Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Medicine and Health Sciences (21408)
- Social and Behavioral Sciences (13556)
- Education (8352)
- Life Sciences (6843)
- Law (5815)
-
- Arts and Humanities (5180)
- Public Health (4750)
- Medical Specialties (4717)
- Physical Sciences and Mathematics (4074)
- Higher Education (3277)
- Psychology (3107)
- Business (2878)
- Engineering (2841)
- Nursing (2494)
- Medical Sciences (2286)
- Sociology (2105)
- Diseases (1767)
- Public Affairs, Public Policy and Public Administration (1717)
- Library and Information Science (1621)
- Communication (1510)
- Environmental Sciences (1362)
- History (1325)
- Medical Education (1174)
- Biology (1071)
- Rehabilitation and Therapy (1061)
- Mental and Social Health (1008)
- Economics (924)
- Computer Sciences (860)
- Pharmacy and Pharmaceutical Sciences (804)
- Educational Administration and Supervision (801)
- Institution
-
- University of Memphis (2026)
- Western Michigan University (1461)
- University of Kentucky (1438)
- University of Nebraska - Lincoln (1426)
- Walden University (1360)
-
- San Jose State University (1293)
- Washington University School of Medicine (1158)
- Chulalongkorn University (1075)
- Thomas Jefferson University (1017)
- University of Alabama at Birmingham (1002)
- Georgia Southern University (873)
- Aga Khan University (872)
- The Texas Medical Center Library (853)
- University of Central Florida (839)
- University of South Carolina (824)
- University of New Hampshire (802)
- City University of New York (CUNY) (799)
- TÜBİTAK (798)
- University of Mississippi (790)
- Utah State University (748)
- University of Plymouth (746)
- University of Montana (741)
- University of New Mexico (704)
- University of South Florida (700)
- Universitas Indonesia (691)
- Louisiana State University (656)
- Nova Southeastern University (638)
- Liberty University (628)
- University of Arkansas, Fayetteville (623)
- East Tennessee State University (615)
- Keyword
-
- COVID-19 (3506)
- Humans (1230)
- Michigan (1071)
- Pandemic (666)
- Education (648)
-
- Mental health (599)
- Female (541)
- Male (481)
- Coronavirus (472)
- Georgia Southern University (454)
- Covid-19 (430)
- SARS-CoV-2 (410)
- Release (356)
- Depression (352)
- Children (341)
- COVID-19 cases (330)
- Health (319)
- Women (313)
- United States (312)
- Animals (305)
- School of medicine (303)
- Adult (297)
- Obesity (292)
- Gay community. (291)
- Gays -- Southern States -- Periodicals. (291)
- Anxiety (290)
- Gender (283)
- Newsletter (283)
- Undergraduate (283)
- Public health (282)
- Publication
-
- Theses and Dissertations (1697)
- Walden Dissertations and Doctoral Studies (1256)
- Faculty Publications (940)
- Library Philosophy and Practice (e-journal) (939)
- Dissertations (856)
-
- Open Access Publications (768)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (742)
- Electronic Theses and Dissertations (709)
- Browse All News (605)
- Research outputs 2014 to 2021 (515)
- Honors Theses (487)
- Faculty Scholarship (454)
- Session Laws 2001-Present (451)
- Turkish Journal of Medical Sciences (423)
- Bulletins (405)
- 2020-Current year OA Pubs (383)
- Florida Historical Quarterly (377)
- Doctoral Dissertations and Projects (374)
- Articles (339)
- Publications and Research (317)
- USF Tampa Graduate Theses and Dissertations (314)
- Faculty, Staff and Students Publications (313)
- University of Montana Course Syllabi (301)
- Theses (294)
- Journalism and Strategic Media Syllabi Archive (282)
- International Journal of Exercise Science: Conference Proceedings (272)
- Master's Theses (246)
- ETSU News (230)
- Masters Theses (227)
- Cumulative Michigan COVID-19 Data (224)
- Publication Type
Articles 74221 - 74250 of 76683
Full-Text Articles in Entire DC Network
Anthology Of An Empath, Meriel Melendrez Mees
Anthology Of An Empath, Meriel Melendrez Mees
Cal Poly Humboldt theses and projects
How can we live here together? How can we, human beings (especially those of us not considered as such, historically, presently, or in the future) and more-than-human beings live here together and care for each other? I set out to learn how a pair of permaculture farmers in Southern Humboldt lived and worked with these questions: I attempted a qualitative and quantitative analysis of twenty years of natural history journals that one of them recorded. I was particularly interested in the aesthetics of land tending, affective relationships with more-than-human beings, and disrupting settler colonialism through epistemic reparations to the Sinkyone …
Why Do People Donate? Motivation Of Major Donors In Higher Education, Karin Hsuan Chao-Bushoven
Why Do People Donate? Motivation Of Major Donors In Higher Education, Karin Hsuan Chao-Bushoven
Cal Poly Humboldt theses and projects
Higher education has relied on private philanthropy since the establishment of the first universities in the U.S. This reliance has increased over the decades as a result of rising costs and decreased government investment. As such, it has become more critical to better understand what factors motivate philanthropists to increase their support of higher education; including direct support for teaching and research and increasing financial support for those students otherwise not able to pursue secondary education. However, much of the existing data focuses only on point-of-philanthropic-act, and neglects to examine motivational factors of long-term donors that have progressively increased their …
Effects Of Prescribed Fire On Drought Resistance And Recovery In Mixed Conifer Forests Of Lassen Volcanic National Park, California, Zachary J. Wenderott
Effects Of Prescribed Fire On Drought Resistance And Recovery In Mixed Conifer Forests Of Lassen Volcanic National Park, California, Zachary J. Wenderott
Cal Poly Humboldt theses and projects
Forests throughout much of the western United States are experiencing increasing climatic variability, often resulting in decreased forest productivity and elevated likelihood of tree mortality. Severe drought, such California’s recent 2012-2015 drought, are projected to increase in intensity, frequency, and severity throughout much of this region in coming years. Forest management has long relied on prescribed fire and mechanical thinning to reduce fuel loads and ameliorate potential fire hazards. These treatments may also have the ability to reduce stand density, alleviate competitive pressures, and allow residual trees access to critical resources during periods of extreme stress. Utilizing a long-term National …
Beyond Care And Order In School Climate: A Qualitative Study Of Defender And Outsider Cognitions In Bullying Situations, William S. Richards Iv
Beyond Care And Order In School Climate: A Qualitative Study Of Defender And Outsider Cognitions In Bullying Situations, William S. Richards Iv
Cal Poly Humboldt theses and projects
This study examined the cognitions of students who intervene or do not intervene when they witness bullying incidents along with the ways that these cognitions may relate to these students’ perceptions of school climate at a small, rural high school in Northern California. Because increasing the frequency of bystander intervention has been found in prior studies to decrease bullying, this study illuminates the cognitive processes that support agency to intervene in bullying and distinguish them from cognitive processes that reduce agency to intervene. This study also identifies possible links between the ways students perceive school climate and their agency to …
Exploring Renewable Energy Futures In Humboldt County Consistent With The Goals Of California’S Renewable Portfolio Standard, Amin M. Younes
Exploring Renewable Energy Futures In Humboldt County Consistent With The Goals Of California’S Renewable Portfolio Standard, Amin M. Younes
Cal Poly Humboldt theses and projects
Humboldt County has abundant wind, solar, and biomass resources, but has made limited progress towards the state’s 2045 requirement of 100% clean electricity. A recently rejected onshore wind project showed that technically and economically viable projects can fall to social and political challenges, emphasizing the need for social considerations in renewable transitions. I therefore integrated community members’ preferences into modeling of RPS-consistent renewable energy scenarios in Humboldt County. My model suggests that offshore wind, utility-scale solar, distributed solar, and biomass power are technically and economically viable sources of significant local generation at varying costs.
In interviews with energy-engaged residents, I …
May All Teachers Be Happy: A Mindfulness Manual For School Staff, Laura Ella Ashley
May All Teachers Be Happy: A Mindfulness Manual For School Staff, Laura Ella Ashley
Cal Poly Humboldt theses and projects
There are many teachers who leave the profession early due to burnout; furthermore, there are many requirements for teachers to support the social emotional wellness of their students. With training provided to teachers as to how to help students as the norm, and no support for helping the teachers who are burnt out, this project aims to bridge this gap. After facilitating and surveying participants in a mindfulness staff group, the results of this study clearly show that teacher well-being can be supported, and enhanced, with a simple mindfulness support group provided on site to school staff.
The Role Of Hardiness And Autonomy Support On College Student Engagement, Kevin Douglas Cherry
The Role Of Hardiness And Autonomy Support On College Student Engagement, Kevin Douglas Cherry
Cal Poly Humboldt theses and projects
The gap between college student enrollment and graduation rates remains a problem for college students and administrators. Literature on persistence in college suggests that factors such as hardiness and autonomy support may contribute to student perseverance through degree attainment. The current study focused on these constructs using a framework based on self-determination theory (SDT; Ryan & Deci, 1985). Factors related to student persistence, namely hardiness and autonomy support, were expected to positively predict college student engagement. Furthermore, hardiness was expected to moderate the relationship between autonomy support and college student engagement. College students from a university and a community college …
Write Yourself Awake: The Double Pursuit Of Mindfulness Meditation And Writing, Alysia M. Hegg
Write Yourself Awake: The Double Pursuit Of Mindfulness Meditation And Writing, Alysia M. Hegg
Cal Poly Humboldt theses and projects
Contemplative pedagogy involves teaching methods designed to cultivate deepened awareness, concentration, and insight. Contemplative practices work to undo the Cartesian mind–body dualism that says that mental phenomena are non-physical, or that the mind and body are distinct and separable. This project focuses on an understanding that our internal world includes communication with one’s self, acts of imagination and visualization, and recall and memory. These internal experiences foster many things, such as compassion and kindness, as well as resilience and sustainability through connection.
“McMindfulness” is a term that refers to when mindfulness is used for self-serving and ego-enhancing purposes. Symptoms of …
Can A Remote Sensing Approach With Hyperspectral Data Provide Early Detection And Mapping Of Spatial Patterns Of Black Bear Bark Stripping In Coast Redwoods?, Shayne R. Magstadt
Can A Remote Sensing Approach With Hyperspectral Data Provide Early Detection And Mapping Of Spatial Patterns Of Black Bear Bark Stripping In Coast Redwoods?, Shayne R. Magstadt
Cal Poly Humboldt theses and projects
The prevalence of black bear (Ursus americanus) bark stripping in commercial redwood (Sequoia sempervirens) timer stands has been increasing in recent years. This stripping is a threat to commercial timber production because of the deleterious effects on redwood tree fitness. This study sought to unveil a remote sensing method to detect these damaged trees early and map their spatial patterns. By developing a timely monitoring method, forest timber companies can manipulate their timber harvesting routines to adapt to the consequences of the problem. We explored the utility of high spatial resolution UAV-collected hyperspectral imagery as a …
A Comparison Of The Removal Of Estrogen Between Different Wastewater Treatment Processes, Danielle J. Jones
A Comparison Of The Removal Of Estrogen Between Different Wastewater Treatment Processes, Danielle J. Jones
Cal Poly Humboldt theses and projects
Pharmaceuticals are found in water systems and are classified as contaminants due to their adverse effects on numerous types of aquatic organisms. Estradiol, a natural occurring estrogen and ethinylestradiol, a common synthetic estrogen found in birth control, are a class of pharmaceuticals called endocrine-disruptive contaminants (EDC). These contaminants have been shown to cause developmental delays in fish as well as feminizing male fish in concentrations as low as 1 ng/L for both estradiol and ethinylestradiol, and bioaccumulating in mollusks and oysters. There are many natural and human-assisted methods for removing pharmaceuticals in water, and they are dependent on both the …
Wingate Muscular Power Test Reference Values For Active Healthy Adults Ages 19-29: Normative Data And Differences Between Sex, Levi Basist
Cal Poly Humboldt theses and projects
The Wingate Muscular Power Test (WMPT) has existed for several decades and to this day is considered the gold standard for evaluating an individual’s muscular power. However, the utility of this test is predicated on having accurate and relevant normative data with which to compare individual results. At present, the existing literature on this subject is either several decades old and/or inclusive of only specific subject groups (i.e. men only or sport-specific athletes). This study presents WMPT normative values for active healthy adults ages 19-29, separated by sex. The sample consisted of 330 active healthy volunteers (186 men and 144 …
Laboratory To Landscape: Mycorestoration, Riley Sanae Allen
Laboratory To Landscape: Mycorestoration, Riley Sanae Allen
Cal Poly Humboldt theses and projects
Mycorestoration is the use of saprophytic fungi to remediate pollutants from land and water. To address contaminant presence in non-point source pollution primarily from agricultural runoff, we worked towards identifying the community-scale implementation process of mycofiltration, a type of mycorestoration that filters contaminants from water, in Arcata, California. This place-based study used Participatory Action Research (PAR) to collaboratively conduct Transdisciplinary Research (TR) to collect baseline qualitative and quantitative data that did not exist for Arcata’s context. These data have been compiled into a written implementation plan which is intended to exist as a living document that is referenced and transformed …
Use Of Redwood Basal Hollows By Bats: A Focus On The Townsend's Big-Eared Bat On The North Coast Of California, Amon Jotesh Armstrong
Use Of Redwood Basal Hollows By Bats: A Focus On The Townsend's Big-Eared Bat On The North Coast Of California, Amon Jotesh Armstrong
Cal Poly Humboldt theses and projects
Loss of roosting resources, either through disturbance or removal, negatively affects bats. For sensitive species, such as the Townsend’s big-eared bat (Corynorhinus townsendii), determining roost requirements is a critical component in conserving their habitat. Such cavity roosting bats on the North Coast of California may use hollows in large redwood trees. In this study, I examined the factors determining the use of basal tree hollows by different bat species at eight redwood forest sites in Del Norte, Humboldt, and Mendocino Counties, California. Bat guano was collected from 179 basal hollow roosts from 2017 to 2018, and guano mass …
A Techno-Economic Comparison Of Battery Electric And Hydrogen Fuel-Cell Transit Bus Fleet Options For Humboldt County, California, Aditya S. Kushwah Mr.
A Techno-Economic Comparison Of Battery Electric And Hydrogen Fuel-Cell Transit Bus Fleet Options For Humboldt County, California, Aditya S. Kushwah Mr.
Cal Poly Humboldt theses and projects
This study analyzes the techno-economic feasibility of converting the conventional transit bus fleet of the Humboldt Transit Authority (HTA) into a battery-electric or a hydrogen-fueled bus fleet. The study identifies which of these technologies represents the more economically viable investment for HTA by analyzing the costs and benefits associated with each pathway. Both pathways involve zero-emission or low-emission technologies.
The study outcomes suggest that the conversion of the HTA’s current conventional fleet to an electric fleet is more feasible than conversion to a hydrogen fuel cell bus fleet. The total discounted cost (3% rate) of converting the 21-bus conventional fleet …
On The Acceptance Of Urban Beavers In Martinez, California, Zane A. Eddy
On The Acceptance Of Urban Beavers In Martinez, California, Zane A. Eddy
Cal Poly Humboldt theses and projects
As ecosystem engineers, beavers construct complex riparian and wetland habitats that benefit many other species, including endangered salmonids. Through their landscape alterations, beavers also promote increased groundwater recharge and provide refugia during wildfires and high flow events by impounding water and allowing it to spread across the landscape. Prior to the North American colonial fur trapping campaigns, there were between 60 and 400 million beavers in North America. By the beginning of the 20th century, beavers were extirpated from many parts of the continent, however through human efforts, their population has since rebounded to between 10 and 15 million. The …
A Survey On The Status Of Acceptance And Commitment Training In Rural Northern California, Jacqueline A. Morris
A Survey On The Status Of Acceptance And Commitment Training In Rural Northern California, Jacqueline A. Morris
Cal Poly Humboldt theses and projects
The interest in acceptance and commitment training (ACT) from within the applied behavior analysis (ABA) community has increased as evidenced by recently published literature addressing the need to examine the acceptability and utilization of ACT within ABA. However, there is limited literature on the perspectives of those working in the field of ABA on the use of ACT. In the present study a survey was conducted of ABA practitioners working in rural northern California to evaluate their level of interest in ACT, their perceptions of ACT being within the scope of practice of ABA, and any perceived challenges in developing …
An Overview Of Electronic Preference Assessments And Recommendations For Their Use In Telehealth, Giancarlo Anro
An Overview Of Electronic Preference Assessments And Recommendations For Their Use In Telehealth, Giancarlo Anro
Cal Poly Humboldt theses and projects
Preference assessments are used to systematically determine an individuals preferred items to be used as potential reinforcers during service delivery. Electronic preference assessments typically do not use tangible items but instead present electronic representations of these tangible items, such as electronic pictures or videos, to the client. The purpose of this overview is to introduce the history and traditional use of electronic preference assessments and then to provide practical recommendations for using an electronic preference assessment while providing behavioral services through a telehealth model. When conducting an electronic preference assessment during a telehealth session two primary considerations need to be …
Review Of Suspect Communities: Anti-Muslim Racism And The Domestic War On Terror, Louise Cainkar
Review Of Suspect Communities: Anti-Muslim Racism And The Domestic War On Terror, Louise Cainkar
Social and Cultural Sciences Faculty Research and Publications
No abstract provided.
Queering Bostock, Jeremiah A. Ho
Queering Bostock, Jeremiah A. Ho
All Faculty Scholarship
Although the Supreme Court’s 2020 Title VII decision, Bostock v. Clayton County, Georgia, is a victory for LGBTQ individuals, its doctrinal limitations unavoidably preserve a discriminatory status quo. This Article critically examines how and why Bostock fails to highlight the indignities experienced by queer minorities under decades of employment discrimination. In Bostock, Justice Gorsuch presents a sweeping textualist interpretation of Title VII that protects against sexual orientation and gender identity discrimination. Yet, the decision sparsely recognizes queer lived experiences, compared to prior pro-LGBTQ cases where such recognition contributed to developing an anti-stereotyping framework that confronted some of the heteronormative biases …
The Functional Operation Of Workers’ Compensation Covid Presumptions, Michael C. Duff
The Functional Operation Of Workers’ Compensation Covid Presumptions, Michael C. Duff
All Faculty Scholarship
During 2020, a number of U.S. states implemented workers' compensation COVID-19 presumptions. This short informal paper defines and explains legal presumptions generally and then discusses the workers' compensation presumptions. The paper contends that at this juncture it is not clear whether states intended to enact "Thayer-Wigmore" or "Morgan" presumptions; but if they operate as Thayer-Wigmore presumptions they will not do workers' compensation claimants much good in the context of non-jury proceedings presided over by administrative law judges.
Challenges For Black Workers After 2020: Antiracism In The Gig Economy?, Michael C. Duff
Challenges For Black Workers After 2020: Antiracism In The Gig Economy?, Michael C. Duff
All Faculty Scholarship
Black workers’ fortunes in the coming decades are tied to the expansion of the Gig economy, the impact of which is to destroy employee status. Because much antiracism law and policy has been transmitted to society through the medium of employment law, the disappearance of employee status should be of concern to all foes of racism. This short essay argues that Section 1981 of the Civil Rights Act of 1866 should be expanded to cover all forms of racist workplace conduct. Regulatory arbitrage will continue to challenge the definition of employment for the foreseeable future. It is fitting that one …
A Quality Assessment Directory For Evaluating Multi-Functional Public Spaces, M. Salim Ferwati, Ali Keyvanfar, Arezou Shafaghat, Omar Ferwati
A Quality Assessment Directory For Evaluating Multi-Functional Public Spaces, M. Salim Ferwati, Ali Keyvanfar, Arezou Shafaghat, Omar Ferwati
Faculty Articles
Public spaces facilitate opportunities for social interaction and promote social life. The social-spatial complexity of public spaces can be explored through the relationship between built forms and users' daily social activities. The contemporary needs of users have retrofitted or replaced the controversial public spaces such as streets, depriving the prime function of sustaining and facilitating social life. Thus, any factors influencing users' social/public life impact the quality of public spaces. Also, contextualization and definition of public spaces necessitate an evaluation of their quality. The lack of a quality assessment directory (QAD) for evaluating multi-functional public spaces motivated us to address …
Associations Of Snps In Ghr Gene With Growth And Milk Yield Of Anatolian Buffaloes, Meti̇n Erdoğan, Mustafa Tekerli̇, Koray Çeli̇keloğlu, Özlem Hacan, Serdar Koçak, Zehra Bozkurt, Samet Çi̇nkaya, Mustafa Demi̇rtaş
Associations Of Snps In Ghr Gene With Growth And Milk Yield Of Anatolian Buffaloes, Meti̇n Erdoğan, Mustafa Tekerli̇, Koray Çeli̇keloğlu, Özlem Hacan, Serdar Koçak, Zehra Bozkurt, Samet Çi̇nkaya, Mustafa Demi̇rtaş
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to investigate the associations between single nucleotide polymorphisms (SNP) in the growth hormone receptor (GHR) gene and growth and milk yields of Anatolian buffaloes. Growth records of genotyped 3012 Anatolian buffaloes and 467 lactations of 329 cows from them were used. The overall means of weights at birth, six and 12 months of ages and lactation milk yield were 29.377 ± 0.342 kg, 96.15 ± 1.48 kg, 165.54 ± 2.18 kg, and 976.3 ± 39.9 kg, respectively. Three mutations (g.31601787 G > A, g.31601784 G > A, and g.31601783 G > del) in GHR were detected. A least-squares …
Rater Reliability Of The Functional Movement Screen: An Evidence-To-Practice Review, Nate Orth, Adam Graham, Zachary K. Winkelmann
Rater Reliability Of The Functional Movement Screen: An Evidence-To-Practice Review, Nate Orth, Adam Graham, Zachary K. Winkelmann
Clinical Practice in Athletic Training
The purpose of this evidence-to-practice review is to summarize a systematic review on the inter- and intrarater reliability of the Functional Movement Screen (FMS). Reliability is crucial to the FMS, as clinicians may retest to view a patient’s changes and improvements in movement patterns. This review and analysis looked at 7 studies which showed that both inter- and intrarater reliability were good. Studies were only included if the primary focus was on inter- and intrarater reliability. Clinicians had varying levels of familiarity with the FMS process. Athletic training students with less than one year to no experience were found to …
Past, Present, And Future Of Lgbtq Health Care, Emma Nye
Past, Present, And Future Of Lgbtq Health Care, Emma Nye
Clinical Practice in Athletic Training
No abstract provided.
A Proposed Return-To-Ride Protocol For United States Jockeys Following Concussion, Carolina Quintana, Kimberly I. Tumlin, Matthew C. Hoch, Nicholas R. Heebner, Bianca L. Grimshaw, Carl G. Mattacola
A Proposed Return-To-Ride Protocol For United States Jockeys Following Concussion, Carolina Quintana, Kimberly I. Tumlin, Matthew C. Hoch, Nicholas R. Heebner, Bianca L. Grimshaw, Carl G. Mattacola
Clinical Practice in Athletic Training
Professional horse racing jockeys participate in a high-risk sport, however there is limited research and policies regarding welfare and safety. Despite the high incidence and risk of concussions, there are not standardized protocols for returning these unique athletes to participation following concussion. A return-to-ride concussion protocol for thoroughbred horse racing athletes must take into account the unique considerations and practices of the sport. Current concussion management strategies suggest removal from riding and activity when a concussion is suspected. This is followed by further evaluation for diagnosis, a period of both cognitive and physical rest before a gradual return-to-activity prior to …
The Need For Diversity, Equity, Inclusion, And Social Justice In The Southwest Athletic Trainers’ Association, Meredith Decker, Shaketha Pierce
The Need For Diversity, Equity, Inclusion, And Social Justice In The Southwest Athletic Trainers’ Association, Meredith Decker, Shaketha Pierce
Clinical Practice in Athletic Training
No abstract provided.
Data Management Report January 2021, Tennessee. Department Of Intellectual And Developmental Disabilities
Data Management Report January 2021, Tennessee. Department Of Intellectual And Developmental Disabilities
Compliance & System Data/Reports
This monthly report provides data on various aspects of the department's activities and programs.
Forage Yield And Quality Of Hungarian Vetch Mixture With Oat Varieties Under Rainfedconditions, Hakan Kir
Forage Yield And Quality Of Hungarian Vetch Mixture With Oat Varieties Under Rainfedconditions, Hakan Kir
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to determine the appropriate mixture rates of Hungarian vetch and oat varieties in Kırşehir province of Turkey for two years 2017-2019. In this study, the yield and quality characteristics of single and mixed cultivations of three oat (Avena sativa L.) varieties and Hungarian vetch (Vicia pannoica Crantz) were determined. Yield characteristics such as green forage and dry matter, crude protein and digestible dry matter yields and quality characteristics such as crude protein ratio, neutral detergent fiber, acid detergent fiber, digestible dry matter, total digestible nutrient, dry matter intake and relative feed value were examined in the …
Novel Heat Index Models For Subtropical Region Based On Daily Milk Production Incrossbred Holstein Cows, Neeraj Kashyap, Atish Kumar Chakravarty, Bharti Deshmukh
Novel Heat Index Models For Subtropical Region Based On Daily Milk Production Incrossbred Holstein Cows, Neeraj Kashyap, Atish Kumar Chakravarty, Bharti Deshmukh
Turkish Journal of Veterinary & Animal Sciences
The quantification of the effect of heat stress imposed due to higher rate of heat gain on animal production is a prerequisite while estimating effects of heat stress. Temperature humidity index (THI) models developed empirically using meteorological parameters have been utilized as an indicator of heat stress. This study attempted to develop a heat index model with respect to productivity of the crossbred Holstein cows. More than 1.23 million daily milk yield records of 1860 crossbred cattle spread over a duration of 30 years were utilized. Statistically significant (p < 0.0001) partial regression coefficients were estimated as 0.0748 ± 0.0009 for dry bulb temperature (T$_{db}$) and -0.2228 ± 0.0011 for wet bulb temperature in model 1, -0.0182 ± 0.0005 T$_{db}$ and -0.1205 ± 0.0006 for vapour pressure in model 2, -0.0150 ± 0.0006 for Tdb and -0.1151 ± 0.0006 for dew point temperature in model 3 while as -0.1283 ± 0.0004 for T$_{db}$ and -0.0394 ± 0.0002 for relative humidity in model 4. The ratio of the partial regression coefficients of meteorological parameters (ß2/ß1) was -2.9791 in model 1, 6.8739 in model 2, 7.6731 in model 3 and 0.3073 in model 4. The developed THI models are based on the effect of meteorological parameters on daily productivity of the dairy animals, so the weightages to meteorological parameters were contrastingly different than the reported THI models. These models may successfully be used to evaluate the impact of heat stress on crossbred Holstein cows with respect to milk productivity and many other traits.