) becomes unfeasibly long...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28805897/effects-of-grass-silage-quality-and-level-of-feed-intake-on-enteric-methane-production-in-lactating-dairy-cows
#5
D Warner, A Bannink, B Hatew, H van Laar, J Dijkstra
The objective of this study was to determine the effect of level of feed intake and quality of ryegrass silage as well as their interaction on enteric methane (CH) emission from dairy cows. In a randomized block design, 56 lactating dairy cows received a diet of grass silage, corn silage, and a compound feed meal (70:10:20 on DM basis). Treatments consisted of 4 grass silage qualities prepared from grass harvested from leafy through late heading stage, and offered to dairy cows at 96 ± 2.4 (mean ± SEM) days in milk (namely, high intake) and 217 ± 2...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28804941/proteomic-analysis-to-unravel-the-effect-of-heat-stress-on-gene-expression-and-milk-synthesis-in-bovine-mammary-epithelial-cells
#6
Lian Li, Yiru Wang, Chengmin Li, Genlin Wang
Heat stress can play a negative effect on milk yield and composition of dairy cattle, leading to immeasurable economic loss. The basic components of the mammary gland are the alveoli; these alveolar mammary epithelial cells reflect the milk producing ability of dairy cows. In this study, we exposed bovine mammary epithelial cells to heat stress and compared them to a control group using isobaric tags for relative and absolute quantitation combined with liquid chromatography coupled with tandem mass spectrometry...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28803585/performance-and-financial-consequences-of-stillbirth-in-holstein-dairy-cattle
#7
A Mahnani, A Sadeghi-Sefidmazgi, H Keshavarzi
Stillbirth is an economically important trait on dairy farms. Knowledge of the consequences of, and the economic losses associated with stillbirth can help the producer when making management decisions. The objectives of this study were to determine the effects of stillbirth on productive and reproductive performance as well as financial losses due to stillbirth incidence in Iranian Holstein dairy farms. Economic and performance data were collected from nine Holstein dairy farms in Isfahan and Khorasan provinces of Iran from March 2008 to December 2013...
August 14, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28803021/effect-of-dietary-supplementation-with-heat-treated-canola-meal-on-ruminal-nutrient-metabolism-in-lactating-dairy-cows
#8
S J Krizsan, H Gidlund, F Fatehi, P Huhtanen
An experiment was conducted to quantify the effects of incremental levels of heat-moisture-treated canola meal (TCM) fed to dairy cows on the relationship between ruminal nutrient digestion and milk production. Experimental diets were fed to 4 multiparous rumen-cannulated Nordic Red cows, averaging (mean ± standard deviation) 681 ± 54.8 kg of body weight, 111 ± 16 d in milk, and 29.1 ± 9.1 kg of milk/d at the start of the study, in a Latin square design with four 21-d periods. The 4 experimental dietary treatments consisted of a basal diet of grass silage and crimped barley, and 3 diets in which the crimped barley was replaced with TCM, giving 3 incremental levels of protein supplementation...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28793938/effects-of-dry-period-length-on-milk-production-and-energy-balance-in-two-cow-breeds
#9
E Andrée O'Hara, A Omazic, I Olsson, R Båge, U Emanuelson, K Holtenius
Shortening the dry period (DP) has been proposed as a strategy to improve energy balance (EB) in cows in early lactation. This study evaluated the effects of shortening the DP on milk yield (MY), EB and residual feed intake (RFI) in two breeds; Swedish Red (SR) and Swedish Holstein (SH). Cows were blocked by breed and parity and then randomly assigned to one of two treatments; short DP of 4 weeks (4W, n=43) or conventional DP of 8 weeks (8W, n=34). Cows were kept and fed under the same conditions, except for the 4 weeks when the 4W group were still lactating prepartum and thus kept with the lactating cows...
August 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28783006/development-of-a-confirmatory-method-for-detecting-recombinant-bovine-somatotropin-in-plasma-by-immunomagnetic-precipitation-followed-by-ultra-high-performance-liquid-chromatography-coupled-to-tandem-mass-spectrometry
#10
Christelle Robert, Anne-Catherine Huet, Célia Suárez-Pantaleón, Amaury Brasseur, Philippe Delahaut, Nathalie Gillard
Recombinant bovine somatotropin (rbST), a synthetic growth hormone, is used to stimulate growth and enhance milk production in dairy cows. Both its use and the sale of dairy products from treated animals are prohibited in the European Union, Japan, Australia, New Zealand, and Canada, but authorised in several countries (e.g. the USA, Brazil). Screening methods involve detecting anti-rbST antibodies (biomarkers) in treated cows. Confirmatory methods are required to prove rbST abuse. The major challenges in determining rbST are its potentially low levels, its high similarity to native bST, and matrix interferences...
August 7, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28780482/profiling-inflammatory-biomarkers-in-cervico-vaginal-mucus-cvm-postpartum-potential-early-indicators-of-bovine-clinical-endometritis
#11
Mounir Adnane, Aspinas Chapwanya, Rachid Kaidi, Kieran G Meade, Cliona O'Farrelly
Endometritis significantly impacts fertility and milk yield, thus reducing profitability of the dairy production. In cows that develop endometritis, normal postpartum endometrial inflammation is dysregulated. Here, we propose that endometrial inflammation is reflected in cervico-vaginal mucus (CVM) which could therefore be used as a prognostic tool. CVM was collected from 20 dairy cows (10 with clinical endometritis and 10 healthy) 7 and 21 days postpartum (DPP). Polymorphonuclear (PMN), mononuclear leukocyte and epithelial cells were counted, total protein levels were estimated and levels of IL-1β, IL-6, IL-8, serum amyloid A (SAA), haptoglobin (Hp) and C5b were analyzed by ELISA in CVM...
July 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/28780106/economic-effect-of-reducing-nitrogen-and-phosphorus-mass-balance-on-wisconsin-and-qu%C3%A3-bec-dairy-farms
#12
D Pellerin, E Charbonneau, L Fadul-Pacheco, O Soucy, M A Wattiaux
Our objective was to explore the trade-offs between economic performance (farm net income, FNI) and environmental outcomes (whole-farm P and N balances) of dairy farms in Wisconsin (WI; United States) and Québec (QC; Canada). An Excel-based linear program model (N-CyCLES; nutrient cycling: crops, livestock, environment, and soil) was developed to optimize feeding, cropping, and manure management as a single unit of management. In addition to FNI, P and N balances model outputs included (1) the mix of up to 9 home-grown and 17 purchased feeds for up to 5 animal groups, (2) the mix of up to 5 crop rotations in up to 5 land units and c) the mix of up to 7 fertilizers (solid and liquid manure and 5 commercial fertilizers) to allocate in each land unit...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28780102/the-effects-of-high-sugar-ryegrass-red-clover-silage-diets-on-intake-production-digestibility-and-n-utilization-in-dairy-cows-as-measured-in-vivo-and-predicted-by-the-norfor-model
#13
J Bertilsson, M Åkerlind, T Eriksson
Grass silage-based diets often result in poor nitrogen utilization when fed to dairy cows. Perennial ryegrass cultivars with high concentrations of water-soluble carbohydrates (WSC) have proven potential for correcting this imbalance when fed fresh, and have also been shown to increase feed intake, milk production, and N utilization. The possibility of achieving corresponding effects with silage-based diets was investigated in change-over experiments in an incomplete block design with 16 (yr 1) or 12 (yr 2) Swedish Red dairy cows in mid lactation...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28780091/production-performance-and-milk-fatty-acid-profile-in-grazing-dairy-cows-offered-ground-corn-or-liquid-molasses-as-the-sole-supplemental-nonstructural-carbohydrate-source
#14
A F Brito, K J Soder, P Y Chouinard, S F Reis, S Ross, M D Rubano, M D Casler
The objective of this study was to compare the effects of ground corn or liquid molasses fed as the sole supplemental nonstructural carbohydrate (NSC) source on production performance, milk fatty acid (FA) profile, grazing behavior, and N metabolism in grazing dairy cows. A strip-grazing management system was used, with cows offered a new strip of fresh herbage after each milking, resulting in approximately 16 h of access to pasture daily. Animals were fed a diet formulated to yield an 86:14 forage-to-concentrate ratio consisting [dry matter (DM) basis] of 74% mixed grass-legume herbage, 12% mixed-mostly legume baleage, 12% NSC source, and 2% mineral-vitamin premix...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28760665/metritis-vaccination-in-holstein-dairy-heifers-using-a-herd-specific-multivalent-vaccine-effects-on-uterine-health-and-fertility-in-first-lactation
#15
M Freick, A Kunze, O Passarge, J Weber, S Geidel
In cattle, acute puerperal metritis (APM) compromises animal welfare and has an economic impact to the farmer because of the detrimental effects on reproductive performance, milk production, and survivability. The aim of this randomized clinical study was to investigate the effects of a prepartum immunization using a herd-specific multivalent vaccine on incidence of APM, prevalence of clinical endometritis (CE), and selected measures of reproductive performance in primiparous Holstein cows. Pregnant nulliparous cows (230±4days of gestation) assigned to the vaccinated group (VG; n=142) received subcutaneously 5...
July 22, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28759641/novel-sensitive-monoclonal-antibody-based-competitive-enzyme-linked-immunosorbent-assay-for-the-detection-of-raw-and-processed-bovine-beta-casein
#16
Daniela S Castillo, Alejandro Cassola
Cow milk protein allergy (CMPA) is the most common childhood food allergy, which can sometimes persist or can newly develop in adulthood with severe symptoms. CMPA's treatment is complete dietary avoidance of milk proteins. To achieve this task, patients have to be aware of milk proteins found as "hidden allergens" in food commodities. In regard to milk proteins, it has been reported that allergenicity of caseins remains unaffected upon heat treatment. For these reasons, we aimed to obtain monoclonal antibodies (mAbs) against native and denatured β-casein, one of the most abundant and antigenic caseins, in order to develop an indirect competitive ELISA (icELISA) to detect and quantify traces of this milk allergen in raw and processed foodstuffs...
2017: PloS One
https://www.readbyqxmd.com/read/28755948/effect-of-tea-saponins-on-milk-performance-milk-fatty-acids-and-immune-function-in-dairy-cow
#17
B Wang, Y Tu, S P Zhao, Y H Hao, J X Liu, F H Liu, B H Xiong, L S Jiang
This study investigated the effects of tea saponins (TSP) on milk performance, milk fatty acids, and blood immune function in dairy cows. A total of 20 early-lactation Holstein cows (days in milk = 66.4 ± 16.8 d; parity = 1.75 ± 0.91; and milk yield = 36.3 ± 7.32 kg/d; mean ± standard deviation) were randomly divided into 4 homogeneous treatment groups, with TSP added at 0, 20, 30, and 40 g/d per head, respectively. All cows had 2 wk of adaptation and 6 wk of treatments. Feed, milk, and blood were sampled and analyzed weekly...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28755937/lowering-rumen-degradable-protein-maintained-energy-corrected-milk-yield-and-improved-nitrogen-use-efficiency-in-multiparous-lactating-dairy-cows-exposed-to-heat-stress
#18
J D Kaufman, K R Kassube, A G Ríus
The objective of this study was to examine the effect of reducing rumen-degradable protein (RDP) and rumen-undegradable protein (RUP) proportions on feed intake, milk production, and N-use efficiency in primiparous and multiparous cows exposed to warm climates. Eighteen primiparous and 30 multiparous mid-lactation Holstein cows were used in a completely randomized design with a 2 × 2 factorial arrangement of treatments. Cows were randomly assigned to 1 of 4 dietary treatments formulated to contain 2 proportions of RDP (10 and 8%) and 2 proportions RUP (8 and 6%) of dry matter (DM) indicated as follows: (1) 10% RDP, 8% RUP; (2) 8% RDP, 8% RUP; (3) 10% RDP, 6% RUP; and (4) 8% RDP, 6% RUP...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28755932/relationships-between-postruminal-casein-infusion-and-milk-production-and-concentrations-of-plasma-amino-acids-and-blood-urea-in-dairy-cows-a-multilevel-mixed-effects-meta-analysis
#19
R Martineau, D R Ouellet, E Kebreab, R R White, H Lapierre
The relationships between postruminal casein infusion and production variables and concentrations of plasma AA and blood urea were evaluated using multilevel mixed-effects models derived from literature data collected in dairy cows. The data set contained 147 treatment means [i.e., 66 controls (CTL) and 81 casein-infused (CAS) means]. Each CAS mean was paired with its corresponding CTL mean to create 81 mean differences (CAS minus CTL), which were analyzed as absolute and percentage-based units (i.e., percentage increase or decrease in CAS relative to CTL)...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28755931/blood-plasma-traits-associated-with-genetic-merit-for-feed-utilization-in-holstein-cows
#20
C D Dechow, C R Baumrucker, R M Bruckmaier, J W Blum
The objective of this study was to evaluate the potential of selection for feed utilization on associated blood plasma metabolite and hormone traits. Dry matter intake (DMI) was recorded in 970 Holsteins from 11 commercial farms in Pennsylvania and used to derive dry matter efficiency (DME; fat-corrected milk yield/DMI), crude protein efficiency (CPE; protein yield/crude protein intake), and residual feed intake (RFI, defined as actual feed intake minus expected feed intake for maintenance and milk production, based on calculation of DMI adjusted for yield, body weight, and body condition score)...
July 26, 2017: Journal of Dairy Science
keyword
keyword
90145
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"