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2020

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Articles 1231 - 1260 of 1315

Full-Text Articles in Animal Sciences

Growth, Fattening Performance, And Carcass Characteristics Of Saanen, Turkish Hair ×Saanen, And Honamlı × Saanen Crossbred Kids, Aykut Asim Akbaş, Özkan Elmaz, Mehmet Sari, Hakan Üstüner, Şükran Kuleaşan, Mustafa Saatci Jan 2020

Growth, Fattening Performance, And Carcass Characteristics Of Saanen, Turkish Hair ×Saanen, And Honamlı × Saanen Crossbred Kids, Aykut Asim Akbaş, Özkan Elmaz, Mehmet Sari, Hakan Üstüner, Şükran Kuleaşan, Mustafa Saatci

Turkish Journal of Veterinary & Animal Sciences

The study was carried out to investigate the possibilities of obtaining slaughtered kids using indigenous breeds in Saanen flocks, which does not require breeding. The birth weights were 3.22 kg, 3.05 kg, and 3.18 kg for the Saanen, Turkish Hair × Saanen (F$_{1}$), and Honamlı × Saanen (F$_{1}$) crossbred kids, respectively. The mean live weight values of the same genotypes at the end of fattening (146th day) were determined as 25.96 kg, 27.11 kg, and 29.57 kg for the male kids, respectively. The cold carcass weights and dressing percentage (%) of the same genotypes were determined to be 10.95 kg, …

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Prevalence Of Ectoparasites On A Stray Cat Population From "Town Of Knowledge" Kotasamarahan, Sarawak, Malaysian Borneo, Naim Che Kamaruddin, Madinah Adrus, Wan Nurainie Wan Ismail Jan 2020

Prevalence Of Ectoparasites On A Stray Cat Population From "Town Of Knowledge" Kotasamarahan, Sarawak, Malaysian Borneo, Naim Che Kamaruddin, Madinah Adrus, Wan Nurainie Wan Ismail

Turkish Journal of Veterinary & Animal Sciences

Stray cats survive on their own and scavenge the surrounding areas for food to survive. Their exploitation to investigate the prevalence of ectoparasites can be of great medical importance for humans as they harbour a variety of zoonotic pathogens. Therefore, a survey of ectoparasites on stray cats was carried out from November 2017 to March 2018 around the Town of Knowledge to determine the prevalence of ectoparasites in stray cats and their potential to threaten the public health by infesting stray cats around Kota Samarahan, Sarawak, Malaysian Borneo. A total of 150 individuals of stray cats have been examined for …

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Chemical Compounds And Gas Production Kinetics Of Annual Ryegrass Hay In Distinctnitrogen Levels And Cutting Heights, Juliana Reolon Pereira, Marcela Abbado Neres, Itacir Eloi Sandini, Ana Carolina Fluck, Olmar Antônio Denardin Costa, Laércio Ricardo Sartor Jan 2020

Chemical Compounds And Gas Production Kinetics Of Annual Ryegrass Hay In Distinctnitrogen Levels And Cutting Heights, Juliana Reolon Pereira, Marcela Abbado Neres, Itacir Eloi Sandini, Ana Carolina Fluck, Olmar Antônio Denardin Costa, Laércio Ricardo Sartor

Turkish Journal of Veterinary & Animal Sciences

The aim of our work was to evaluate the chemical composition and cumulative gas production profiles of annual ryegrass hay through in vitro incubations for two cutting heights and different nitrogen fertilization doses. The experimental design was randomized blocks with split-plots. The nitrogen doses (0, 75, 150, and 225 kg N ha$^{-1}$) were distributed in the main plot and the subplots. To make the hay, the annual ryegrass was cut at heights of 5 and 10 cm from the ground, with three replications each. In the experimental area, corn was cropped in the summer and annual ryegrass pasture in the …

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Retrospective Evaluation Of Factors Affecting Superovulatory Response In Embryoproduction In Simmental Cattle, Hüseyi̇n Erdem, Hasan Alkan, Tahi̇r Karaşahi̇n, Şükrü Dursun, Fatma Satilmiş, Mehmet Güler Jan 2020

Retrospective Evaluation Of Factors Affecting Superovulatory Response In Embryoproduction In Simmental Cattle, Hüseyi̇n Erdem, Hasan Alkan, Tahi̇r Karaşahi̇n, Şükrü Dursun, Fatma Satilmiş, Mehmet Güler

Turkish Journal of Veterinary & Animal Sciences

In the present study, it was aimed to investigate the effect of lactation status, days in milk (DIM), follicle stimulating hormone (FSH) dose, and repeated superstimulations on superovulation response and embryo yield in Simmental cattle. In the present study, 193 Simmental breed cattle (lactating, nonlactating, and heifer) were used as donors, of which 149 were superovulated only once and the other 44 were superovulated for 3 times. Progesterone-based estrus synchronization protocol was applied to the donors. Starting from day 7, FSH was given intramuscularly to donors in decreasing doses twice a day for 4 days. The donors were injected with …

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The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z Jan 2020

The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the effects of season and sex on the production efficiency of commercial turkey farms in the Aegean Region. The data of 1161 production periods (570 male and 591 female) on 139 turkey farms between 2008 and 2017 were analysed. Daily feed consumption, feed conservation ratio (FCR), average daily gain (ADG), performance index, and carcass weight (P < 0.001) were higher in males than females. While males and females had a similar mortality rate in the first week (P > 0.05), the mortality rate in the later stages was higher in males (P < 0.001). The mortality rate in the initial period was highest in production periods that began in winter and lowest in those that began in summer (P < 0.001). The total mortality rate was higher in the autumn group than in the spring and summer groups (P < 0.001). Rearing season × sex interaction had a significant influence on the performance characteristics investigated in the study, except for mortality rates and survival. In males, FCR was lower in the autumn and winter groups than that of the spring and summer groups (P < 0.05). The highest ADG values were observed in the summer group for males and in the winter group for females. The best performance index was in the summer group in males, and the lowest performance index was observed in the autumn group for both males and females. In conclusion, environmental arrangements are needed in order to reduce the mortality rate and improve performance in production periods that began in autumn and winter.

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Oxidative Stress In Calves With Enzootic Pneumonia, Mustafa Özbek, Cumali̇ Özkan Jan 2020

Oxidative Stress In Calves With Enzootic Pneumonia, Mustafa Özbek, Cumali̇ Özkan

Turkish Journal of Veterinary & Animal Sciences

This study was performed to evaluate the oxidative stress in calves with enzootic pneumonia. Ninety calves that were 2?6 months old were used in this study. Ten of these calves were healthy and used as the control group, while 80 were diagnosed with enzootic pneumonia according to the clinical examinations. The biochemical results showed that total oxidant status (TOS), nitric oxide (NO), malondialdehyde (MDA), and sialic acid (SA) levels were higher in calves with enzootic pneumonia than in the control group. While there was a statistically significant increase in TOS, MDA, and SA concentrations, there was not any statistically significant …

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How Consumers' Consciousness And Perception Levels Affect Purchase Intention Of Organicchicken Meat In Turkey, Bi̇lge Acar Bolat, Ferhan Kaygisiz, Di̇ren Bulut Jan 2020

How Consumers' Consciousness And Perception Levels Affect Purchase Intention Of Organicchicken Meat In Turkey, Bi̇lge Acar Bolat, Ferhan Kaygisiz, Di̇ren Bulut

Turkish Journal of Veterinary & Animal Sciences

The main purpose of this study was to analyze the impact of consumers' consciousness levels through their perception levels on purchase intention towards organic chicken meat. While consciousness levels of organic chicken meat were handled in terms of animal welfare awareness and health, perception levels were dealt with in terms of food safety, price, and benefit. Structural equation modeling was used to find out which factors have a significant effect on purchase intention. As a result of the analysis, it was found that consumers' animal welfare awareness had a positive effect on food safety perception and health consciousness had a …

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Selection Of Forage And Avoidance Of Predation Risk By Partially Migratory Mule Deer, Collin Jeffrey Peterson Jan 2020

Selection Of Forage And Avoidance Of Predation Risk By Partially Migratory Mule Deer, Collin Jeffrey Peterson

Graduate Student Theses, Dissertations, & Professional Papers

Migration by ungulates has traditionally been thought of as a strategy that increases access to forage quality or reduces exposure to risk of predation, but the benefits of migration may be waning globally. In partially migratory populations, the persistence of both migrant and resident strategies is an intriguing ecological phenomenon, because migrants and residents often face contrasting fitness consequences. Partial migration is common in mule deer (Odocoileus hemionus), a species that has experienced widespread declines across the western United States during recent decades. Mule deer seldom switch between migratory strategies throughout their lifetime, which may make them less resilient to …

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Apparent Survival Of Snowy Plovers Varies Across Years And Between Sexes In Coastal Northern California, Justin A. Windsor Jan 2020

Apparent Survival Of Snowy Plovers Varies Across Years And Between Sexes In Coastal Northern California, Justin A. Windsor

Cal Poly Humboldt theses and projects

Adult survival is one of the most influential vital rates affecting population growth of iteroparous organisms. Survival often varies annually due to environmental stochasticity. However, drastic variations in annual adult survival rates can have overwhelmingly negative impacts on population viability and growth. In many wild avian populations, adult survival varies between sexes and may owe to unequal risks associated with reproductive roles or predation; this is particularly true among shorebirds. I used mark-resight data from a 19-year study of Western Snowy Plovers (Charadrius nivosus nivosus) in coastal northern California to investigate sex-specific apparent survival of the adult population …

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Knemidokoptes Mites And Their Effects On The Gripping Position Of Steller’S Jay Feet, Wade M. Burris Jan 2020

Knemidokoptes Mites And Their Effects On The Gripping Position Of Steller’S Jay Feet, Wade M. Burris

Cal Poly Humboldt theses and projects

Steller’s jays (Cyanocitta stelleri) with swollen legs and feet resembling the signs of scaly leg have been commonly seen around Arcata, California, USA. These signs are thought to be caused by knemidokoptic mites, a group of parasites specialized at exploiting a range of avian hosts. I compared the gripping position in the feet of jays with variable signs of this condition as an index of their ability to perch, confirmed the presence of mites and identified them to the nearest species using genetic analysis, and compared the relatedness of the cytochrome oxidase subunit I (COI) gene between mites …

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The Effect Of Shade Tree Species On Bird Communities In Central Kenyan Coffee Farms, Deven Kammerichs-Berke Jan 2020

The Effect Of Shade Tree Species On Bird Communities In Central Kenyan Coffee Farms, Deven Kammerichs-Berke

Cal Poly Humboldt theses and projects

Shade coffee has been recognized as a well-studied example of a land-sharing management strategy that both creates habitat for tropical birds while also maintaining agricultural yield. Despite the general consensus that shade coffee is more “bird-friendly” than a sun coffee monoculture, little work has been done to investigate the effects of specific shade tree species on bird diversity and their capacity to help deliver ecosystem services. Previous studies in temperate regions have demonstrated that due to shared evolutionary histories, native plant species are better at promoting native arthropod numbers, which in turn support a greater number of birds. This study …

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Evaluation Of The Use Of Alternative Biomarkers As Indicators Of Post-Release Mortality In Blacktip Sharks (Carcharhinus Limbatus), Casey L. Zender Jan 2020

Evaluation Of The Use Of Alternative Biomarkers As Indicators Of Post-Release Mortality In Blacktip Sharks (Carcharhinus Limbatus), Casey L. Zender

UNF Graduate Theses and Dissertations

The release of sharks caught in recreational fisheries or as by-catch in non-target commercial fisheries is generally regarded as a sustainable fishing approach. However, post-release mortality can occur in these fish due to physiological damage sustained during capture. It is important to determine the amount of mortality specifically attributed to capture so losses can be accounted for in population management practices. Previous studies have used electronic tagging and/or measurement of secondary stress indicators in plasma (e.g., pH, levels of lactate, glucose, pCO2) to estimate rates of post-release mortality. These methods may not always be the best approaches, as …

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Implementing Welfare Science: Case Studies In Evidence-Based Zoo Management, Marisa Suzanne Spain Jan 2020

Implementing Welfare Science: Case Studies In Evidence-Based Zoo Management, Marisa Suzanne Spain

UNF Graduate Theses and Dissertations

Animal welfare science is a field that focuses on how we can improve the lives and well-being of animals in human care. Modern welfare science has moved away from simply preventing suffering and on to promoting positive welfare states, a concept that has been coined animal “wellness”. A process called evidence-based zoo management has been implemented in many zoos as a way to promote and ensure wellness. This is the idea that husbandry and housing standards should be evaluated and tested for their efficacy using data rather than relying on traditional best practices. In this manuscript we discuss an informal …

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Of Elephants And Men, Helen Kopnina Jan 2020

Of Elephants And Men, Helen Kopnina

Animal Sentience

Baker & Winkler’s target article is well-researched and thought-provoking, but I do have four points of contention: (1) The proposal to entrust elephants to traditional mahout culture has restricted elephants’ freedom of movement and reproduction and (ab)used them. (2) The concept of “indigenous” simultaneously reifies and denigrates the “noble savages”, privileging only human indigenous groups, ignoring nonhuman indigenes. (3) Most lifestyles have been globalized under consumer-economic and anthropocentric worldviews. (4) The fact that people (including mahouts) are part of nature does not mean they are benevolent, any more than cities, monocultures, or roads are.

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Rewilding Or Reviewing: Conservation And The Elephant-Based Tourism Industry, Ingrid Suter Jan 2020

Rewilding Or Reviewing: Conservation And The Elephant-Based Tourism Industry, Ingrid Suter

Animal Sentience

Baker & Winkler (2020) provide a detailed examination of elephants in captivity, from an historical perspective to modern-day concerns. Concerns include the poor level of mahout skills and subsequent captive elephant welfare issues in the Thai elephant tourism industry. Rewilding is proposed as a method of rehabilitation and a way to include mahouts in the conservation process. This commentary argues that the tourism industry is making positive changes and mahout skills can be utilised successfully without the arduous task of rewilding. Animal rights groups and the transfer of misinformation surrounding captive elephant welfare are also examined, as these typically fail …

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Ecological And Evolutionary Dynamics Of Elephant Rewilding, Lysanne Snijders Jan 2020

Ecological And Evolutionary Dynamics Of Elephant Rewilding, Lysanne Snijders

Animal Sentience

Baker & Winkler make a thought-provoking contribution to the discussion of what role captive animals could play in nature conservation and how we could get there through rewilding. There certainly is potential for captive Asian elephants, Elephas maximus, to become targets of conservation efforts, but there are also many questions: (1) How much do (behavioral) traits of captive-origin animals differ from their free conspecifics? (2) What predicts the likelihood and strength of social reintegration of captive animals into free populations? (3) How much of an Asian elephant’s functional role in the environment can captive animals still fulfill and how …

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Innovative, Yes: But Is It Rewilding?, Daniel T. Blumstein, Kate E. Lynch Jan 2020

Innovative, Yes: But Is It Rewilding?, Daniel T. Blumstein, Kate E. Lynch

Animal Sentience

Baker & Winkler’s extremely stimulating proposal clearly illustrates conflicting priorities in biodiversity conservation and management that are exacerbated when human cultural resources and animal welfare are a part of the solution. We suggest that the discussion can benefit from an even more explicit unpacking of the conflicting values associated with the proposal.

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Rethinking Rewilding Through Multispecies Justice, Danielle Celermajer Jan 2020

Rethinking Rewilding Through Multispecies Justice, Danielle Celermajer

Animal Sentience

Baker & Winkler’s argument that some humans, especially some Indigenous peoples, neither conceive of themselves as ontologically distinct from nature, nor do they organize their lives as such, is an important one. However, one needs to understand how colonialism and global capitalism have drawn Indigenous peoples and animals into new political economies. The new situation and the constrained opportunities available may have introduced a range of injustices or forms of violence that did not previously exist. This commentary proposes how a multispecies justice lens might assist in evaluating the most just arrangement for all parties, human and non-human.

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A “Halfway House” For Improving Captive Welfare, Phyllis C. Lee, W. Keith Lindsay Jan 2020

A “Halfway House” For Improving Captive Welfare, Phyllis C. Lee, W. Keith Lindsay

Animal Sentience

It is certainly time to aim for higher quality management strategies for Thailand’s captive elephants, and to engage with sustainable livelihoods for traditional mahouts. Baker & Winkler’s proposal to rewild Thai elephants by placing them under the guardianship of Karen mahouts is recognized as not “wild” since it remains a form of management requiring elephants to live under the control of human caregivers. We applaud the positive welfare aims of this proposal; however, we caution that few of the long-term consequences for elephants or habitats can be known, and further considerations of elephant population dynamics and forest ecosystems are required …

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Rewilding Elephants: A Solution Or A Potential Problem?, Sagarika Phalke Jan 2020

Rewilding Elephants: A Solution Or A Potential Problem?, Sagarika Phalke

Animal Sentience

Baker & Winkler (B&W) provide a comprehensive and systematic review of Thailand’s captive tourist elephants. They propose rewilding as a solution to improving the welfare of captive tourist elephants. They also advocate this method for restoring degraded forests, elephant conservation and preserving traditional elephant-keeping practices and knowledge. This commentary argues that rewilding might exacerbate negative human-elephant interactions and impede conservation efforts. While further research is required for rewilding to be considered a viable and practical solution, B&W’s focus on documenting traditional knowledge which can directly contribute to the welfare of captive elephants remains important.

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Challenging Our Conception Of Wildness, Elodie Massiot Jan 2020

Challenging Our Conception Of Wildness, Elodie Massiot

Animal Sentience

Baker & Winkler (2020) point out the entanglement among free-living elephants, captive elephants, and humans in the elephant tourism industry. Where all living beings – captive and free-living – are more or less affected by human presence or activity, the binary notion of wild and captive, and in situ and ex situ conservation, becomes inadequate. B&W challenge our concept of wildness – and hence of rewilding – and our level of intervention in this wildness of which we are a component.

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Rewilding And Mixed-Community Collaboration In Conservation, Liv Baker Jan 2020

Rewilding And Mixed-Community Collaboration In Conservation, Liv Baker

Animal Sentience

Rewilding is a psychological and sociocultural event for nonhuman animals that goes beyond the traditional framework of ecology. Elephants need to be seen as political agents in a collaboration. Our commentators shed light on the hierarchical assumptions and politics involved. Mixed-community collaboration can create dynamic and sustainable conservation interventions that are crucial to reconceptualizing the human-elephant relationship beyond the concept of labor. The profound effects of the Covid-19 pandemic have laid bare the fundamental vulnerabilities of the elephant tourism industry. Moreover, how well an elephant has been buffered by the fallout of the pandemic is dependent on the specific relations …

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Effects Of Single Bolus Injection Of Pimobendan On Cardiac Function, Hemodynamics, And Heart Rate Variability In Healthy Dogs, Poonavit Pichayapaiboon Jan 2020

Effects Of Single Bolus Injection Of Pimobendan On Cardiac Function, Hemodynamics, And Heart Rate Variability In Healthy Dogs, Poonavit Pichayapaiboon

Chulalongkorn University Theses and Dissertations (Chula ETD)

In veterinary medicine, pimobendan has been recommended for management of dogs with congestive heart failure for decades. Recently, an intravenous injectable solution of this drug has been launched. However, the effects of this preparation on electrocardiography, cardiac functions, hemodynamics, heart rate variability (HRV), and the pharmacokinetics (PK) in dogs are still limited. Therefore, the objective of this investigation is to investigate the hemodynamics, cardiac functions, electrocardiographic parameters, the PK profiles and its active metabolite, O-desmethyl pimobendan (ODMP), as well as its effect on HRV of a single bolus pimobendan in healthy dogs. Nine dogs were anesthetized and instrumented to obtained …

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Exploring Eight-Armed Intelligence Through Film, Tierney M. Thys Jan 2020

Exploring Eight-Armed Intelligence Through Film, Tierney M. Thys

Animal Sentience

Mather (2019) provides a rich overview of the elements underlying octopus cognition and behavioral flexibility. Recently, two remarkable natural history films, My Octopus Teacher and The Octopus in My House have explored intimate human-octopus relationships with a wild (Octopus vulgaris) and a captive octopus (Octopus cyanea) respectively. Both films show rare behaviors that offer observations to test new hypotheses as well as a novel perspective on our own human relationships and place within the natural world. An interview with filmmaker Craig Foster from My Octopus Teacher reveals the profound and transformative power of forming a trusting …

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Comparative Cognition And Nonhuman Individuality, Catia Correia Caeiro Jan 2020

Comparative Cognition And Nonhuman Individuality, Catia Correia Caeiro

Animal Sentience

Commentators Washington (2019) and Tiffin (2019) point out that the individual vs. collective dichotomy is much more complex than what is considered in the target article. This commentary will focus on why individuals are more important than collectives. Species differences in cognition and emotional processes and individuals’ feelings and experiences need to be taken into account.

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Conventional Science Will Not Do Justice To Nonhuman Interests: A Fresh Approach Is Required, Becca Franks, Christine Webb, Monica Gagliano, Barbara Smuts Jan 2020

Conventional Science Will Not Do Justice To Nonhuman Interests: A Fresh Approach Is Required, Becca Franks, Christine Webb, Monica Gagliano, Barbara Smuts

Animal Sentience

Treves et al. (2019) make a convincing case that conservation efforts need to go beyond an anthropocentric worldview. Implementing that vision, however, will require human advocates to represent nonhuman interests. Where will the knowledge of those interests come from? How can humans know what is in the best interest of another animal, a plant, or an ecosystem? We discuss how the values embedded in current scientific practices may be ill-suited to representing nonhuman interests and we offer some ideas for correcting these shortcomings.

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Preserving Nature For The Benefit Of All Sentient Individuals, Eze Paez Jan 2020

Preserving Nature For The Benefit Of All Sentient Individuals, Eze Paez

Animal Sentience

I agree with Treves et al.’s proposal for a preservation ethics based on the principle that nonhuman well-being is a matter of justice and compassion. In this commentary, I advance two objections. First, only sentient beings, rather than all life, belong in the moral community. Second, given that nature is probably harmful overall for sentient individuals, preserving it for the benefit of future human and nonhuman generations requires us to modify it as far as practicable.

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The Wholeness Of Nature, Marthe Kiley-Worthington Jan 2020

The Wholeness Of Nature, Marthe Kiley-Worthington

Animal Sentience

The target article outlines various positions on conservation and preservation but ignores practical considerations of management since there is no wild habitat left. Population controls, either human or nonhuman mammals, are not discussed. The suggestions for legal changes are vague and will require much more thinking about how to integrate animal welfare with wildlife conservation concerns. “Freedoms” as outlined in the human bill of rights might help with decision making for improving animal welfare. Other commentators have made anthropocentric judgements concerning animal welfare, ignoring the importance of developing other ways of seeing and understanding the “multiplicity within unity,” combining empirical …

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Conflicts And Triage, Kate E. Lynch, Daniel T. Blumstein Jan 2020

Conflicts And Triage, Kate E. Lynch, Daniel T. Blumstein

Animal Sentience

To represent diverse interests successfully, a strategy for dealing with conflicts is needed. We discuss an approach to maximizing the interests of the greatest number of individuals, present and future.

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How To Engage Public Support To Protect Overlooked Species, Scarlett R. Howard, Adrian G. Dyer Jan 2020

How To Engage Public Support To Protect Overlooked Species, Scarlett R. Howard, Adrian G. Dyer

Animal Sentience

Treves et al. (2019) propose a non-anthropocentric approach to conservation biology for the ‘just preservation’ of non-humans. Some of our current ways of ranking conservation efforts based on benefits to humans are indeed critically flawed, but we doubt that a completely non-anthropocentric approach is possible at this time. We propose a way to generate public support for those non-human species that may otherwise be overlooked in policy-making and conservation efforts.

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