A5105407465- Animal Nutrition and Physiology
- Animal Behavior and Welfare Studies
- Odor and Emission Control Technologies
- Effects of Environmental Stressors on Livestock
- Meat and Animal Product Quality
- Greenhouse Technology and Climate Control
- Indoor Air Quality and Microbial Exposure
- Air Quality and Health Impacts
- Inflammatory Myopathies and Dermatomyositis
- Agriculture Sustainability and Environmental Impact
- Livestock and Poultry Management
- Insect and Pesticide Research
- Bird parasitology and diseases
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Advanced Chemical Sensor Technologies
- Composting and Vermicomposting Techniques
- Soil and Water Nutrient Dynamics
- Air Quality Monitoring and Forecasting
- Vehicle emissions and performance
- Physiological and biochemical adaptations
- Smart Materials for Construction
- Skin Diseases and Diabetes
- Systemic Sclerosis and Related Diseases
- Wastewater Treatment and Nitrogen Removal
- Wind and Air Flow Studies
Ningxia Medical University
2024-2025
Ningxia Medical University General Hospital
2024-2025
Xinjiang Academy of Agricultural Sciences
2024
Iowa State University
2008-2019
Egg Industry Center
2014
University of Arkansas at Fayetteville
1992-1994
To comprehensively assess conventional vs. some alternative laying-hen housing systems under U.S. production conditions, a multi-institute and multi-disciplinary project, known as the Coalition for Sustainable Egg Supply (CSES) study, was carried out at commercial egg farm in Midwestern United States over two single-cycle flocks. The studied include cage house (200,000 hen capacity), an aviary (50,000 enriched colony capacity). As integral part of CSES continual environmental monitoring...
Core body temperature is an important physiological measure of animal thermoregulatory responses toenvironmental stimuli. A new telemetric measurement system was evaluated by three independentlaboratories for its research application in poultry, swine, beef, and dairy cattle. In the case poultry systememploys surgery.free sensors that are orally administered to allow shortterm monitoring. Computationalalgorithms were developed used filter out spurious data. The results indicate successful...
Core body temperature (tb) of marketsize male broilers (46 .3 d; 2.8 .0.1 kg; Ross . breed) wascontinuously measured by telemetry during acute, 90 to 240min exposures 18 thermally challenging conditions. Thethermal conditions consisted factorial combinations three drybulb air temperatures (tdb; 35.C, 38.C, and 41.C),two dewpoint (tdp; 19.4.C 26.1.C), velocities (V; 0.2, 0.7, 1.2 m s1). Based on tb riseafter 90min the thermal conditions, a temperaturehumidityvelocity index (THVI) was...
Ammonia emission is a major concern for the poultry industry and can be lowered by dietary inclusion of fibrous ingredients lowering CP content. The objectives this research were to determine effects fiber reduced-CP diets, which may lower NH3 emission, on egg production N balance in laying hens. A total 256 Hy-Line W-36 hens fed diets with 2 contents (normal reduced) 4 treatments × factorial arrangement from 23 58 wk age. included corn soybean meal-based control diet formulated either 10.0%...
As an integral part of the Coalition for Sustainable Egg Supply (CSES) Project, this study simultaneously monitored air emissions 3 commercially operated egg production systems at house level and associated manure storage over 2 single-cycle flocks (18 to 78 wk age). The housing were 1) a conventional cage (CC) with 200,000-hen capacity (6 hens in stocking density 516 cm2/hen), 2) enriched colony (EC) 50,000-hen (60 per 752 3) aviary (AV) (at 1253 1257 cm2/hen). hen houses located on same...
Ammonia (NH3) emission is a major concern for the poultry industry. The objective of this research was to determine whether inclusion dietary fiber and reduced CP content would decrease NH3 from laying-hen manure. A total 256 Hy-Line W-36 hens were fed diets with 2 levels (normal reduced) 4 treatments in × factorial arrangement. included corn soybean meal-based control diet formulated either 10.0% dried distillers grains solubles (DDGS), 7.3% wheat middlings (WM), or 4.8% hulls (SH)...
Practical means to decrease aerial emissions will enhance the ability of US egg industry improve environmental stewardship while continuing provide consumers safe and affordable eggs. Ammonia from manure-belt laying hen houses have been shown be less than 10% high-rise counterparts where manure is stored in-house for a year. However, on-farm storage also emits NH3, which part total farm emissions. Nevertheless, treating in sheds NH3 may more readily implemented treatment inside layer because...
This paper is an integral part of the special publication series that arose from multidisciplinary and multi-institutional project Coalition for Sustainable Egg Supply (CSES). The CSES involves 3 housing systems egg production at same research farm site in Midwest, USA, namely, a conventional cage (CC) house, aviary (AV) enriched colony (EC) house. CC house (141.4 m L × 26.6 W 6.1 H) had nominal capacity 200,000 hens (6 stocking density 516 cm2/hen), cages were arranged 10 rows, 8 tiers per...
Patients with antimelanoma differentiation-associated gene 5 antibody-positive dermatomyositis-associated interstitial lung disease (anti-MDA5+DM-ILD) are susceptible to rapidly progressive (RP-ILD) and have a high risk of mortality. There is an urgent need for reliable prediction model, accessible via easy-to-use web-based tool, evaluate the death. This study aimed develop validate model 3-month mortality using machine learning (ML) in large multicenter cohort patients anti-MDA5+DM-ILD...
The US egg industry is exploring alternative housing systems for laying hens. However, limited published research related to cage-free aviary and enriched colony cages exists production, quality, hen nutrition. hen's nutritional requirements resulting productivity are well established with the conventional cage system, but diminutive available in regards systems. restrictions exist availability of settings considerable expense increased bird numbers a replicate due system design. Therefore,...
A multi-state, multi-disciplinary research project is currently underway to quantify aerial ammonia (NH3) emissions from selected US poultry houses with different housing and management schemes. series of publications will result this study. This paper highlights the system techniques used by participating institutions continuously measure NH3 carbon dioxide concentrations determine building ventilation rate. Specifically, a portable monitoring unit (PMU) has been developed refined for field...
We present a measurement method for NH3 emissions from mechanically ventilated poultry buildings, which has been successfully used in multistate, multidisciplinary research project to establish baseline values the United States. To accurately determine building emission rate (ER, product of pollutant concentration and exhaust airflow rate), accurate measurements must be made over representative periods production phases. an innovative, low-cost, methodology that allows multiple buildings...
ABSTRACT Two swine feeding trials were conducted (initial body weight = 47 ± 2 and 41 3 kg for Trials 1 2, respectively) to evaluate reduced crude protein (CP) yucca ( Yucca schidigera Roezl ex Ortgies) extract–supplemented diets on NH emissions. In Trial 1, nine pigs offered a corn–soybean meal diet (C, 174 g −1 CP), Lys‐supplemented (L, 170 or 145 CP supplemented with Lys, Met, Thr, Trp (LMTT). fed L 0, 62.5, 125 mg of extract per diet. Each period consisted 4‐d dietary adjustment followed...
Airborne microorganism level is an important indoor air quality indicator, yet it has not been well documented for laying-hen houses in the United States. As a part of Coalition Sustainable Egg Supply (CSES) environmental monitoring project, this study comparatively monitored concentrations and emissions airborne total Gram-negative (Gram−) bacteria three types commercial houses, i.e., conventional cage (CC), aviary (AV), enriched colony (EC) over period eight months covering mid late stages...
This study characterizes the responses, particularly diurnal variations, of thyroid hormones (TH) [3,5,3′-triiodothyronine (T3), thyroxine (T4), and T3:T4 ratio (T3/T4)] Arbor Acres broilers to constant thermoneutral (TN) or warm cyclic (WC) temperatures. There existed distinct circadian variations—2 peaks in TH under TN WC conditions. The 2 T3, T4, T3/T4 occurred, respectively, at 0 16 h, 8 12 h condition; but 4 During a 5-d heat exposure (HE) regimens, T3 T4 showed continual decrease....
Light-emitting diode (LED) lights are becoming more affordable for agricultural applications. Despite many lab-scale studies concerning impact of LED on poultry, little research has been documented under field production conditions, especially laying hens. This 15-month study was carried out to evaluate the effects vs. fluorescent (FL) hens (Dekalb white breed) using 4 (2 pairs) aviary hen houses each at a nominal capacity 50,000 The evaluation done regarding operational characteristics and...
Infrared thermography (IRT) was compared with the traditional 4-scale feather scoring (FS, 1 representing worst coverage and 4 best) method for assessing of laying hens. The 6 body parts (head, dorsal neck, front neck crop, back, breast, belly), surface temperature distribution, relative change in sensible heat loss 60 hens (Lohmann SL white breed) at 28, 56, or 73 wk age (20 per group) were by using IRT. For all area-weighted overall, area excellent (EF) determined IRT positively correlated...
Daily feed use, water body weight, and mortality of Cobb × male broilers over 8-wk growout periods were measured for 10 consecutive growouts in four commercial-scale broiler houses (121.0 12.1 m each). Polynomial equations developed to relate bird age daily cumulative weekly mortality. Weekly conversion was derived from growth use data depicted by a third-order polynomial equation. Dead weight calculated using the related with three period. Total dead averaged 76 kg per 1,000 birds placed,...