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Articles 13861 - 13890 of 36535

Full-Text Articles in Animal Sciences

Is Sentience Only A Nonessential Component Of Animal Welfare?, Ian J.H. Duncan Jan 2016

Is Sentience Only A Nonessential Component Of Animal Welfare?, Ian J.H. Duncan

Animal Sentience

According to Broom (2014), animal welfare is a concept that can be applied to all animals, including single-celled organisms that are obviously not sentient. Such a stance makes it difficult to draw a connection between welfare and sentience, and that is the book’s downfall. Some excellent points are made about sentience and there are very good discussions on animal welfare. However, unless sentience is considered the essential component of welfare, any attempt to link the two phenomena will be unsuccessful — and that, indeed, is the case with this book.

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Animal Welfare And Animal Rights, M.E. Rolle Jan 2016

Animal Welfare And Animal Rights, M.E. Rolle

Animal Sentience

This overview of Broom’s book, Sentience and Animal Welfare (2014), considers the role the book could play in the animal rights debate. In a thoroughly researched and objectively presented text, Broom lays out information that could place doubt in the minds of decision-makers. By highlighting not just the ways animals resemble humans, but also the ways humans resemble animals, Broom shines a light on a solidly grey area in the animal rights debate.

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Sentience And Animal Welfare: New Thoughts And Controversies, Donald M. Broom Jan 2016

Sentience And Animal Welfare: New Thoughts And Controversies, Donald M. Broom

Animal Sentience

Sentience involves having some degree of awareness but awareness of self is not as complex as some people believe. Fully functioning vertebrate animals, and some invertebrates, are sentient but neither humans nor non-humans are sentient early in development or if brain-damaged. Feelings are valuable adaptive mechanisms and an important part of welfare but are not all of welfare so the term welfare refers to all animals, not just to sentient animals. We have much to learn about what non-human animals want from us, the functioning of the more complex aspects of their brains and of our brains and how we …

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Why Babies Do Not Feel Pain, Or: How Structure-Derived Functional Interpretations Can Go Wrong, Helmut Segner Jan 2016

Why Babies Do Not Feel Pain, Or: How Structure-Derived Functional Interpretations Can Go Wrong, Helmut Segner

Animal Sentience

The response to pain involves a non-conscious, reflexive action and a conscious perception. According to Key (2016), consciousness — and thus pain perception — depends on a neuronal correlate that has a “unique neural architecture” as realized in the human cortex. On the basis of the “bioengineering principle that structure determines function,” Key (2016) concludes that animal species such as fish, which lack the requisite cortex-like neuroanatomical structure, are unable to feel pain. This commentary argues that the relationship between brain structure and brain function is less straightforward than suggested in Key’s target article.

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Fish Pain: Would It Change Current Best Practice In The Real World?, B. K. Diggles Jan 2016

Fish Pain: Would It Change Current Best Practice In The Real World?, B. K. Diggles

Animal Sentience

Much of the “fish pain debate” relates to how high the bar for pain should be set. The close phylogenetic affinities of teleosts with cartilaginous fishes which appear to lack nociceptors suggests caution should be applied by those who seek to lower the bar, especially given the equivocal and conflicting nature of the experimental data currently available for teleosts. Nevertheless, even if we assume fish “feel pain,” it is difficult to see how current best practice in aquaculture would change. This is because of the need to avoid stress at all stages of the rearing process to optimize health, growth …

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Leaving The Door Open For Fish Pain: Evolutionary Convergence And The Utility Of ‘Just-So Stories’, David B. Edelman Jan 2016

Leaving The Door Open For Fish Pain: Evolutionary Convergence And The Utility Of ‘Just-So Stories’, David B. Edelman

Animal Sentience

Key argues that fish do not experience pain because they lack the necessary (but not necessarily sufficient) brain structures and associated functional circuitry to engender such conscious percepts. I propose that fish pain may be dependent on neuroanatomical regions and pathways that are structurally and/or functionally analogous — but not strictly homologous — to well-characterized mammalian substrates of pain. An example is the convergent appearance of the complex, single-compartment eye across invertebrate and vertebrate phylogeny. Structural-functional convergence is ubiquitous in evolution. Comparative inferences and correlative lines of evidence play an important role in building evolutionary arguments. The dismissal of the …

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Going Beyond Just-So Stories, Brian Key Jan 2016

Going Beyond Just-So Stories, Brian Key

Animal Sentience

Colloquial arguments for fish feeling pain are deeply rooted in anthropometric tendencies that confuse escape responses to noxious stimuli with evidence for consciousness. More developed arguments often rely on just-so stories of fish displaying complex behaviours as proof of consciousness. In response to commentaries on the idea that fish do not feel pain, I raise the need to go beyond just-so stories and to rigorously analyse the neural circuitry responsible for specific behaviours using new and emerging technologies in neuroscience. By deciphering the causal relationship between neural information processing and conscious behaviour, it should be possible to assess cogently the …

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How Welfare Biology And Commonsense May Help To Reduce Animal Suffering, Yew-Kwang Ng Jan 2016

How Welfare Biology And Commonsense May Help To Reduce Animal Suffering, Yew-Kwang Ng

Animal Sentience

Welfare biology is the study of the welfare of living things. Welfare is net happiness (enjoyment minus suffering). Since this necessarily involves feelings, Dawkins (2014) has suggested that animal welfare science may face a paradox, because feelings are very difficult to study. The following paper provides an explanation for how welfare biology could help to reduce this paradox by answering some difficult questions regarding animal welfare. Simple means based on commonsense could reduce animal suffering enormously at low or even negative costs to humans. Ways to increase the influence of animal welfare advocates are also discussed, focusing initially on farmed …

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What’S The Common Sense Of Just Some Improvement Of Some Welfare For Some Animals?, Liv Baker Jan 2016

What’S The Common Sense Of Just Some Improvement Of Some Welfare For Some Animals?, Liv Baker

Animal Sentience

The goal of Animal Welfare Science to reduce animal suffering is commendable but too modest: Suffering animals need and deserve far more.

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Animal Suffering Calls For More Than A Bigger Cage, Simon R. B. Leadbeater Jan 2016

Animal Suffering Calls For More Than A Bigger Cage, Simon R. B. Leadbeater

Animal Sentience

Ng (2016) argues for incremental welfare biology partly because it would be impossible to demonstrate conclusively that animals are sentient. He argues that low cost changes in industrial practices and working collaboratively may be more effective in advancing animal welfare than more adversarial approaches. There is merit in some of Ng’s recommendations but a number of his arguments are, in my view, misdirected. The fact that nonhuman animals feel has already been adequately demonstrated. Cruelty to animals is intrinsic to some industries, so the only way to oppose it is to oppose the industry.

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Why Animal Welfarism Continues To Fail, Lori Marino Jan 2016

Why Animal Welfarism Continues To Fail, Lori Marino

Animal Sentience

Welfarism prioritizes human interests over the needs of nonhuman animals. Despite decades of welfare efforts other animals are mostly worse off than ever before, being subjected to increasingly invasive and harmful treatments, especially in the factory farming and biomedical research areas. A legal rights-based approach is essential in order for other animals to be protected from the varying ethical whims of our species.

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End-State Welfarism, Joel Marks Jan 2016

End-State Welfarism, Joel Marks

Animal Sentience

Yew-Kwang Ng’s research is the work of an obviously sincere, intelligent, and conscientious animal advocate. But I am unable to accept his starting assumption that animal welfare is an appropriate basis for animal ethics. More specifically I argue that animal welfare as a means to animal liberation is an issue that can be debated, but animal welfare as the ultimate end or goal of animal advocacy is misguided.

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Animal Mourning: Précis Of How Animals Grieve (King 2013), Barbara J. King Jan 2016

Animal Mourning: Précis Of How Animals Grieve (King 2013), Barbara J. King

Animal Sentience

Abstract: When an animal dies, that individual’s mate, relatives, or friends may express grief. Changes in the survivor’s patterns of social behavior, eating, sleeping, and/or of expression of affect are the key criteria for defining grief. Based on this understanding of grief, it is not only big-brained mammals like elephants, apes, and cetaceans who can be said to mourn, but also a wide variety of other animals, including domestic companions like cats, dogs, and rabbits; horses and farm animals; and some birds. With keen attention placed on seeking where grief is found to occur and where it is absent …

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Death In The Family, Maria Botero Jan 2016

Death In The Family, Maria Botero

Animal Sentience

Barbara King presents grief as the result of the capacity of human and non-human animals for social and affectionate bonds. This is a novel approach that provides a context for interpreting behavioral evidence of grief. The book also offers thought-provoking insights into the relationship between emotion and the expression of emotion. The most surprising element of King’s approach is that, throughout the book, her account of non-human animal grief forces us to reassess the way we treat them.

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Anticipatory Grief, Tara Fox Hall Jan 2016

Anticipatory Grief, Tara Fox Hall

Animal Sentience

This commentary reviews Barbara King’s How Animals Grieve, delving into the controversial topic of the status of animals in our society, as well as the key difference between human and non-human grief: the ability to anticipate death.


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The Object Of Grief, Clark Glymour Jan 2016

The Object Of Grief, Clark Glymour

Animal Sentience

King’s new book is a wonderful collection of diverse anecdotes illustrating the variety of animal practices that are convincing illustrations of grief. Those who want scientific arguments for that conclusion should, however, read elsewhere.

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Understanding Emotional Suffering, Barbara J. King Jan 2016

Understanding Emotional Suffering, Barbara J. King

Animal Sentience

In responding to insightful commentaries from 7 scholars, for which I am grateful, I offer new thoughts on whether animals can conceptualize and express signs of grief. I also discuss why I included both weak and strong examples of animal mourning, and how this work may help us think about enhanced welfare for animals, including freedom from emotional suffering.

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Analysis Of Risk Factors In The Management Of Foot-And-Mouth Disease In Turkey, Berri̇n Şentürk, Cengi̇z Yalçin, Aytaç Akçay Jan 2016

Analysis Of Risk Factors In The Management Of Foot-And-Mouth Disease In Turkey, Berri̇n Şentürk, Cengi̇z Yalçin, Aytaç Akçay

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to perform a risk analysis of the management of foot-and-mouth disease (FMD) epidemics in Turkey. The relationship between disease outbreaks and risk was analyzed by evaluating 11 disease risk factors related to the input, processing, production, movement, and marketing infrastructure aspects of the animal production chain. A progressive (hierarchical) clustering analysis method was employed to group the quantitative data obtained for each of the risk variables. The total risk scores were grouped in a dendrogram. There was a strong positive relationship (72%) between risk variables and total outbreak numbers (P < 0.01). Results showed the districts in which the FMD risk is high and indicate where the appropriate measures should be taken to eradicate or at least minimize outbreaks.

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Lactose-Rich Milk Replacer Modifies The Proteome Of Bloodplasma In 2-Week-Old Calves, Alicja Dratwa Chalupnik, Malgorzata Ozgo, Agnieszka Herosimczyk, Adam Lepczynski, Katarzyna Michalek Jan 2016

Lactose-Rich Milk Replacer Modifies The Proteome Of Bloodplasma In 2-Week-Old Calves, Alicja Dratwa Chalupnik, Malgorzata Ozgo, Agnieszka Herosimczyk, Adam Lepczynski, Katarzyna Michalek

Turkish Journal of Veterinary & Animal Sciences

The aim of the study was to create a specific pattern of protein expression changes in the plasma of 2-week-old calves treated with excessive lactose doses. Identification of proteins, the expression of which changes during the short-term administration of lactose, may help to exclude or confirm the causes of diarrhea observed in newborn calves. The present study utilized 2-D electrophoresis combined with MALDI-TOF mass spectrometry and identified 6 blood plasma proteins, the expression of which changed under the influence of lactose added to the milk replacer. The pattern of expression of blood plasma proteins, including decreased expression of fibrinogen and …

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In Ovo Feeding With Ss-Hydroxy Ss-Methylbutyrate And Broilerperformance, Intestinal Health, And Immunity Status, Ömer Hakan Muğlali, Mustafa Salman, Ayhan Gacar, Fi̇li̇z Akdağ, Mustafa Yavuz Gülbahar, Alper Çi̇ftçi̇, Ertan Emek Onuk, Fi̇li̇z Karadaş, Hüseyi̇n Eseceli̇ Jan 2016

In Ovo Feeding With Ss-Hydroxy Ss-Methylbutyrate And Broilerperformance, Intestinal Health, And Immunity Status, Ömer Hakan Muğlali, Mustafa Salman, Ayhan Gacar, Fi̇li̇z Akdağ, Mustafa Yavuz Gülbahar, Alper Çi̇ftçi̇, Ertan Emek Onuk, Fi̇li̇z Karadaş, Hüseyi̇n Eseceli̇

Turkish Journal of Veterinary & Animal Sciences

The effects of in ovo administration of β-hydroxy-β-methylbutyrate (HMB) on broiler performance, intestinal health, and immunity were investigated. At day 18 of incubation, fertile eggs were divided into negative (no injection) and positive (physiologic serum injection) controls and three HMB treatment groups. HMB solution was injected at 0.1% (Group 1), 0.2% (Group 2), and 0.3% (Group 3) concentrations. There were no significant differences between the groups for live weight gain, feed conversion rate, and hot carcass, breast meat, liver, and heart weight. However, the gizzard weight in Group 1 was significantly higher than those in the other groups (P < 0.05). Although the intestinal villi lengths in the treatment Groups 1 and 3 on day 20 were greater than those in the control groups (P < 0.01), at the end of the experiment there were no significant differences among the groups. For antibody levels, the differences between groups on days 4 and 42 were highly significant (P < 0.01), and the antibody levels in Group 2 were higher than those in the other groups. Separately, growth performance and antibody levels were positively correlated with the length of villi in Group 2 (HMB 0.2%).

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Progesterone Concentration In Milk And Blood Serum And Reproductiveefficiency Of Cows After Ovsynch Treatment, Dejan Vukovic, Aleksandar Bozic, Renata Relic, Blagoje Stancic, Dragan Gvozdic, Denis Kucevic Jan 2016

Progesterone Concentration In Milk And Blood Serum And Reproductiveefficiency Of Cows After Ovsynch Treatment, Dejan Vukovic, Aleksandar Bozic, Renata Relic, Blagoje Stancic, Dragan Gvozdic, Denis Kucevic

Turkish Journal of Veterinary & Animal Sciences

An experiment was conducted to investigate the effects of hormonal synchronization of ovulation on progesterone concentrations in milk and blood serum and on reproductive performance. Sixty Holstein-Friesian cows averaging 8000 L over 305 days of lactation were divided into 2 groups of 30 animals. One-factor ANOVA and a t-test of progesterone concentrations in venous serum and milk revealed that the lowest concentrations of progesterone in milk (Ovsynch 5.8 ± 1.0 ng/mL; control 4.5 ± 0.6 ng/mL) and blood serum (Ovsynch 1.3 ± 0.9 ng/mL; control 1.4 ± 0.5 ng/mL) in both groups were found on the day of estrus or …

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Comparison Of Hematological Parameters Of Brucella-Seronegative Naturallyinfected Cattle With Bvdv, Bhv-1, And Bhv-4, Muhammet Eren Aslan, Ahmet Kürşat Azkur, Emel Biyikli, Serkal Gazyağci, İbrahi̇m Sözdutmaz Jan 2016

Comparison Of Hematological Parameters Of Brucella-Seronegative Naturallyinfected Cattle With Bvdv, Bhv-1, And Bhv-4, Muhammet Eren Aslan, Ahmet Kürşat Azkur, Emel Biyikli, Serkal Gazyağci, İbrahi̇m Sözdutmaz

Turkish Journal of Veterinary & Animal Sciences

Abortion, neonatal deaths, and infertility cause important production losses in the livestock industry. Many viral infections are responsible for changes in hematological values of animals. This study aimed to find whether there is any difference in blood parameters of cattle that are naturally infected with BVDV, BHV-1, and BHV-4 and Brucella-seronegative. For this purpose, 401 whole-blood samples collected from cattle were analyzed by ELISA and PCR/RT-PCR to detect specific antibodies and antigens for BVDV, BHV-1, and BHV-4. Hematological analysis and results were compared between naturally infected BVDV, BHV-1, and BHV-4 groups and a control group. Results showed a statistically significant …

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Subarachnoid Transplantation Of Autologous Neurogenically Induced Bone Marrow Derived Mesenchymal Stem Cells For The Treatment Of Fibrocartilaginous Embolic Myelopathy In Two Dogs, Pinar Can, Ömer Beşalti, Eylül Akpinar, Zeynep Aktaş, Ayşe Eser Elçi̇n, Yaşar Murat Elçi̇n Jan 2016

Subarachnoid Transplantation Of Autologous Neurogenically Induced Bone Marrow Derived Mesenchymal Stem Cells For The Treatment Of Fibrocartilaginous Embolic Myelopathy In Two Dogs, Pinar Can, Ömer Beşalti, Eylül Akpinar, Zeynep Aktaş, Ayşe Eser Elçi̇n, Yaşar Murat Elçi̇n

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was to investigate the effects of autologous neurogenically induced bone marrow-derived mesenchymal stem cells (NIBM-MSCs) in two dogs suspected to have fibrocartilaginous embolic myelopathy (FCEM). Both dogs were paraplegic without deep pain perception (DPP) and tentatively diagnosed by MRI. Autologous NIBM-MSCs (5 × 106) were transplanted into the lumbar subarachnoid space two times with a 21-day interval for each patient. Based on a 21-month follow-up of the treated animals, the transplantation of NIBM-MSCs seems to be promising in subjects with FCEM lacking DPP.

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Canine Brucellosis In Turkey From An Environmental Perspective, Uçkun Sai̇t Uçan Jan 2016

Canine Brucellosis In Turkey From An Environmental Perspective, Uçkun Sai̇t Uçan

Turkish Journal of Veterinary & Animal Sciences

Brucellosis is a zoonotic disease that affects not only livestock with economical losses but also human beings by causing serious health problems worldwide. Canine brucellosis has largely been overlooked in the world. In Turkey, brucellosis has also been one of the major concerns for decades. Canine brucellosis in this country has been reviewed and discussed from an environmental perspective in this review. As a part of prevention measures, one of the urgent practices that should be applied is to expand the routine examinations to include serological testing for all animals on arrival to kennels and then to decide the fate …

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Isolation Of Adipose Tissue-Derived Stem Cells, Asuman Özen, İrem Gül Sancak, Ahmet Ceylan, Özge Özgenç Jan 2016

Isolation Of Adipose Tissue-Derived Stem Cells, Asuman Özen, İrem Gül Sancak, Ahmet Ceylan, Özge Özgenç

Turkish Journal of Veterinary & Animal Sciences

Mesenchymal stem cells are being used increasingly in cell-based therapies. Adipose tissue is an important source of mesenchymal stem cells and is also routinely used in research on lipid metabolism and obesity. Their high expansion potential and the ease of isolation make these cells an attractive cell source for regenerative therapies. The objective of this review is to give detailed information about the isolation, expansion, and clinical use of these cells in veterinary medicine.

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Polymorphism Of Exon 2 Of Dio2 Gene And Its Association Withseasonal Reproduction In Sheep, Jianning He, Dongwei Huang, Ran Di, Jinxin Wang, Mingxing Chu, Qiuyue Liu, Wenping Hu, Xiangyu Wang, Zhangyuan Pan Jan 2016

Polymorphism Of Exon 2 Of Dio2 Gene And Its Association Withseasonal Reproduction In Sheep, Jianning He, Dongwei Huang, Ran Di, Jinxin Wang, Mingxing Chu, Qiuyue Liu, Wenping Hu, Xiangyu Wang, Zhangyuan Pan

Turkish Journal of Veterinary & Animal Sciences

DIO2 was studied as a candidate gene for reproduction in sheep. Three pairs of primers were designed to detect single nucleotide polymorphisms (SNPs) of exon 2 of DIO2 in nonseasonal and seasonal reproduction breeds. The polymorphisms were detected using SeqMan II and analyzed by PCR-RFLP. The sheep DIO2 gene was cloned and its mutations were detected in five sheep breeds whose reproductive seasonality and litter sizes were different. Association analyses were performed to reveal the relationships between SNPs and reproductive seasonality as well as litter size in sheep. The results showed that a 1041-bp DNA fragment of the sheep DIO2 …

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Characterization Of Porcine Adiponectin Gene (Adipoq) Polymorphismsand Their Association With Litter Size, Xiaodong Zhang, Ning Zhou, Jie Zhou, Ning Wang, Xiang Qin, Hui Dong, Yueyun Ding, Zongjun Yin Jan 2016

Characterization Of Porcine Adiponectin Gene (Adipoq) Polymorphismsand Their Association With Litter Size, Xiaodong Zhang, Ning Zhou, Jie Zhou, Ning Wang, Xiang Qin, Hui Dong, Yueyun Ding, Zongjun Yin

Turkish Journal of Veterinary & Animal Sciences

Litter size is one of the most important economic traits for pig production as it is directly related to production efficiency. To evaluate the effects of the adiponectin (ADIPOQ) gene on porcine litter size, we investigated ADIPOQ polymorphisms in three breeds, Wannan Black pigs, Berkshire pigs, and BW pigs (crossbred pigs produced from mating male Berkshire pigs and female Wannan Black pigs), using the PCR-SSCP method. Three SNPs (c. 178G > A, c. 1165A > G, and c. 1138G > A) were identified. In Wannan Black pigs, association analysis indicated that the c. 178G > A SNP genotype was significantly associated with an effect …

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Effect Of Oxytocin On Milk Proteins And Fatty Acid Profile Insahiwal Cows During Lactation Periods, Aneela Hameed, Faqir Muhammad Anjum, Tahir Zahoor, Zia Ur-Rahman, Saeed Akhtar, Majid Hussain Jan 2016

Effect Of Oxytocin On Milk Proteins And Fatty Acid Profile Insahiwal Cows During Lactation Periods, Aneela Hameed, Faqir Muhammad Anjum, Tahir Zahoor, Zia Ur-Rahman, Saeed Akhtar, Majid Hussain

Turkish Journal of Veterinary & Animal Sciences

Bovine milk, a rich source of proteins and fatty acids, has a beneficial impact on physicochemical and organoleptic properties. The current study was planned to identify oxytocin's effects on protein and fatty acid profiles of cow milk (the Sahiwal breed) at various lactation stages (early, middle, and late) under a controlled atmosphere and feeding inputs. Examination of milk protein and fatty acid profiles by urea polyacrylamide gel electrophoresis and gas chromatography-mass spectrometry respectively revealed the significant effect (P < 0.01) of oxytocin during the cow's lactation stages. In electrophoretic patterns, casein (αs1-CN, αs2-CN, β-CN, and k-CN) and whey protein fractions (Ig, BSA, β-Lg, and α-La) appeared as low-intensity bands in oxytocin-injected milk when compared to the control. Reductions in concentrations of fatty acids C16:0 (25.00%) and C18:1 (21.60%) were observed in oxytocin-treated milk as compared to the control group (29.30% and 29.10%, respectively) at late lactation.

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Effects Of Ultrasonication On Damaged Spermatozoa And Mitochondrial Activity Rate, Pinar Peker Akalin, Nuri̇ Başpinar, Kenan Çoyan, Mustafa Numan Bucak, Şükrü Güngör, Caner Öztürk Jan 2016

Effects Of Ultrasonication On Damaged Spermatozoa And Mitochondrial Activity Rate, Pinar Peker Akalin, Nuri̇ Başpinar, Kenan Çoyan, Mustafa Numan Bucak, Şükrü Güngör, Caner Öztürk

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to describe an optimal sonication procedure for sperm cells. Therefore, we used several parameters such as damaged spermatozoa rate (%), mitochondrial activity rate (%), levels of lipid peroxidation, and total antioxidant potential. Ejaculates were collected from rams (n = 3) and were divided into aliquots and 3-, 6-, and 10-s duration times; 1, 3, 5, and 8 repetitive application groups were established. In the groups with 3-, 6- and 10-s duration times, with the increasing number of repeated applications, damaged spermatozoa rates increased (P < 0.05) while mitochondrial activity rates decreased (P < 0.05). In relation with sonication duration time, total antioxidant potential levels increased (P < 0.05) in single-application groups compared to those in control groups and gradually decreased as the repetitions increased. The most effective results were obtained in the group with 8 repetitions and 10-s duration based on damaged spermatozoa rate and mitochondrial activity rate.

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Cryopreservation Of Seabream (Sparus Aurata) Semen And Fertility, Mehmet Borga Tirpan, Erkut Dervi̇ş Özgöray, Havva Alemdar, Ergün Akçay Jan 2016

Cryopreservation Of Seabream (Sparus Aurata) Semen And Fertility, Mehmet Borga Tirpan, Erkut Dervi̇ş Özgöray, Havva Alemdar, Ergün Akçay

Turkish Journal of Veterinary & Animal Sciences

In this study, the aim was to reveal spermatological parameters of seabream (Sparus aurata), freezing ability of semen in different extenders, and fertilization capacity of frozen seabream semen. The study was conducted with 10 male and 6 female brooder seabreams. Female fish were synchronized by photoperiod and water temperature in the breeding season. Four different extenders [Mounib, Salty Mounib, Ringer, and sea water (1% NaCl)] including 10% dimethyl sulfoxide were used to assess the freezing ability of seabream semen. After postthaw spermatological examinations, three successful extenders (Mounib, Ringer, 1% NaCl) were chosen for the fertilization stage and 2 control and …

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