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Articles 11221 - 11250 of 36496

Full-Text Articles in Animal Sciences

Degrees Of Sentience?, Jonathan Birch Jan 2018

Degrees Of Sentience?, Jonathan Birch

Animal Sentience

I focus on the possibility of sentience in zebrafish larvae. The evidence here prompts two intuitive reactions that are difficult to reconcile: the reaction that larvae, if sentient, should be protected in some way, and the reaction that larvae, if capable of nociception, should be used as replacements for adults. Both reactions are reasonable, but they can be reconciled only by constructing a framework for assigning degrees of protection in proportion to degrees of sentience.

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The Human Nervous System Is Not The Gold Standard For Pain, Riccardo Manzotti Jan 2018

The Human Nervous System Is Not The Gold Standard For Pain, Riccardo Manzotti

Animal Sentience

The basis of pain could be the causal nexus between one’s phylogenetic/ontogenetic history and one’s behavior. It might turn out that the neural implementation is immaterial to the instantiation of pain. Widely different neural structures may token the same pain-type, and nearly identical neural structures may token different types.

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Time To (Finally) Acknowledge That Fish Have Emotionality And Pain, Konstantin A. Demin, Anton M. Lakstygal, Allan V. Kalueff Jan 2018

Time To (Finally) Acknowledge That Fish Have Emotionality And Pain, Konstantin A. Demin, Anton M. Lakstygal, Allan V. Kalueff

Animal Sentience

The increasing work using fish as a model organism calls for a better understanding of their sentience. While growing evidence suggests that pain and emotionality exist in zebrafish, many deniers continue to ignore the evidence. Here we revisit the main conceptual breakthroughs in the field that argue clearly for pain and emotionality. We call for an end to denial and a focus on studying the mechanisms of fish pain and emotionality, and their translational relevance to human conditions.

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Defining Pain And Painful Sentience In Animals, Edgar T. Walters Jan 2018

Defining Pain And Painful Sentience In Animals, Edgar T. Walters

Animal Sentience

Sentience is essential to most definitions of pain, including a detailed definition invoked by Sneddon et al. to argue that adult and perhaps larval fish feel pain. Because proving painful sentience in non-human animals is not feasible, multiple lines of indirect evidence are needed to implicate pain. This commentary examines the list of 17 criteria used by Sneddon et al. to conclude that fish have conscious pain. The criteria include tests of nociceptive, motivational, and cognitive properties useful for revealing pain-like states that can be understood biologically and be related evolutionarily to human pain. However, additional research is needed to …

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Nocifensive Behavior As Evidence For Sentient Pain In Fish, Marissol Leite Da Silva, Caio Maximino, Diógenes Henrique Siqueira-Silva Jan 2018

Nocifensive Behavior As Evidence For Sentient Pain In Fish, Marissol Leite Da Silva, Caio Maximino, Diógenes Henrique Siqueira-Silva

Animal Sentience

Fish nocifensive behavior can be studied and understood similarly to the way pain is studied and understood in more advanced vertebrates. Nocifensive behavior is a behavioral and physiological response to a noxious stimulus that leads to the fish avoiding it in the future. This behavioral flexibility is an important criterion for inferring pain sentience in fish. Modulation of the nocifensive behavior by anxiety, fear, or stress has already been demonstrated in zebrafish. The affective experiences of fish will not be identical to those of human beings, clearly. Empirical research will need to ascertain how similar they are.

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Fish Are Smart And Feel Pain: What About Joy?, Becca Franks, Jeff Sebo, Alexandra Horowitz Jan 2018

Fish Are Smart And Feel Pain: What About Joy?, Becca Franks, Jeff Sebo, Alexandra Horowitz

Animal Sentience

Sneddon et al. rightly point out that the evidence of fish pain is now so strong and comprehensive that arguments against it have become increasingly difficult to defend in balanced academic discourse. But sentience involves more than just pain. Recent research indicates that fish have an impressive range of cognitive capacities, including the capacity for pleasure, in the form of play and other behaviors likely to involve positively valenced experience. Having made the case for pain, research can now focus on other aspects of fish sentience. Doing so will not only provide a more complete picture of the mental lives …

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Ample Evidence For Fish Sentience And Pain, Lynne U. Sneddon, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Donald M. Broom, Culum Brown Jan 2018

Ample Evidence For Fish Sentience And Pain, Lynne U. Sneddon, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Donald M. Broom, Culum Brown

Animal Sentience

The majority of commentaries are supportive of our position on the scepticism that muddies the waters surrounding fish pain and sentience. There is substantial empirical evidence for pain in fish. Animals’ experience of pain cannot be compared to artificial intelligence (AI) because AI can only mimic responses to nociceptive input on the basis of human observations and programming. Accepting that fish are sentient would not be detrimental to the industries reliant on fish. A more proactive discussion between scientists and stakeholders is needed to improve fish welfare for the benefit of all.

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ผลของเสียงรบกวนต่อการปรากฏของนกในสวนสาธารณะ กรุงเทพมหานคร, ปาณิศา เอี่ยมวิจารณ์ Jan 2018

ผลของเสียงรบกวนต่อการปรากฏของนกในสวนสาธารณะ กรุงเทพมหานคร, ปาณิศา เอี่ยมวิจารณ์

Chulalongkorn University Theses and Dissertations (Chula ETD)

ระบบนิเวศเมืองได้รับผลกระทบของการขยายตัวของเศรษฐกิจจึงส่งผลให้เกิดมลภาวะต่าง ๆ เพิ่มมากขึ้น เช่น มลภาวะทางเสียงซึ่งส่งผลต่อนกที่อาศัยอยู่ในเมืองที่ต้องใช้เสียงเพื่อการสื่อสาร งานวิจัยนี้จึงศึกษาผลกระทบของเสียงรบกวนต่อการปรากฏของนกภายในสวนสาธารณะทั้ง 12 แห่งในกรุงเทพมหานคร โดยทำการสำรวจการปรากฏของนก และปัจจัยทางกายภาพและชีวภาพของสวนสาธารณะทั้งหมด 10 ครั้งระหว่างเดือน มีนาคม-กันยายน 2561 โดยพบว่าระดับความดันเสียงของสวนสาธารณะอยู่ในช่วงระหว่าง 45-70 dB(A) ซึ่งเสียงการจราจรเป็นแหล่งกำเนิดเสียงหลัก พบนกทั้งหมด 25 ชนิดซึ่งพบนก 16-22 ชนิดในแต่ละสวน จำนวนชนิดนกลดลงเมื่อระดับความดันเสียงเพิ่มขึ้นแต่การปรากฏของนกเฉลี่ยไม่มีความสัมพันธ์กับระดับความดันเสียง เมื่อพิจารณารายชนิด การปรากฏของนกต่างชนิดมีความสัมพันธ์เชิงลบ หรือบวกกับระดับความดันเสียง ซึ่งแสดงถึงการตอบสนองที่แตกต่างกันระหว่างชนิดนกต่อเสียงรบกวนในสวนสาธารณะ นก 10 ชนิด เช่น นกกางเขนบ้าน Copsychus saularis นกขมิ้นน้อยธรรมดา Aegithinidae tiphia และนกปรอดสวน Pycnonotus blanfordi มีการปรากฏของนกลดลงเมื่อระดับความดันเสียงเพิ่มขึ้น และการปรากฏของนกเอี้ยงสาริกา Acridotheres tristis และนกเอี้ยงหงอน Acridotheres grandis เพิ่มขึ้นเมื่อระดับความดันเสียงเพิ่ม ปัจจัยบางประการของสวนสาธารณะ เช่น ขนาดของสวนสาธารณะ พื้นที่แหล่งน้ำภายในสวนสาธารณะ และความหนาแน่นของไม้ยืนต้น เป็นปัจจัยที่ส่งผลให้การปรากฏของนกเพิ่มขึ้น ดังนั้น ข้อมูลจากงานวิจัยนี้สามารถใช้ในการออกแบบ และจัดการสวนสาธารณะที่เอื้อต่อการปรากฏของนกนั้นจะสามารถช่วยในการอนุรักษ์นกภายในระบบนิเวศเมืองได้

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Canine Emotions: Guidelines For Research, Miiamaaria V. Kujala Jan 2018

Canine Emotions: Guidelines For Research, Miiamaaria V. Kujala

Animal Sentience

In the target article, I called for a discussion on the nature and extent of dogs’ emotions. The commentators generally agreed on the existence of dog emotions, but the diversity and quality of dog emotions, as well as the influence of human social cognition on perceiving dog emotions, raised more debate. To respond to the stimulating commentaries, I touch briefly on the philosophy of (canine) mind and discuss further the benefits of comparing cognition across species, secondary emotions, and the shaping of canine emotions by evolution, breeding and experience. I conclude with suggestions for future research guidelines on studies of …

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Fish Consciousness, David Gamez Jan 2018

Fish Consciousness, David Gamez

Animal Sentience

Woodruff makes two arguments to support his claim that ray-finned fish are conscious: (1) Fish neuroanatomy has similarities with the structures in the human brain that support consciousness. (2) The complexity and flexibility of fish behaviour suggest that they are conscious. This commentary will argue that neither the neuroanatomical nor the behavioural argument can provide conclusive evidence for consciousness in fish. We should suspend judgement until we have discovered mathematical theories of consciousness that can reliably map between states of consciousness and states of the physical world.

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อนุกรมวิธานและสัณฐานวิทยาของผึ้งปั้นดินสกุลย่อย Callomegachile Michener, 1962 ในประเทศไทย, นนธวัช ฉัตรธนบูรณ์ Jan 2018

อนุกรมวิธานและสัณฐานวิทยาของผึ้งปั้นดินสกุลย่อย Callomegachile Michener, 1962 ในประเทศไทย, นนธวัช ฉัตรธนบูรณ์

Chulalongkorn University Theses and Dissertations (Chula ETD)

ผึ้งในสกุลย่อย Callomegachile Michener, 1962 (Family: Megachilidae) มีลักษณะเด่นคือ ลวดลายบน mesoscutum เป็นหยักแบบร่างแห (striate) มีการดำรงชีวิตแบบโดดเดี่ยวและมีการนำวัสดุหลายประเภทมาใช้ในการสร้างรัง เช่น ดิน กรวด และ ยางไม้ เป็นต้น นอกจากนี้ยังเป็นหนึ่งในผึ้งในสกุล Chalicodoma Lepeletier, 1841 ที่มีจำนวนชนิดมากที่สุดในแถบเอเชียตะวันออกเฉียงใต้แต่กลับมีข้อมูลการการศึกษาน้อยและไม่เป็นที่รู้จัก ในการศึกษาครั้งนี้ได้ทำการศึกษาอนุกรมวิธานผึ้งสกุลย่อย Callomegachile จากตัวอย่างผึ้งที่ได้ทำการเก็บรวบรวมในภาคสนามจากทั่วประเทศไทย รวมทั้งตัวอย่างที่ถูกเก็บรักษาไว้ที่พิพิธภัณฑสถานธรรมชาติวิทยาแห่งจุฬาลงกรณ์มหาวิทยาลัย, พิพิธภัณฑ์แมลงสุธรรมอารีกุลแห่งมหาวิทยาลัยเกษตรศาสตร์ วิทยาเขตกำแพงแสน, กรมอุทยานแห่งชาติ สัตว์ป่า และ พันธุ์พืช, ภาควิชากีฏวิทยาและโรคพืช คณะเกษตรศาสตร์ มหาวิทยาลัยเชียงใหม่ และ type specimens จาก The Natural History Museum, London, United Kingdom (NHM) รวมทั้งหมดจำนวน 314 ตัวอย่าง (♀ = 178, ♂ = 136) โดยทำการระบุชนิดของผึ้งสกุลย่อย Callomegachile ที่พบจำนวน 14 ชนิด เป็นชนิดที่เคยมีรายงานในประเทศไทยจำนวน 8 ชนิด ได้แก่ C. (Ca.) atratiforme (Meade-Waldo, 1914), C. (Ca.) disjuncta (Fabricius, 1781), C. (Ca.) facetula (Cockerell, 1918), C. (Ca.) fulvipennis (Smith, 1879), C. (Ca.) impressa (Friese, 1903), C. (Ca.) monticola (Smith, 1853), C. (Ca.) odontophorum Engel, …

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Why Do We Want To Think Humans Are Different?, Colin A. Chapman, Michael A. Huffman Jan 2018

Why Do We Want To Think Humans Are Different?, Colin A. Chapman, Michael A. Huffman

Animal Sentience

One harmful consequence of creating categories where one group is unique and superior to others is that it justifies committing negative, often atrocious, acts on the members of the inferior group. Correcting divisive human categorizations (racial superiority, gender superiority) has bettered society. Scholars have often claimed that humans are unique and superior to nonhuman animals. These claims need to be reevaluated. Many have already been refuted. Animals have been shown to outperform humans in many tasks, including cognitive ones. Here we raise the question: Has the false sense of superiority been used to justify human cruelty to animals?

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Human And Nonhuman Animals: Equals In Uniqueness, Uta Maria Juergens Jan 2018

Human And Nonhuman Animals: Equals In Uniqueness, Uta Maria Juergens

Animal Sentience

Chapman & Huffman attack the idea that humans are unique and therefore superior to nonhuman beings. They call on humankind to use their “intellect to change [their] actions.” I am in full accord with their line of thought, which differentiates uniqueness from superiority and enjoins humans to take responsible action. I suggest, however, that humans are unique with regard to cognitive fluidity. The same conclusions can be reached via another argument based on human uniqueness.

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Good News: Humans Are Neither Distinct Nor Superior, Anne Benvenuti Jan 2018

Good News: Humans Are Neither Distinct Nor Superior, Anne Benvenuti

Animal Sentience

Chapman & Huffman suggest that to correct our thinking about the supposed superiority of humans over other animals, we must train our reasoned investigation upon ourselves. Their thesis may usefully be viewed from within the general findings of the cognitive revolution in science, particularly findings that speak to the limits of rationality in everyday thought of humans. That we have failed — throughout a long history of scientific and philosophical thought — to ask fundamental questions about animal cognition and emotion is rooted in the fact that much of our thinking, feeling, and behaving is beyond our own immediate grasp. …

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Using Anthropocentrism To The Benefit Of Other Species, Vanessa Wilson Jan 2018

Using Anthropocentrism To The Benefit Of Other Species, Vanessa Wilson

Animal Sentience

Chapman & Huffman (2018) argue that we should not consider humans as unique or superior to other animals when we have the chance to explore the diversity of the traits of other species. This is a valid and progressive point in our approach to research, but I suggest that an anthropocentric approach can have animal welfare benefits when it helps us perceive other species – especially distantly related ones such as crustaceans – in a human light.

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Individuals In The Wild, Bob Fischer Jan 2018

Individuals In The Wild, Bob Fischer

Animal Sentience

If many wild animals have net negative lives, then we have to consider how likely it is that the good for animals, considered as individuals, aligns with the good for species, or the climate, or the preservation of wild spaces.

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How To Foster Respect For Animals? Superiority, Dissimilarity, And Prejudice, Matteo Colombo Jan 2018

How To Foster Respect For Animals? Superiority, Dissimilarity, And Prejudice, Matteo Colombo

Animal Sentience

Chapman & Huffman (C & H) might be taken to argue as follows: Humans may treat animals however they want only if humans are superior to animals. But humans are not superior to animals. Therefore, humans may not treat animals however they want. Whatever its merit, this is not C & H’s actual argument. Their point, instead, is that humans often mistreat animals because they tend to perceive them as inferior. A remedy for animal mistreatment would then be acknowledging the deep similarities between us and animals. But is C & H’s suggested remedy likely to be effective to foster …

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Insulting Words: "They Are Animals!", Carolyn A. Ristau Jan 2018

Insulting Words: "They Are Animals!", Carolyn A. Ristau

Animal Sentience

As Chapman & Huffman state, creating divisive human categories has rationalized atrocities committed against the “other.” Labeling neighboring warring villagers as “animals” is considered a despicable insult. Yet contemporary scientific views of many animals grant them thinking and conscious faculties, and the capacity for impressive achievements, many unattainable by humans. Robots, too, can accomplish many similar feats. But the essential reason we must protect animals is not because of their admirable abilities, but their capacity for consciousness, for suffering. Robots are not conscious. Participants in the human-animal debate should not complain about changing criteria for determining human uniqueness. New and …

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We Don’T Want To Know What We Know, Judith Benz-Schwarzburg Jan 2018

We Don’T Want To Know What We Know, Judith Benz-Schwarzburg

Animal Sentience

Why are humans so ignorant with regard to the fundamental gap between ethical claims and the status quo of the human-animal relationship? To answer this, we should include more psychological and sociological perspectives in our discussions.

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Two Fallacies In Comparisons Between Humans And Non-Humans, Don Ross Jan 2018

Two Fallacies In Comparisons Between Humans And Non-Humans, Don Ross

Animal Sentience

The hypothesis that humans are superior to non-humans by virtue of higher cognitive powers is often supported by two recurrent fallacies: (1) that any competence shown by humans but not by our closest living relatives (apes) must be unique to humans; and (2) that grades of intelligence can be inferred from behavior without regard to motivational structures.

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Is Superiority A Necessary Aspect Of Cruelty?, William H. Edmondson Jan 2018

Is Superiority A Necessary Aspect Of Cruelty?, William H. Edmondson

Animal Sentience

Chapman & Huffman argue that humans inflict cruelty without apparent concern because of their categorization of the victims as inferior. The supposed inferiority of non-human animals can be argued against on the basis of documentation and analysis of behaviour. Humans continue to inflict cruelty on their own and other species. It is not obvious that a sense of superiority is a necessary aspect of cruel behaviour. Nor is it obvious that further enlightenment regarding the cognitive status of non-humans will diminish cruelty.

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What Sets Us Apart Could Be Our Salvation, Anne Fawcett, Paul Mcgreevy Jan 2018

What Sets Us Apart Could Be Our Salvation, Anne Fawcett, Paul Mcgreevy

Animal Sentience

We agree with Chapman & Huffman that human capacities are often assumed to be unique — or attempts are made to demonstrate uniqueness scientifically — in order to justify the exploitation of animals and ecosystems. To extend the argument that human exceptionalism is against our interests, we recommend adopting the One Welfare framework, according to which animal welfare, environmental sustainability and human wellbeing are inseparably linked. Let us distinguish ourselves from other animals by resisting our short- and mid-term Darwinian inclinations, consuming less, reproducing less, and striving for a much longer-term biological fitness for us all.

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Identification Of Sarcocystis Spp. By Polymerase Chain Reaction And Microscopic Examination In Various Beef Products (Minced Meat, Meatballs, Fermented Sausage), Ufuk Kamber, Mükremi̇n Özkan Arslan, Güven Gülbaz, Gencay Taşkin Taşçi, Ati̇la Akça Jan 2018

Identification Of Sarcocystis Spp. By Polymerase Chain Reaction And Microscopic Examination In Various Beef Products (Minced Meat, Meatballs, Fermented Sausage), Ufuk Kamber, Mükremi̇n Özkan Arslan, Güven Gülbaz, Gencay Taşkin Taşçi, Ati̇la Akça

Turkish Journal of Veterinary & Animal Sciences

Sarcocystis species are the most commonly encountered parasitic organisms in animals. Sarcocystis hominis (Sarcocystis bovihominis), the species found in beef cattle, is not visible macroscopically in muscle tissue. In recent years it has been established that, in addition to being a zoonotic parasite transmitted via the consumption of beef, the parasite produces toxins and causes food poisoning. Therefore, this study was undertaken in order to determine the extent to which Sarcocystis species are present in minced meat, meatballs, and fermented sausages produced from beef and marketed in Kars. A total of 150 samples, 50 of each product, were collected in …

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Effect Of Epidural Dexmedetomidine With Or Without Local Anesthetics On Painscore And Serum Il-6 Levels In Dogs Undergoing Elective Ovariohysterectomy, Mudasir Ahmad Shah, Prakash Kinjavdekar, Amarpal -, Deepti Sharma, Abhijit Motiram Pawde, Abu Rafee Malik, Abas Rashid Bhat Jan 2018

Effect Of Epidural Dexmedetomidine With Or Without Local Anesthetics On Painscore And Serum Il-6 Levels In Dogs Undergoing Elective Ovariohysterectomy, Mudasir Ahmad Shah, Prakash Kinjavdekar, Amarpal -, Deepti Sharma, Abhijit Motiram Pawde, Abu Rafee Malik, Abas Rashid Bhat

Turkish Journal of Veterinary & Animal Sciences

To evaluate the postoperative analgesic effects of epidural dexmedetomidine with or without local anesthetics, prospective randomized double-blinded clinical trials were performed with 24 healthy client-owned mixed-breed adult dogs with an average weight of 18.1 ± 2.4 kg allotted equally (n = 6) to four groups: A, B, C, and D. All animals were premedicated intramuscularly with atropine (0.04 mg/kg) and after 5 min by intravenous midazolam (0.7 mg/kg). After 10 min of premedication, in group A dexmedetomidine (7 µg/kg) and in groups B, C, and D, in addition to dexmedetomidine (7 µg/kg), lidocaine (4.4 mg/kg), bupivacaine (2 mg/kg), and ropivacaine …

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Comparative Clinical And Parasitological Efficacy Of Moxidectin Pour-On, Ivermectin, And Piperazine Citrate On Toxocara Vitulorum Infection In Buffalo Calves (Bubalus Bubalis):A Randomized Clinical Trial, Mohamed Abdo Rizk, Salama A. Osman, Magdy H. Al-Gaabary, Sabry A. Elkhodery Jan 2018

Comparative Clinical And Parasitological Efficacy Of Moxidectin Pour-On, Ivermectin, And Piperazine Citrate On Toxocara Vitulorum Infection In Buffalo Calves (Bubalus Bubalis):A Randomized Clinical Trial, Mohamed Abdo Rizk, Salama A. Osman, Magdy H. Al-Gaabary, Sabry A. Elkhodery

Turkish Journal of Veterinary & Animal Sciences

Toxocara vitulorum is an important intestinal nematode that causes great economic losses in farm animals worldwide. However, there is a paucity in the development of effective and safe anthelmintic drugs against this parasite in buffalo calves. Therefore, this study aimed to evaluate the antitoxocariasis efficacy of moxidectin, ivermectin, and piperazine citrate in buffalo calves. To achieve this purpose, 130 buffalo calves were randomly selected from Kafr El-Sheikh governorate, Egypt, and were examined for the presence of Toxocara vitulorum. Thirty calves were identified to be infected. Diseased calves were allocated randomly into 3 groups (10 each). The first group received moxidectin …

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Comparison Between The Anaesthetic Effects Of Xylazine?Ketamine And Diazepam?Ketamine: Physiological And Blood Parameters In Young Hamadryas Baboons (Papio Hamadryas), Fahd Alsobayil, Madeh Sadan, Abd Al-Azeez Meshaal Al-Shoshan Jan 2018

Comparison Between The Anaesthetic Effects Of Xylazine?Ketamine And Diazepam?Ketamine: Physiological And Blood Parameters In Young Hamadryas Baboons (Papio Hamadryas), Fahd Alsobayil, Madeh Sadan, Abd Al-Azeez Meshaal Al-Shoshan

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was to evaluate the anaesthetic effects on young hamadryas baboons (Papio hamadryas) of xylazine-ketamine (XK) compared to diazepam-ketamine (DK). Six healthy young male hamadryas baboons were first premedicated with xylazine HCl (0.5 mg/kg, IM) and anaesthetised 20 min later with ketamine (10 mg/kg, IM). After a 10-day washout period, the hamadryas baboons were premedicated with diazepam (1 mg/kg, IM) and anaesthetised 20 min later with ketamine (10 mg/kg, IM). The onset, duration, and the depth of anaesthesia were determined by recording palpebral, corneal, and jaw reflexes. The results showed a significant decrease in heart rate …

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Effect Of Ractopamine Hydrochloride On Growth Promotion In Guinea Pigs (Cavia Porcellus), Irene Citlalli Zuñiga Galindo, Jaime Alonso Navarro Hernandez, Shalaiko Christian Carlin Valderrabano, Julio Cesar Sanchez Lemus, Ivan Juarez Rodriguez, Dinorah Vargas Estrada Jan 2018

Effect Of Ractopamine Hydrochloride On Growth Promotion In Guinea Pigs (Cavia Porcellus), Irene Citlalli Zuñiga Galindo, Jaime Alonso Navarro Hernandez, Shalaiko Christian Carlin Valderrabano, Julio Cesar Sanchez Lemus, Ivan Juarez Rodriguez, Dinorah Vargas Estrada

Turkish Journal of Veterinary & Animal Sciences

Ractopamine hydrochloride (R) is commonly used in the livestock industry, mainly in pork and beef, to improve feed efficiency and productivity. In the present study, the use of R at different doses (20 ppm, 30 ppm, or 40 ppm) on growth performance and carcass characteristics of guinea pigs (male and female) was explored with a view to achieving greater use of this species for human consumption. Thirty-two clinically healthy guinea pigs at an average age of 5 weeks were used. The daily gain, feed over gain ratio, Kleiber ratio, carcass yield, and muscle thickness of the thigh in millimeters were …

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Survey Of Dirofilaria Immitis In Dogs From Sivas Province In Thecentral Anatolia Region Of Turkey, Ahmet Duran Ataş, Kürşat Altay, Ahmet Ali̇m, Erkan Özkan Jan 2018

Survey Of Dirofilaria Immitis In Dogs From Sivas Province In Thecentral Anatolia Region Of Turkey, Ahmet Duran Ataş, Kürşat Altay, Ahmet Ali̇m, Erkan Özkan

Turkish Journal of Veterinary & Animal Sciences

In this research, we investigate the prevalence of Dirofilaria immitis infection in dogs using microscopical, serological, and molecular methods from the Central Anatolia Region (Sivas) of Turkey and reveal the associated risk factors. Whole blood and serum samples were obtained from 306 dogs older than 7 months. Polymerase chain reaction (PCR) and the modified Knott's method (Knott) were used for detecting the microfilaria and enzyme-linked immunosorbent assay (ELISA) was applied for the presence of D. immitis antigens. The prevalence of D. immitis in dogs was detected as 2.9% (9/306) by PCR and ELISA and as 1.3% (4/306) by Knott. All …

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Congenital Tuberculosis In A 25-Day-Old Female Calf, Maria Del Carmen Espejel Del Moral, Juan Carlos Del Rio, Alfredo Medrano, Marco Antonio Santillan, Jose Francisco Morales Jan 2018

Congenital Tuberculosis In A 25-Day-Old Female Calf, Maria Del Carmen Espejel Del Moral, Juan Carlos Del Rio, Alfredo Medrano, Marco Antonio Santillan, Jose Francisco Morales

Turkish Journal of Veterinary & Animal Sciences

A female calf, housed in a dairy intensive-system farm, suddenly died 25 days after birth. Routine necropsy revealed multiple variably sized white to yellowish nodules in the lungs. Histopathological diagnosis showed severe granulomatous pneumonia with acid-fast bacilli; Mycobacterium bovis was confirmed by polymerase chain reaction and culture isolation. Congenital tuberculosis was diagnosed based on these findings. The calf probably acquired the infection from her mother through aspiration of the amniotic fluid. The aim here is to describe the morphological lesions and complementary confirmation of congenital tuberculosis in a young female calf.

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Application Of Reproductive Biotechnologies For Sustainableproduction Of Livestock In Turkey, Abdullah Kaya, Erdoğan Güneş, Erdoğan Memi̇li̇ Jan 2018

Application Of Reproductive Biotechnologies For Sustainableproduction Of Livestock In Turkey, Abdullah Kaya, Erdoğan Güneş, Erdoğan Memi̇li̇

Turkish Journal of Veterinary & Animal Sciences

Reproductive biotechnology encompasses powerful tools to enhance the efficiency and profitability of livestock reproduction, production, and product quality. These technologies include genomic selection, evaluation of semen (from bulls, bucks, and rams) using advanced cell and molecular technologies, semen cryopreservation and artificial insemination, estrus synchronization, superovulation of the females (cows, dams, and ewes), ovum pick-up, in vitro fertilization and embryo culture, embryo transfer, and pregnancy detection. The extent of applications of these modern technologies and their economic impacts for livestock production in Turkey are elusive. As a result, there is an urgent need for sound economic analyses, research and education, training …

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