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2007

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Articles 541 - 570 of 679

Full-Text Articles in Animal Sciences

The Effects Of In Ovo Insulin-Like Growth Factor-1 On Embryonic Development Of Musculus Longus Colli Dorsalis In Japanese Quail, Turgay Deprem, Nurhayat Gülmez Jan 2007

The Effects Of In Ovo Insulin-Like Growth Factor-1 On Embryonic Development Of Musculus Longus Colli Dorsalis In Japanese Quail, Turgay Deprem, Nurhayat Gülmez

Turkish Journal of Veterinary & Animal Sciences

The objective of the present study was to evaluate the effects of insulin-like growth factor-1 (IGF-1) on the histological development of the thoracic part of the m. longus colli dorsalis (m. spinalis thoracis) in Japanese quail embryos. A single in ovo dose of recombinant human IGF-1 (rhIGF-1) (100 ng embryo^{-1}) was administered through the blunt end of eggs via a single hole made with a dental drill bit, without penetrating the chorioallantoic membrane. For histological evaluation, the embryos were collected daily from days 7 to 16 of embryonic development (E). In ovo administration of rhIGF-1 increased the diameter of muscle …

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Protein Profile And Plasmid Content Of Lactococcus Lactis Subsp. Lactis Ll52 And Lactococcus Lactis Subsp. Cremoris Lc79 Strains Under Several Stress Conditions, Rahmi̇ Lale, Çağla Tükel, Mustafa Akçeli̇k Jan 2007

Protein Profile And Plasmid Content Of Lactococcus Lactis Subsp. Lactis Ll52 And Lactococcus Lactis Subsp. Cremoris Lc79 Strains Under Several Stress Conditions, Rahmi̇ Lale, Çağla Tükel, Mustafa Akçeli̇k

Turkish Journal of Veterinary & Animal Sciences

Differences in the protein and plasmid content of 2 Lactococcus lactis strains, L. lactis subsp. lactis LL52 and L. lactis subsp. cremoris LC79, under the stresses of high and low temperature, osmotic shock, and low pH were determined. We identified 3 new proteins with molecular masses of 16.0, 29.4, and 45.0 kDa as high temperature stress response specific in strain LL52. High temperature stress did not cause any changes in the protein content of strain LC79. Proteins that were specific for salt stress and low pH stress responses ranged between 16.0 and 40.5 kDa, and 24.8 and 107.5 kDa, respectively, …

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Detection Of Antibodies Produced In Quails (Coturnix Coturnix Japonica) Against Mycoplasma Gallisepticum With Different Serological Tests, Süheyla Türkyilmaz, Fethi̇ye Çöven, Seza Eski̇i̇zmi̇rli̇ler Jan 2007

Detection Of Antibodies Produced In Quails (Coturnix Coturnix Japonica) Against Mycoplasma Gallisepticum With Different Serological Tests, Süheyla Türkyilmaz, Fethi̇ye Çöven, Seza Eski̇i̇zmi̇rli̇ler

Turkish Journal of Veterinary & Animal Sciences

The objectives of this study were to isolate and identify Mycoplasma gallisepticum in quails with clinical and pathological signs of chronic respiratory disease (CRD), and to compare the sensitivity and specificity of commonly used serological tests that are used for the detection of M. gallisepticum antibodies. The study included 20 Japanese quails 10-weeks old with respiratory distress, nasal discharge, mortality and swollen infraorbital sinuses. There was no bacteriological agent isolated. All of the 20 sera samples obtained from the quails were evaluated with AGID, RSA, HI, and ELISA; 2 (10%), 5 (25%), 10 (50%), and 17 (85%) sera samples were …

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The Seroprevalence Of Listeria Monocytogenes In Sport Horses Bred In Ankara Province, H. Zeynep Güçlü, K. Zafer Karaer, Cahi̇t Babür, Selçuk Kiliç Jan 2007

The Seroprevalence Of Listeria Monocytogenes In Sport Horses Bred In Ankara Province, H. Zeynep Güçlü, K. Zafer Karaer, Cahi̇t Babür, Selçuk Kiliç

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the seroprevalence of Listeria monocytogenes in horses bred for sport in the province of Ankara. Sera collected from 100 clinically healthy horses were tested for the presence of L. monocytogenes antibodies using the Osebold absorption test. Agglutination titers >= 1:100 were accepted as positive results and a seropositivity rate was determined. Of the 100 serum samples, 62 were seropositive for L. monocytogenes antibodies detected at dilutions of 1:100 (n = 29, 46.7%), 1:200 (n = 31, 50%), and 1:400 (n = 2, 3.2%).

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Anatomical And Histological Studies Of Accessory Adrenal Nodules In Caspian Miniature Horses, Javad Ahmadpanahi Jan 2007

Anatomical And Histological Studies Of Accessory Adrenal Nodules In Caspian Miniature Horses, Javad Ahmadpanahi

Turkish Journal of Veterinary & Animal Sciences

Microscopic and macroscopic structures of accessory adrenal nodules in Caspian miniature horses (5 males and 5 females) were studied. The accessory adrenal nodules were round or oval and yellow to red. Their maximum diameters varied from 0.1 to 0.5 cm. These nodules were found near the kidneys and adrenal glands, but they were in close contact with the adrenal gland. The accessory adrenal nodules were similar to the adrenal cortex microscopically, and from the outer layer to the inner layer they contained glomerulosa, intermedia, and fasciculata. The adrenal nodules were surrounded by a capsule of collagenous dense connective tissue as …

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First Case Of Anaplasma (Ehrlichia) Platys Infection In A Dog In Turkey, Bülent Ulutaş, Göksel Bayramli, Tüli̇n Karagenç Jan 2007

First Case Of Anaplasma (Ehrlichia) Platys Infection In A Dog In Turkey, Bülent Ulutaş, Göksel Bayramli, Tüli̇n Karagenç

Turkish Journal of Veterinary & Animal Sciences

A male pinscher dog weighing 4.2 kg with a history of intermittent fever, inappetence, weight loss, and weakness occurring periodically for 5 months showed Anaplasma (Ehrlichia) platys inclusions within the platelets of peripheral blood smears. The diagnosis was confirmed using a nested polymerase chain reaction. The dog was treated with doxycycline at a dose of 5 mg/kg twice daily for 21 days. This study is the first case of A. platys infection in Turkey.

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Traumatic Reticulopericarditis In A Saanen Goat, Ahmet Akkoç Jan 2007

Traumatic Reticulopericarditis In A Saanen Goat, Ahmet Akkoç

Turkish Journal of Veterinary & Animal Sciences

An unusual case of reticulopericarditis traumatica complicated with pythorax in a Saanen goat is described. Grossly, ascitic fluid accumulation, pyothorax, disseminated abscesses in the liver, spleen and lung, and severe fibrinopurulent exudation in the pericardial sac were observed. A needle syringe, 6 cm in length, was found within the fibrous tissue extending from the pericardial sac to the diaphragm and the anteroventral part of the reticulum. Microscopically, liver, spleen, and lung sections revealed variably sized abscesses surrounded by a wide zone of fibroblast proliferations and connective tissue capsule. Severe fibrous tissue reaction, accumulation of degenerated polymorph nuclear leucocytes, macrophages, and …

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Sex Determination By Chdw And Chdz Genes Of Avian Sex Chromosomes In Nymphicus Hollandicus, Harun Ceri̇t, Kozet Avanus Jan 2007

Sex Determination By Chdw And Chdz Genes Of Avian Sex Chromosomes In Nymphicus Hollandicus, Harun Ceri̇t, Kozet Avanus

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was sex determination in Nymphicus hollandicus without giving it any harm and obtaining accurate results by DNA analysis. CHD genes are preserved within avian Z and W sex chromosomes. The intron regions of the CHDW and CHDZ genes vary between male (ZZ) and female (ZW) individuals. The method used in this study was based on this difference. DNA was extracted from feathers instead of blood. The intron regions of CHDW and CHDZ genes were amplified by sex specific primers (P2 and P8). PCR products were screened by agarose gel electrophoresis. Individuals showing double (ZW) and …

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Relation Between Abdominal Fat And Serum Cholesterol, Triglycerides, And Lipoprotein Concentrations In Chicken Breeds, Hassan Hussein Musa, Guo H. Chen, Jin H. Cheng, Galal M. Yousif Jan 2007

Relation Between Abdominal Fat And Serum Cholesterol, Triglycerides, And Lipoprotein Concentrations In Chicken Breeds, Hassan Hussein Musa, Guo H. Chen, Jin H. Cheng, Galal M. Yousif

Turkish Journal of Veterinary & Animal Sciences

This study was undertaken to investigate the relation between abdominal fat and serum biochemical indices in chicken. In the study, 120 chickens at 12 weeks of age from Anka and Rugao breeds were used. They were reared under the same environment and management. Blood samples were taken, the serum was harvested by centrifugation, and then the total cholesterol (TCH), triglycerides (TG), and high-density lipoprotein (HDL) were assayed using an enzymatic kit. Very low-density lipoprotein (VLDL) and low-density lipoprotein (LDL) were determined using the Friedwald equation. Chickens were slaughtered and the carcasses were dissected manually to estimate the abdominal fat weight. …

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Effect Of Feeding Supplemental Tallow On The Performance Of Lactating Nili-Ravi Buffaloes, Haq Nawaz, Muhammad Yaqoob, Muhammad Abdullah Jan 2007

Effect Of Feeding Supplemental Tallow On The Performance Of Lactating Nili-Ravi Buffaloes, Haq Nawaz, Muhammad Yaqoob, Muhammad Abdullah

Turkish Journal of Veterinary & Animal Sciences

In order to determine the feeding value of tallow for lactating Nili-Ravi buffaloes, 4 buffaloes were fed 0%, 2%, 4%, or 6% tallow in a 4 X 4 Latin square experiment. The intakes of dry matter (DM), organic matter (OM), crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) decreased (P < 0.01), but the intakes of ether extract (EE) (P < 0.01) and digestible energy (DE) (P < 0.05) increased with increasing levels of tallow in the diets. Intake of net energy for lactation (NE_L) did not differ (P < 0.01) with varying levels of supplemental tallow. Daily milk yield increased (P < 0.01) from 11.00 to 13.2 kg/day. Production of 4% fat corrected milk (FCM), solid corrected milk (SCM), and energy corrected milk (ECM) increased quadratically (P < 0.05) with the increasing level of tallow in the diets. Milk fat content and total milk fat increased linearly (P < 0.01) and quadratically (P < 0.05), respectively, as the level of tallow in the diet increased. There was no difference in protein and lactose content due to feeding tallow. Total solid content increased quadratically (P < 0.05) from 16.45% to 17.67% but solid not fat (SNF) percentages did not vary with varying levels of tallow. The gross energy (GE) of the milk increased from 1096 to 1160 Kcal/kg (P < 0.01) with increasing levels of tallow in the diets. Energetic efficiency of milk production improved in a quadratic (P < 0.05) manner with 2%, 4%, and 6% tallow, with the highest being 47.6% with 4% supplemental tallow. The proportion of C_{8:0} to C_{16:1} fatty acids (FA) decreased from 53.66% to 35.52%, whereas the concentration of C_{18:0} to C_{20:0} increased (44.93% to 62.84%) in the milk fat of buffaloes fed diets containing different levels of tallow. Gains in body weight (BW) were higher (P < 0.05) in buffaloes fed diets containing supplemental tallow as compared to those fed the control diet. This study suggests that tallow up to 6% of diet DM is a suitable fat supplement as an economical energy source for lactating buffaloes.

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Allelic Frequency Of Kappa-Casein And Beta-Lactoglobulin In Indian Crossbred (Bos Taurus X Bos Indicus) Dairy Bulls, Rajesh K. Patel, Jenabhai B. Chauhan, Krishna M. Singh, Kalpesh J. Soni Jan 2007

Allelic Frequency Of Kappa-Casein And Beta-Lactoglobulin In Indian Crossbred (Bos Taurus X Bos Indicus) Dairy Bulls, Rajesh K. Patel, Jenabhai B. Chauhan, Krishna M. Singh, Kalpesh J. Soni

Turkish Journal of Veterinary & Animal Sciences

A polymerase chain reaction - restriction fragment length polymorphism test was performed on DNA samples extracted from blood samples of 256 Holstein Friesian crossbred and 112 from Jersey crossbred bulls/bull calves to detect allelic frequency of the bovine kappa-casein and beta-lactoglobulin gene responsible for milk production traits. A 350 bp fragment of kappa-casein and a 247 bp fragment of beta-lactoglobulin were amplified and digested with Hinf I and Hae III restriction enzymes, respectively. In the study, 2 types of alleles A and B and 3 types of genotypes AA, BB, and AB for kappa-casein and beta-lactoglobulin were observed. The results …

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Left Abdominal Cryptorchidism In A Native Goat, Gülsüm Özyi̇ği̇t Jan 2007

Left Abdominal Cryptorchidism In A Native Goat, Gülsüm Özyi̇ği̇t

Turkish Journal of Veterinary & Animal Sciences

An 18-month-old native goat with 25 kg bodyweight submitted to the Department of Anatomy from a farm for use in student practicals was diagnosed with cryptorchidism. In macroscopical examination, the cryptorchid testis was near the left kidney. The cryptorchid testis was small, firm, and 31 x 30 mm in size and weighed 11 g, while the right testis, located in the scrotum, was 53 x 29 mm in size and weighed 37 g. Microscopically there was tubular hypoplasia and the capsule of the testis (tunica albuginea) was thicker in the left cryptorchid testis. Cryptorchidism is seen more often in horses, …

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Investigation Of Some Biochemical Parameters And The Antioxidant System In Calves With Dermatophytosis, Mahmut Karapehli̇van, Erdoğan Uzlu, Necati̇ Kaya, Orhan Kankavi̇, Kerem Ural, Mehmet Çi̇ti̇l Jan 2007

Investigation Of Some Biochemical Parameters And The Antioxidant System In Calves With Dermatophytosis, Mahmut Karapehli̇van, Erdoğan Uzlu, Necati̇ Kaya, Orhan Kankavi̇, Kerem Ural, Mehmet Çi̇ti̇l

Turkish Journal of Veterinary & Animal Sciences

The study included 10 clinically healthy calves (group 1) and 10 clinical cases of dermatophytosis (group 2). The influence of dermatophytosis on some serum biochemical profiles and the antioxidant system was investigated. Serum malondialdehyde (MDA), reduced glutathione (GSH), uric acid, nitric oxide (NO), total sialic acid (TSA), lipid-bound sialic acid (LBSA), total protein (TP), and albumin levels were measured in groups 1 and 2. Calves in group 2 had significantly higher (P < 0.001) MDA, NO, TSA, and LBSA levels, and a higher P < 0.01 TSA:TP ratio; however, GSH and uric acid levels were significantly lower (P < 0.001). There was no significant difference between the groups in total protein and albumin. These findings suggest a relationship between dermatophytosis, the antioxidant system, and lipid oxidation.

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Effects Of Ulva Rigida And Cystoseira Barbata Meals As A Feed Additive On Growth Performance, Feed Utilization, And Body Composition Of Nile Tilapia, Oreochromis Niloticus, Betül Kut Güroy, Şükran Ci̇ri̇k, Derya Güroy, Feyza Sanver, Ahmet Adem Teki̇nay Jan 2007

Effects Of Ulva Rigida And Cystoseira Barbata Meals As A Feed Additive On Growth Performance, Feed Utilization, And Body Composition Of Nile Tilapia, Oreochromis Niloticus, Betül Kut Güroy, Şükran Ci̇ri̇k, Derya Güroy, Feyza Sanver, Ahmet Adem Teki̇nay

Turkish Journal of Veterinary & Animal Sciences

In a 12-week feeding trial, the effect of 2 algae meals (Ulva rigida or Cystoseira barbata) on feed intake, growth, and nutrient utilization of juvenile Nile tilapia, Oreochromis niloticus, was investigated. This was the first attempt to utilize Cystoseira barbata as a feed supplement for Nile tilapia. The fish were fed to apparent satiation with formulated diets supplemented with various levels of Ulva meal (5%, 10%, or 15%) or Cystoseira meal (5%, 10%, or 15%). A diet without algae meal served as a control diet. The highest values for weight gain were for fish fed the 5% Cystoseira diet, control …

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Protein And Lipid Content And Fatty Acid Composition Of Anchovy Meal Produced In Turkey, Hülya Turan, Yalçin Kaya, İbrahi̇m Erkoyuncu Jan 2007

Protein And Lipid Content And Fatty Acid Composition Of Anchovy Meal Produced In Turkey, Hülya Turan, Yalçin Kaya, İbrahi̇m Erkoyuncu

Turkish Journal of Veterinary & Animal Sciences

The aim of this research was to determine the fatty acid composition and lipid and protein levels of anchovy meal produced during the commercial fishing period. The protein content was 74.69%, 76.17% and 74.40% in November, December and January, respectively. The lipid content ranged from 8.57% to 9.14% for anchovy meal produced during the fishing season. The total saturated fatty acid content was 33.25%, 33.46%, and 33.61% in November, December and January, respectively. Within the saturated fraction, the major fatty acid was palmitic acid (C_{16:0}), the content of which was 20.30%, 19.96% and 20.66%, respectively. The monounsaturated fatty acid contents …

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Biotyping And Serotyping Of Mannheimia (Pasteurella) Haemolytica Isolated From Lung Samples Of Slaughtered Sheep In The Van Region, Zi̇ya İlhan, İhsan Keleş Jan 2007

Biotyping And Serotyping Of Mannheimia (Pasteurella) Haemolytica Isolated From Lung Samples Of Slaughtered Sheep In The Van Region, Zi̇ya İlhan, İhsan Keleş

Turkish Journal of Veterinary & Animal Sciences

A total of 584 lung samples of slaughtered sheep having clinical symptoms of pneumonia were investigated microbiologically. Out of the 584 samples, 66 (11.3%) Mannheimia (Pasteurella) haemolytica strains were isolated on the basis of cultural, morphological and biochemical characteristics. Sixty-six isolates of M. haemolytica were biotyped by carbohydrate fermentation tests and serotyped by coagglutination and indirect haemagglutination (IHA) tests. Out of the 66 M. haemolytica strains, 57 (86.3%) were detected as biotype A, and 9 (13.6%) were biotype T. The 66 M. haemolytica isolates were serotyped as follows by coagglutination test: 13 (19.6%) A2, 11 (16.6%) A1, 9 (13.6%) A6, …

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Unusual Case Of Senecio Sceleratus (Ragwort) Poisoning In An Ostrich (Struthio Camelus) In Zimbabwe, Ross G. Cooper Jan 2007

Unusual Case Of Senecio Sceleratus (Ragwort) Poisoning In An Ostrich (Struthio Camelus) In Zimbabwe, Ross G. Cooper

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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The Soap Box Expanding Bear Populations Bring New Challenges To State Wildlife Agencies, Robert Southwick Jan 2007

The Soap Box Expanding Bear Populations Bring New Challenges To State Wildlife Agencies, Robert Southwick

Human–Wildlife Interactions

No abstract provided.

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Successful Use Of Neck Snares To Live-Capture Red Foxes, S. Nicole Frey, Michael R. Conover, Gary Cook Jan 2007

Successful Use Of Neck Snares To Live-Capture Red Foxes, S. Nicole Frey, Michael R. Conover, Gary Cook

Human–Wildlife Interactions

Box traps and foot-hold snares are common methods to live-capture study animals. However, these methods are frequently ineffective due to factors such as weather constraints, food availability, and target animal behavior. During a study of red fox (Vulpes vulpes) behavior, we examined the use of neck snares to live-trap study animals. We modified the neck snare using swivel cam-locks, deer stops to minimize damage to the animal. Additionally, we utilized our knowledge of red-fox behavior to set traps in a way that would reduce trauma to the captured animals. We snared 21 red foxes during the 3-year study …

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The Director's Desk Berryman Institute Addresses Feral Hog Problems, Bruce D. Leopold Jan 2007

The Director's Desk Berryman Institute Addresses Feral Hog Problems, Bruce D. Leopold

Human–Wildlife Interactions

No abstract provided.

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The Director's Desk Hogs Gone Wild, William H. Clay Jan 2007

The Director's Desk Hogs Gone Wild, William H. Clay

Human–Wildlife Interactions

No abstract provided.

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The Director's Desk The Role Of Knowledge In Developing People Skills, Ben C. West Jan 2007

The Director's Desk The Role Of Knowledge In Developing People Skills, Ben C. West

Human–Wildlife Interactions

No abstract provided.

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Student Voices Avoiding Conflicts Between Wildlife Professionals And Local Hunters Over Efforts To Eradicate Exotic Game Species, Hans Sin Jan 2007

Student Voices Avoiding Conflicts Between Wildlife Professionals And Local Hunters Over Efforts To Eradicate Exotic Game Species, Hans Sin

Human–Wildlife Interactions

No abstract provided.

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Influence Of Habitat Patch Characteristics On The Success Of Upland Duck Nests, Jaime E. Jiménez, Michael R. Conover, Raymond D. Dueser, Terry A. Messmer Jan 2007

Influence Of Habitat Patch Characteristics On The Success Of Upland Duck Nests, Jaime E. Jiménez, Michael R. Conover, Raymond D. Dueser, Terry A. Messmer

Human–Wildlife Interactions

When there is a rich guild of nest predators that use different modalities and techniques to locate hidden nests, we hypothesized that no habitat patch characteristic will consistently predict nest success, because if such a characteristic existed then predators would develop a search image based on it and use that characteristic to increase their hunting efficiency for nests. We tested this prediction in the Prairie Pothole region of North Dakota by characterizing the features of 16 habitat patches that contained >1,800 dabbling duck nests. Nest success was monitored during both the early and late nesting season over 2 years. Nest …

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The Value Of Oil Mallee Plantations And Revegetated Farm Land In The Southern Wheatbelt Region Of Western Australia For The Conservation Of The Western Pygmy Possum (Cercartetus Concinnus), Marie Short Jan 2007

The Value Of Oil Mallee Plantations And Revegetated Farm Land In The Southern Wheatbelt Region Of Western Australia For The Conservation Of The Western Pygmy Possum (Cercartetus Concinnus), Marie Short

Theses : Honours

Revegetation has the potential to enhance conservation of wildlife in rural environments, but few studies have tested whether the proposed benefits are realized. It is important to understand the role played by farm tree plantations in the landscape and how the potential biodiversity benefits may be enhanced without interfering with economic goals (Lamb, 1998). The adoption of oil mallee farming systems across the agricultural zone in south-west Western Australia is resulting in large areas of farmland being planted to native perennial tree species (Smith, 2004). While not planted for their conservation benefit, oil mallee systems may nonetheless enhance biodiversity. The …

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Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez Jan 2007

Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez

LSU Doctoral Dissertations

Investigations into the importance of the nuclear integrity of the donor cell prior to nuclear transfer (NT) are limited. In Experiment 1, the proliferative characteristics, chromosomal stability and level of histone phosphorylation in cell lines established by explants and enzymatic dissociation at different population doublings (PDs) were investigated. The cells divided at a constant rate and cell cycle length increased only at the end of the proliferative stage. The level of aneuploidies was high and remained elevated throughout the study independent of the technique used to establish the primary culture. High levels of multinucleated cells and abnormal spindle configurations were …

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Effects Of Cryopreservation And Constituents Of Semen Extenders On Mitochondrial Function Of Bull Spermatozoa, Abdulhakeem Hashim Eljarah Jan 2007

Effects Of Cryopreservation And Constituents Of Semen Extenders On Mitochondrial Function Of Bull Spermatozoa, Abdulhakeem Hashim Eljarah

LSU Doctoral Dissertations

This study investigated the effects of semen extender constituents and cryopreservation on bovine spermatozoal mitochondrial function. Three yearling Holstein bulls were used. Two ejaculates per bull were collected and pooled on a weekly basis for five weeks and extended in four treatments: 1) sodium citrate egg yolk extender with antibiotics (lincomycin, spectinomycin, gentamicin and tylosin); 2) ¡°1¡± with glycerol; 3) ¡°2¡± without antibiotics; and 4) ¡°1¡± without antibiotics. Each was divided into portions for analyses before freezing and after cryopreservation. The pre-freeze and thawed semen were transferred to a 37¡ãC water bath, the same assays were performed. In experiment 1, …

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Review Of The Crevalle Jacks, Caranx Hippos Complex (Teleostei: Carangidae), With A Description Of A New Species From West Africa, William F. Smith-Vaniz, Kent E. Carpenter Jan 2007

Review Of The Crevalle Jacks, Caranx Hippos Complex (Teleostei: Carangidae), With A Description Of A New Species From West Africa, William F. Smith-Vaniz, Kent E. Carpenter

Biological Sciences Faculty Publications

The Caranx hippos species complex comprises three extant species: crevalle jack (Caranx hippos) (Linnaeus, 1766) from both the western and eastern Atlantic oceans; Pacific crevalle jack (Caranx caninus) Günther,1868 from the eastern Pacific Ocean; and longfin crevalle jack (Caranx fischeri) new species, from the eastern Atlantic, including the Mediterranean Sea and Ascension Island. Adults of all three species are superficially similar with a black blotch on the lower half of the pectoral fin, a black spot on the upper margin of opercle, one or two pairs of enlarged symphyseal canines on the lower jaw, …

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Dietary Sequestration Of Defensive Steroids In Nuchal Glands Of The Asian Snake Rhabdophis Tigrinus, Deborah A. Hutchinson, Akira Mori, Alan H. Savitsky, Gordon M. Burghardt, Xiaogang Wu, Jerrold Meinwald, Frank C, Schroeder Jan 2007

Dietary Sequestration Of Defensive Steroids In Nuchal Glands Of The Asian Snake Rhabdophis Tigrinus, Deborah A. Hutchinson, Akira Mori, Alan H. Savitsky, Gordon M. Burghardt, Xiaogang Wu, Jerrold Meinwald, Frank C, Schroeder

Biological Sciences Faculty Publications

The Asian snake Rhabdophis tigrinus possesses specialized defensive glands on its neck that contain steroidal toxins known as bufadienolides. We hypothesized that R. tigrinus does not synthesize these defensive steroids but instead sequesters the toxins from toads it consumes as prey. To test this hypothesis, we conducted chemical analyses on the glandular fluid from snakes collected in toad-free and toad-present localities. We also performed feeding experiments in which hatchling R. tigrinus were reared on controlled diets that either included or lacked toads. We demonstrate that the cardiotonic steroids in the nuchal glands of R. tigrinus are obtained from dietary toads. …

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Diluents For Cryopreservation Of Semen From Non-Woolly Llamas (Lama Glama), Franz Nicolas Bustos Fernández Jan 2007

Diluents For Cryopreservation Of Semen From Non-Woolly Llamas (Lama Glama), Franz Nicolas Bustos Fernández

Theses and Dissertations

The collection and preservation of llama semen is not a standardized procedure as it is in cattle. It has a number of complications that are mainly associated with the characteristics of the semen. In order to contribute to the knowledge of reproductive biology, we decided to evaluate the behavior of llama semen in relation to the different diluters in this study. This study was done at the National Germplasm Bank for Camelids which is part of the Ministry of Rural Development of Agriculture and Environment. The Ministry is located in the Agriculture Experiment Center of Condoriri which belongs to the …

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