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Full-Text Articles in Life Sciences

Aversion Properties Of Retrorsine, Retrorsine Nitrogen Oxide And Frosted Senecio Latifolius, Leendert D. Snyman Dec 2023

Aversion Properties Of Retrorsine, Retrorsine Nitrogen Oxide And Frosted Senecio Latifolius, Leendert D. Snyman

Poisonous Plant Research (PPR)

Two pilot trials, investigating the aversive properties of retrorsine and retrorsine nitrogen oxide and that of frosted Senecio latifolius, were executed. Retrorsine and retrorsine-NO (the toxic principles of Senecio retrorsus), unlke sceleratine-NO (the toxic principle of another hepatotoxic pyrrolizidine alkaloid containing plant, namely S. latifolius), were not capable of establishing aversion when given to a sheep. Frosted S. latifolius given to a sheep also did not induce aversion. However, a sheep averted to S. latifolius (non-frosted) refused eating frosted S. latifolius.


Sceleratin Nitrogen Oxide As Aversive Agent In Conditioning Livestock To Avoid Senecio Latifolius, Leendert D. Snyman Dec 2023

Sceleratin Nitrogen Oxide As Aversive Agent In Conditioning Livestock To Avoid Senecio Latifolius, Leendert D. Snyman

Poisonous Plant Research (PPR)

Sceleratine nitrogen oxide, when administered together with a dichloromethane extract of Senecio latifolius, successfully conditioned cattle and sheep to avoid milled freeze dried S. latifolius mixed with maize meal. This treatment was effectively applied in conditioning steers to refuse eating S. latifolius grown in pots.


Isolation Of The Toxic Principle Of Senecio Latifolius By Means Of The Sensory Receptors Of Sheep, Leendert D. Snyman Dec 2023

Isolation Of The Toxic Principle Of Senecio Latifolius By Means Of The Sensory Receptors Of Sheep, Leendert D. Snyman

Poisonous Plant Research (PPR)

The aversive substance of Senecio latifolius was isolated by means of the sensory receptors of sheep averted to S. latifolius. Chemical fractions refused due to the presence of the aversive substance sensed by the sheep were fractionated until a purified substance had been isolated. Nuclear magnetic resonance (NMR) analysis of the purified substance showed it to be sceleratine nitrogen oxide, the toxic principle of S. latifolius.


Parents’ Perceptions Of The Philly Goat Project’S All Abilities Ramble: A Qualitative Study Of Animal-Assisted Intervention For Intellectual And Developmental Disorders, Patricia Flaherty-Fischette, Jenée Lee, Yvonne D'Uva-Howard, Elizabeth P. Cramer, Karen Krivit, Sarah Meehan Jul 2023

Parents’ Perceptions Of The Philly Goat Project’S All Abilities Ramble: A Qualitative Study Of Animal-Assisted Intervention For Intellectual And Developmental Disorders, Patricia Flaherty-Fischette, Jenée Lee, Yvonne D'Uva-Howard, Elizabeth P. Cramer, Karen Krivit, Sarah Meehan

Developmental Disabilities Network Journal

Individuals with intellectual and developmental disabilities (IDD) are a growing population. Considering the wide diversity in IDD and the financial burden of traditional treatment modalities, Animal-Assisted Interventions (AAI) has emerged as an innovative and non-traditional treatment for individuals with a range of disabilities, including individuals with IDD. To the authors’ knowledge, the present study was one of the first to explore a goat-assisted therapy experience for children with IDD. This study explored the experiences of 23 children with the All Abilities RAMble – a goat-assisted therapeutic activity offered by the Philly Goat Project (PGP). Key themes in our study included …


Assessing The Needs Of Utah Dairy Farmers To Inform Extension Programming, Bruce F. Richards, Lendel Narine, Justin Clawson, Kalen Taylor, Jacob Hadfield, Jody Gale Jul 2023

Assessing The Needs Of Utah Dairy Farmers To Inform Extension Programming, Bruce F. Richards, Lendel Narine, Justin Clawson, Kalen Taylor, Jacob Hadfield, Jody Gale

Outcomes and Impact Quarterly

A needs assessment was conducted by the Utah State University Dairy Extension Team to identify the most urgent issues faced by Utah dairy farmers. The assessment found that the top five priority needs were implementing new technology, improving public perception of water use, managing risk, succession planning, and reducing feed costs. The results will guide dairy Extension programming in Utah. Several workshops and events have already been planned to address these needs. Overall, the assessment will help USU Extension provide research-based educational programs to meet the needs of the dairy industry in Utah.


An Automatic System To Evaluate Bait Station Visitation By Brown Treesnakes And Mongooses, Robert T. Sugihara, William C. Pitt, Are R. Berentsen, Francis L. Benevides Jr. Jan 2023

An Automatic System To Evaluate Bait Station Visitation By Brown Treesnakes And Mongooses, Robert T. Sugihara, William C. Pitt, Are R. Berentsen, Francis L. Benevides Jr.

Human–Wildlife Interactions

Understanding the temporal, spatial, and behavioral patterns of the free-ranging target species in response to candidate baits and baiting strategies is important to ensure control success. This information can also assist in the development and deployment of feeding stations and can exclude non-target species while constituting effective bait delivery and control strategies for certain invasive animals, especially at environmentally sensitive sites. We used passive integrated transponder (PIT) tags in conjunction with very-high frequency radio-telemetry to remotely record bait station visitations and evaluate bait attractiveness in separate field research studies of brown treesnakes (Boiga irregularis) on Andersen Air Force …


Tradeoffs May Counteract Effects Of Telecommunication Towers On Osprey Nesting, Gage R. Barnes, Kate G. Slankard, John B. Hewlett, Andrea K. Darracq Jan 2023

Tradeoffs May Counteract Effects Of Telecommunication Towers On Osprey Nesting, Gage R. Barnes, Kate G. Slankard, John B. Hewlett, Andrea K. Darracq

Human–Wildlife Interactions

The number of telecommunication towers (TCTs) throughout the United States has and continues to increase exponentially. Increased TCT placement has been implicated in local population increases in platform nesting birds such as ospreys (Pandion haliaetus). However, osprey use of artificial structures can cause conflicts with humans because of economic costs and risks to human safety. Managers require better information regarding the effect of artificial nesting surfaces, such as TCTS, on osprey reproduction to make informed decisions regarding species conservation and to mitigate potential conflicts. The objective of our study was to evaluate the influence of TCTs on osprey …


Livestock Depredation By Leopards, Associated Economic Losses, And Financial Compensation To Communities In Chhota Udepur District Of Central Gujarat, India, Shalu Mesaria, Pratik Desai, Shruti Patel, Dhaval Gadhavi, Anthony J. Giordano, Nishith Dharaiya Jan 2023

Livestock Depredation By Leopards, Associated Economic Losses, And Financial Compensation To Communities In Chhota Udepur District Of Central Gujarat, India, Shalu Mesaria, Pratik Desai, Shruti Patel, Dhaval Gadhavi, Anthony J. Giordano, Nishith Dharaiya

Human–Wildlife Interactions

Livestock depredation by large carnivores has been documented across the entire Indian subcontinent. The failure of managers to mitigate livestock losses in landscapes dependent on subsistence agriculture poses a threat to the conservation of carnivores. For much of Gujarat, a western Indian state characterized by extensive semi-arid habitats, the Indian leopard (Panthera pardus fusca) is considered an apex predator. Increasing regional leopard populations in response to protection efforts has led to more attacks on humans, along with an increase in rates of livestock depredation. In many cases, the regional forest department financially compensates livestock owners for depredation caused …


A Critical Look At Wild Pig Elimination: Myths And Facts, Kim M. Pepin, Travis L. Guerrant, Jeremiah L. Psiropoulos, Jeanine T. Neskey, John M. Tomeček, Michael J. Bodenchuk, Janean L. Romines Jan 2023

A Critical Look At Wild Pig Elimination: Myths And Facts, Kim M. Pepin, Travis L. Guerrant, Jeremiah L. Psiropoulos, Jeanine T. Neskey, John M. Tomeček, Michael J. Bodenchuk, Janean L. Romines

Human–Wildlife Interactions

Wild pigs (Sus scrofa) are abundant and widely distributed in the United States. They damage crops and pastures, predate livestock and sensitive species, impact ecosystem functions, and damage personal property. To address these issues, some states in the United States are seeking complete elimination. A frequently asked question by stakeholders is: “What portion of the population needs to be removed annually to reach elimination?” The number 70% is widely touted as the answer. There is little scientific evidence to support that this percent annual removal would be needed to achieve elimination, yet 70% has now become a standard …


The Ground Baiting Component Of The Gough Island House Mouse Eradication Attempt In 2021, Araceli Samaniego, Andrew Callender, Pete Mcclelland Jan 2023

The Ground Baiting Component Of The Gough Island House Mouse Eradication Attempt In 2021, Araceli Samaniego, Andrew Callender, Pete Mcclelland

Human–Wildlife Interactions

House mice (Mus musculus; mice) are among the most widespread invasive species. On Gough Island (6,500 ha), mice preying on at least 19 bird species triggered a mouse eradication attempt. Gough Island is a volcanic island in the South Atlantic Ocean and part of Tristan da Cunha, a UK Overseas Territory. From June to August 2021, an expert team applied an anticoagulant rodenticide (active ingredient brodifacoum at a concentration 20 ppm) island-wide, predominantly via aerial broadcast using helicopters, as the island is mainly uninhabited. However, hand-baiting was also required because of the presence of a staffed meteorological station. …


The Path To U.S. National Registration Of A Toxic Bait For The Control Of The Small Indian Mongoose, Carmen C. Antaky, Steven C. Hess, Emily W. Ruell, Israel L. Leinbach, Shane R. Siers, Robert T. Sugihara Jan 2023

The Path To U.S. National Registration Of A Toxic Bait For The Control Of The Small Indian Mongoose, Carmen C. Antaky, Steven C. Hess, Emily W. Ruell, Israel L. Leinbach, Shane R. Siers, Robert T. Sugihara

Human–Wildlife Interactions

The small Indian mongoose (Urva auropunctata [syn. Herpestes auropunctatus]; mongoose) is a highly invasive species in its introduced range that negatively impacts ecosystems. Mongooses depredate native species, serve as a vector of disease posing a risk to human health, and cause sanitation issues in food processing facilities and public areas. Introduced for biocontrol in the late 1800s in Hawaiʻi and the Caribbean, mongooses currently have well-established populations across multiple islands in both island archipelagos and have invaded numerous other locations throughout the world. The concern of accidental introduction to mongoose-free islands, the difficulty in species detection, and the …