Abstract Dualex and SPAD are devices developed for the purpose of testing crop nitrogen (N) status. These instruments were used in a wheat experiment order to compare their respective performance assessing leaf concentration, response N topdressing application, soil nitrate (NO3)-N levels predicting grain yield. The included different rates 2005 2006 Montérégie region Quebec, Canada. readings correlated negatively with readings, NO3-N content alone ratio measurements (Chl/Phen) linearly...

Abstract Growers in the Northern Great Plains (NGP) are increasingly adopting winter wheat (WW; Triticum aestivum L.) into their crop rotations years of ideal fall planting conditions due to its high yield potential. Our study evaluated WW responses rotational crops, soybean ( Glycine max and lentil Lens culinaris L.), field peas Pisum sativum faba bean Vicia canola Brassica napus flax Linum usitatissimum oats Avena sativa different schemes following crop: WW‐WW, hard red spring (HRSW)‐WW,...

Abstract In response to concerns about acetolactate synthase (ALS) inhibitor–resistant weeds in wheat production systems, we explored the efficacy of managing Bromus spp., downy and Japanese bromes, a winter system using alternative herbicide treatments applied either fall or spring. Trials were established at Lethbridge Kipp, Alberta, Scott, Saskatchewan, Canada over three growing seasons (2012–2014) compare pyroxasulfone (a soil-applied very-long-chain fatty acid elongase inhibitor; WSSA...

In view of the significant differences among genotypes in appearance soft rice, it is necessary to conduct research on quality rice and their mechanisms. It can provide a theoretical basis for selection breeding superior varieties at later stage. order clarify phenotypes between different structural endosperm structures behind differences, four were selected this study, including two with good-appearance cloudy appearance. The structure mature grains scientifically analyzed. development...

Abstract BACKGROUND: Understanding wheat flour noodle quality responses to N management will improve the of recommendations made growers for specific end‐uses. Two winter cultivars, with six rates, planted during course a 2‐year experiment were used determine effect application rate on Chinese white quality. RESULTS: Wheat protein content, development time (DT) and stability (ST) increased rate, maximal at 360 kg ha −1 decreasing thereafter. When fertilizer changed from 0 270 or , redness (...

Optimizing the timing of nitrogen (N) enhanced efficiency fertilizers (EEFs) may maximize winter wheat ( Triticum aestivum L.) grain yield, protein content, and N-use (NUE). From 2013 to 2018, experiments were conducted at two irrigated six rain-fed sites across Canadian Prairies (24 site-years) evaluate responses N source timing/placement effects EEFs. Nitrogen sources included untreated urea, nitrification inhibitor nitrapyrin treated urease N-( n-butyl) thiophosphoric triamide (NBPT) plus...

Granular urea fertilizer applied at planting is prone to nitrogen (N) losses in certain environments. Enhanced efficiency fertilizers (EEFs) are developed mitigate and optimize plant uptake. To determine the benefits of EEFs grain yield quality enhancement Canada Western Red Spring (CWRS) wheat, an experiment was conducted from 2019 2022 eight sites Alberta Saskatchewan, Canada. The effects five N sources [urea; + urease inhibitor, N-( n-butyl)thiophosphoric triamide (NBPT); nitrification...

Abstract Introduction The aim of this study was to evaluate the effect negative energy balance (NEB) on final growth dominant ovarian follicle in Holstein cows. Material and Methods Cows at 14 21 d postpartum from an intensive dairy farm were randomly selected allocated into a positive group (PEB, with β-hydroxybutyric acid (BHBA) level < 1.2 mmol/L, n = 15) NEB (BHBA > 15). Plasma samples collected 21, 50 55 assess concentrations metabolites, minerals, hormones cytokines. Ovaries...

Winter wheat ( Triticum aestivum L.) is a highly competitive crop with the potential to enhance on-farm revenue and reduce reliance on protection inputs. The adoption of winter in Canadian Prairies has varied significantly over recent decades; however, improved weed disease management practices could facilitate stability hectares cultivated. To assess current alternative pesticide practices, we conducted study across 15 site-years at four locations 4 years (2018–2022). Experimental...

Inactive ovaries (IO) accounts for 50% of ovarian disease in postpartum dairy cows, which seriously affects their reproductive efficiency. To investigate the metabolic changes serum and follicular fluid cows with IO during lactation, six estrus (E) at 50 to 55 days milk were selected based on B ultrasonic detection clinical manifestations. The differential metabolites between E identified by ultra-high-pressure liquid chromatography-quadrupole time-of-flight mass spectrometry, combined...

Inactive ovaries (IO) and ovarian (follicular or luteal) cysts (FC LC) are two common diseases leading to infertility in dairy cattle. Both disorders associated with altered metabolites hormones. There currently no known effective biomarkers that can be used for early diagnosis of diseases. The purpose this study was identify the plasma Holstein cows facilitate an control its progression. experiment performed from 3 weeks postpartum last 7 weeks. Seventy-six multiparous (mean age, 4.36...

To evaluate how enhanced efficiency liquid nitrogen (N) fertilizers affect winter wheat ( Triticum aestivum L.) production under irrigated and rain-fed environments, experiments were conducted at two five sites across the Canadian Prairies from 2013 to 2018 (22 site-years). The N included urea ammonium nitrate (UAN) treated with i) urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), ii) NBPT plus nitrification dicyandiamide, iii) nitrapyrin (Nitrapyrin), as well untreated UAN urea,...

Schellenberg, M. P., Biligetu, B., McLeod, G. J. and Wang, Z. 2012. Phenotypic variation of side-oats grama grass [ Bouteloua curtipendula (Michx.) Torr.] collections from the Canadian prairie. Can. Plant Sci. 92: 1043–1048. Native prairie grasses are adapted to local climates have potential for development as forage cultivars semiarid environments. Side-oats [Bouteloua is a drought-tolerant with desirable characteristics, distributed across prairies throughout Great Plains. Understanding...

Postpartum inactive ovaries (IOs) in dairy cows reduce the economic returns of industry. It is related to energy metabolism disorder, inflammatory response and oxidative stress. The objective this study was investigate association liver function index (LFI) serum cytokines at 21 days postpartum with IO predict risk cows. blood 60 parturient collected through caudal root vein 3, 21, 28 55 postpartum. Ultrasonography performed 50 determine follicular development. With median LFI as standard,...

Abstract The recovery of fertilizer nitrogen by crops in the year application is usually cited as being about 50%, despite considerable efforts to improve efficiencies agricultural systems. use additives containing urease and/or nitrification inhibitors may N efficiency. This was evaluated four experiments conducted at multiple locations across Canadian Prairies. Earn 0.5 CEUs Nutrient Management reading article and taking quiz https://web.sciencesocieties.org/Learning‐Center/Courses .

Yield and quality improvements in Canada Western Red Spring (CWRS) wheat ( Triticum aestivum L.) are increasingly difficult to attain, which behooves a systems approach unlock genotype (G) × environment (E) management (M) synergies. This 25 site-year study was designed assess G E M improve CWRS agronomics, quality, N use efficiency (NUE). The investigation consisted of genetics (AAC Viewfield vs. AC Stettler), source (untreated urea; urea + urease inhibitor, N-(n-butyl) thiophosphoric...

Clinical ketosis is a detrimental metabolic disease in dairy cows, often accompanied by severe lipolysis and inflammation adipose tissue. Our previous study suggested 2.401-fold upregulation the calmodulin (CaM) level tissue of cows with clinical ketosis. Therefore, we hypothesized that CaM may regulate inflammatory responses To verify hypothesis, conducted thorough veterinary assessment symptoms serum β-hydroxybutyrate (BHB) concentration. Subsequently, collected subcutaneous samples from...

Abstract Background Left displacement of the third gastric compartment (LDC3) in alpacas is an extremely rare condition and has not been reported thus far. Therefore, we describe clinical diagnosis treatment LDC3 alpaca. Case presentation A 2-year-old brown female alpaca ( Vicugna pacos ) was presented to evaluate a 3-day history abdominal distension causing loss both appetite thirst, along with oliguria low no defecation. Clinical examination, X-ray surgical exploration, determination pH...

Negative energy balance (NEB) causes economic losses to dairy farms around the globe. The aim of this study was investigate effect NEB on metabolism, reproduction, etc. during early lactation in cows intensive Heilongjiang, China. According β- hydroxybutyric acid (BHBA), glucose (GLU), Non-esterified fatty (NEFA) levels, and clinical manifestations 14-21 days postpartum, 118 were divided into a positive (PEB) group (BHBA<1.2, GLU>2.8, NEFA<0.7 mmol/L, n=67) an (BHBA>1.2,...