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2005

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Articles 811 - 835 of 835

Full-Text Articles in Animal Sciences

Evaluation Of The Corpus Luteum Size Throughout The Cycle By Ultrasonography And Progesterone Assay In Cows, Vi̇sal Kayacik, M. Rifat Salmanoğlu, Bülent Polat, Abdurrahman Özlüer Jan 2005

Evaluation Of The Corpus Luteum Size Throughout The Cycle By Ultrasonography And Progesterone Assay In Cows, Vi̇sal Kayacik, M. Rifat Salmanoğlu, Bülent Polat, Abdurrahman Özlüer

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was to assess the correlation between the sizes of the corpus luteum (CL) with or without a cavity throughout the estrous cycle and progesterone (P_4) levels in cows. Images of the CL were obtained by ultrasonography at intervals of 24 h in 10 Holstein cows after their first postpartum estrus. Progesterone levels were measured by radioimmunassay (RIA). The duration of the estrous cycle was determined to be short (13 days), normal (approximately 22 days) and long (30 days) in 1, 7, and 2 cows, respectively. Measurements were evaluated based on the established cycle durations. The …

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Massive Cryptosporidium Parvum Infection Associated With An Outbreak Of Diarrhoea In Neonatal Goat Kids, Ferda Sevi̇nç, Ati̇lla Şi̇mşek, Uğur Uslu Jan 2005

Massive Cryptosporidium Parvum Infection Associated With An Outbreak Of Diarrhoea In Neonatal Goat Kids, Ferda Sevi̇nç, Ati̇lla Şi̇mşek, Uğur Uslu

Turkish Journal of Veterinary & Animal Sciences

There was a massive outbreak of watery diarrhoea in kids aged 5 to 15 days in a goat herd in Gönen district of Isparta province in Turkey in May 2003. The presence of Cryptosporidium parvum was investigated in the faeces of 130 diarrhoeic kids and 3 dead kids in this herd. All of the faecal samples were also examined for rotavirus and coronavirus. C. parvum were detected in all of the faecal specimens. Coronavirus and rotavirus were not detected in any of the animals.

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Investigations On Drift-Net Fishery For Swordfish (Xiphias Gladius L.) In The Aegean Sea, Okan Akyol, Mustafa Erdem, Vahdet Ünal, Tevfi̇k Ceyhan Jan 2005

Investigations On Drift-Net Fishery For Swordfish (Xiphias Gladius L.) In The Aegean Sea, Okan Akyol, Mustafa Erdem, Vahdet Ünal, Tevfi̇k Ceyhan

Turkish Journal of Veterinary & Animal Sciences

This study reports an investigation carried out on swordfish drift-net fishery at 2 main swordfish fishing ports, Sivrice (northern) and Fethiye (southern), in the Aegean Sea in 2001-2002. Forty-five boats are used for swordfish fishing in the Turkish Aegean Sea. In these major areas, the highest number of boats 6-10 m in length and 11.5-80 hp in engine power was in the Sivrice area, while the highest number 10-14 m in length and 85-135 hp in engine power was in the Fethiye area. Almost all of the boats were made of wood. Swordfish drift-netting accurs in practice between Sivrice and …

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Pathological Findings In Rainbow Trout (Oncorhynchus Mykiss Walbaum, 1792) Experimentally Infected With Yersinia Ruckeri, Hamdi̇ Avci, Serap Bi̇ri̇nci̇oğlu Jan 2005

Pathological Findings In Rainbow Trout (Oncorhynchus Mykiss Walbaum, 1792) Experimentally Infected With Yersinia Ruckeri, Hamdi̇ Avci, Serap Bi̇ri̇nci̇oğlu

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to evaluate the pathological findings in rainbow trout experimentally infected with Yersinia ruckeri. For this purpose, 42 [1 control group (10 fish) and 1 experimental group (32 fish)] of rainbow trout were used. Yersinia ruckeri serotype I (R0072) at a concentration of 3 x 10^6 cfu/ml (0.1 ml per fish) was intraperitoneally injected into the experimental group, whereas the control group was subjected to the same volume of sterile saline. Following the intraperitoneal injection, between 4 and 26 days, fish that died due to natural infection and those killed were necropsied and macroscopic and …

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The Effects Of Ligula Intestinalis Plerocercoids On The Growth Features Of Tench, Tinca Tinca, Mehmet Borga Ergönül, Ahmet Altindağ Jan 2005

The Effects Of Ligula Intestinalis Plerocercoids On The Growth Features Of Tench, Tinca Tinca, Mehmet Borga Ergönül, Ahmet Altindağ

Turkish Journal of Veterinary & Animal Sciences

A total of 272 specimens of tench (Tinca tinca L., 1758) caught in Lake Mogan (Ankara) were examined for the presence of the plerocercoids of Ligula intestinalis, and growth parameters such as age composition, age-length, age-weight and weight-length relationship and condition factor were calculated seperately for both infected and non-infected fish. The only marked difference was observed in value b between infected (2.745) and non-infected (3.014) fish.

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Using Ammonia Nitrogen Excretion Rates As An Index For Evaluating Protein Quality Of Prawns In Turbot (Psetta Maeotica) Nutrition, Murat Yi̇ği̇t, Sebahatti̇n Ergün, Ali̇ Türker, Burcu Karaali̇, Sabri̇ Bi̇lgi̇n Jan 2005

Using Ammonia Nitrogen Excretion Rates As An Index For Evaluating Protein Quality Of Prawns In Turbot (Psetta Maeotica) Nutrition, Murat Yi̇ği̇t, Sebahatti̇n Ergün, Ali̇ Türker, Burcu Karaali̇, Sabri̇ Bi̇lgi̇n

Turkish Journal of Veterinary & Animal Sciences

Total ammonia nitrogen excretion rates were measured in Black Sea turbot (averaging 88.8 g) to compare the protein quality of prawns, the natural food of turbot, with that of the protein source commonly used in the feed industry, i.e. anchovy meal. Two different prawn species (Baltic prawn, Palaemon adspersus, and rockpool prawn, Palaemon elegans) were offered to fish as wet feed at 17.5 ± 0.5 ºC and a salinity of 17 ppt. Furthermore, for determination of the effects of wet feed and dry feed on the peak times of ammonia nitrogen excretion rates, another experimental group of fish was offered …

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Pathological And Phytochemical Investigation Of Neuronal Lipofuscinosis Caused By Asphodelus Aestivus In Sheep: I. Pathological Findings, Serap Bi̇ri̇nci̇oğlu, İhsan Çaliş, Hamdi̇ Avci, Bengi̇ Baba Erdağ Jan 2005

Pathological And Phytochemical Investigation Of Neuronal Lipofuscinosis Caused By Asphodelus Aestivus In Sheep: I. Pathological Findings, Serap Bi̇ri̇nci̇oğlu, İhsan Çaliş, Hamdi̇ Avci, Bengi̇ Baba Erdağ

Turkish Journal of Veterinary & Animal Sciences

A severe neurologic syndrome accompained by intense neuronal pigmentation was described in sheep exposed to Asphodelus aestivus in Turkey. The clinical signs were similar in all the sheep affected, and the condition was usually characterized by progressive paresis, ataxia and convulsion. At necropsy, yellowish-brown discoloration in the brain and spinal cord were consistently seen. A microscopical examination revealed abundant yellowish-brown pigment granules in the cytoplasm of the larger neurons. Similar pigment granules were also observed in extraneuronal tissues. The histochemical features of the pigments were consistent with those of lipofuscin. The available evidence suggests that the tissue pigmentation was related …

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A Study On The Presence Of Leucocytozoonosis In Wild Birds Of Burdur District, Özlem Özmen, Mehmet Haligür, Bayram Ali̇ Yukari Jan 2005

A Study On The Presence Of Leucocytozoonosis In Wild Birds Of Burdur District, Özlem Özmen, Mehmet Haligür, Bayram Ali̇ Yukari

Turkish Journal of Veterinary & Animal Sciences

From 2000 to 2004, 53 wild birds (16 pigeons, 16 quails, 10 pheasants, 4 partridges, 3 stock doves, and 1 ibis, peacock, owl chick and falcon) were examined grossly and microscopically at the Department of Pathology, Faculty of Veterinary Medicine, University of Akdeniz. Thirty-seven of these birds were dead. Blood samples were taken from the 16 live birds before euthanasia. Tissue samples were also taken for histopathological examination during the necropsies. Leucocytozoon marchouxi was diagnosed in 5 pigeons during the microscopic examinations of blood samples and tissue sections, whereas 1 owl chick died from acute severe L. ziemanni infection.

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Effect Of Dietary Hazelnut Meal Supplementation On The Meat Composition Of Quails, Suzan Yalçin, Fatma Oğuz, Saki̇ne Yalçin Jan 2005

Effect Of Dietary Hazelnut Meal Supplementation On The Meat Composition Of Quails, Suzan Yalçin, Fatma Oğuz, Saki̇ne Yalçin

Turkish Journal of Veterinary & Animal Sciences

This experiment was conducted to study the effects of dietary hazelnut meal supplementation on the meat composition of quails. A total of 312 one-day-old Japanese quail chicks (Coturnix coturnix japonica) were divided into 6 equal groups. Six different levels of hazelnut meal (0%, 10%, 15%, 20%, 25% and 30%) were included in their diets. At the end of the 5-week experiment, 12 quails (6 male and 6 female) were slaughtered from each group at random. The levels of dry matter, protein, fat, ash and some mineral elements of the meat were determined. The values of protein, ash, energy, calcium, phosphorus, …

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Isolation And Serotyping Of Ornithobacterium Rhinotracheale From Poultry, Süheyla Türkyilmaz Jan 2005

Isolation And Serotyping Of Ornithobacterium Rhinotracheale From Poultry, Süheyla Türkyilmaz

Turkish Journal of Veterinary & Animal Sciences

The aims of this study were the isolation of Ornithobacterium rhinotracheale from poultry and serotyping of the isolates and field sera by agar gel precipitation (AGP) test. For the isolation 257 chickens and 214 turkeys were used and for the AGP test 333 chickens and 250 turkeys were used. O. rhinotracheale was isolated from the sinus discharge of 3 broiler breeders at 37, 42 and 46 weeks of age. It was determined that 3 isolates were O. rhinotracheale serotype I having cross reactions with serotype L. Of 333 sera examined 86 were found seropositive in chickens by AGP test. It …

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Live Weights Of Kıvırcık Ewes And Lambs In Some Periods Under Extensive Management Conditions, İbrahi̇m Cemal, Orhan Karaca, Tufan Altin, Mustafa Kaymakçi Jan 2005

Live Weights Of Kıvırcık Ewes And Lambs In Some Periods Under Extensive Management Conditions, İbrahi̇m Cemal, Orhan Karaca, Tufan Altin, Mustafa Kaymakçi

Turkish Journal of Veterinary & Animal Sciences

The aims of the present study were to evaluate the growth characteristics of Kıvırcık sheep and describe non-genetic factors influencing their expression. Data were collected from 6 flocks including a nucleus flock and 5 breeders’ flocks (2 in mountainous and 3 in lowland villages). Flocks raised in extensive conditions were kept in pastures throughout the year. The body weight of ewes at parturition and the birth and weaning weight of lambs were recorded during 2 lambing seasons (1999-2000 and 2000-2001). The least-squares mean of ewe body weight at parturition was 42.2 kg. Lambing season, flock and age of ewe were …

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Faecal Carriage Of Listeria Monocytogenes In Stray Dogs In Bursa Province, Turkey, A. Levent Kocabiyik, Cengi̇z Çeti̇n, Cüneyt Özakin Jan 2005

Faecal Carriage Of Listeria Monocytogenes In Stray Dogs In Bursa Province, Turkey, A. Levent Kocabiyik, Cengi̇z Çeti̇n, Cüneyt Özakin

Turkish Journal of Veterinary & Animal Sciences

The faecal carriage rate of Listeria monocytogenes in stray dogs in Bursa province, Turkey, was determined from 82 faecal samples by bacteriological methods. L. monocytogenes was isolated from only one (1.22%) of the samples examined. The isolate was serotyped as 1/2b. It was concluded that stray dogs could be a reservoir of the organism as well as a source of human listeriosis in Turkey. This is the first report on the isolation of L. monocytogenes from a dog in this country.

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Habitat Patch Occupancy Dynamics Of Glaucous-Winged Gulls (Larus Glaucescens) I: A Discrete-Time Model, Karl W. Phillips, Smruti P. Damania, James L. Hayward, Shandelle M. Henson, Clara J. Logan Jan 2005

Habitat Patch Occupancy Dynamics Of Glaucous-Winged Gulls (Larus Glaucescens) I: A Discrete-Time Model, Karl W. Phillips, Smruti P. Damania, James L. Hayward, Shandelle M. Henson, Clara J. Logan

Faculty Publications

Diurnal habitat occupancy dynamics of Glaucous-winged Gulls were evaluated in a system of six habitats on and around Protection Island, Washington. Data were collected on the rates of gull movement between habitat patches, and from these data the probabilities of transitions between habitats were estimated as functions of tide height and time of day. A discrete-time matrix model based on the transition probabilities was used to generate habitat occupancy predictions, which were then compared to hourly census data. All model parameters were estimated directly from data rather than through model fitting. The model made reasonable predictions for two of the …

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Effectiveness Of Homeopathy For The Treatment Of Pseudopregnancy In Bitches, Ni̇hat Özyurtlu, Erol Alaçam Jan 2005

Effectiveness Of Homeopathy For The Treatment Of Pseudopregnancy In Bitches, Ni̇hat Özyurtlu, Erol Alaçam

Turkish Journal of Veterinary & Animal Sciences

The effects of homeopathy on pseudopregnancy in bitches were investigated. Thirty clinically pseudopregnant bitches were used. Fifteen dogs were treated by homeopathy and the remaining animals received placebo treatment. Thuja D30 globules, which contain Thuja Occidentalis, were given orally (8 globules, 3 times a day) as a homeopathic agent. Clinical response was evaluated every 5 days. Maximum duration of the treatment was 3 weeks. Physical changes in mammary glands and behavioral response were evaluated during the treatment. Animals were classified as +1, +2 and +3 according to physical changes in the mammary glands. In addition to qualitative examination, longitudinal and …

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Efficacy Of Tribasic Copper Chloride (Tbcc) To Reduce The Harmful Effects Of Aflatoxin In Broilers, Sefa Çeli̇k, Zeynep Erdoğan, Suat Erdoğan, Ramazan Bal Jan 2005

Efficacy Of Tribasic Copper Chloride (Tbcc) To Reduce The Harmful Effects Of Aflatoxin In Broilers, Sefa Çeli̇k, Zeynep Erdoğan, Suat Erdoğan, Ramazan Bal

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to evaluate the effects of copper as tribasic copper chloride on serum biochemical values and growth performance of broilers intoxicated with aflatoxins. Aflatoxins significantly decreased the level of albumin (P < 0.001), total protein (P < 0.001) and total cholesterol (P < 0.01), and increased the activities of alanine amino transferase, L-lactic dehydrogenase and alkaline phosphatase (P £ 0.001) in serum. These AF-induced changes were significantly improved by adding tribasic copper chloride to the diet. The decrease in serum copper concentration induced by aflatoxin was reversed by tribasic copper chloride. Serum zinc concentrations were not affected in tribasic copper chloride and tribasic copper chloride plus aflatoxin groups. Serum iron levels decreased in all the treatment groups significantly (P < 0.05). Aflatoxins caused significant decrease in the body weight gain and significant increase in the feed conversion ratio. Adverse effects of aflatoxins on feed conversion ratio were reversed by tribasic copper chloride supplementation to the diet. It is suggested that tribasic copper chloride might be used for reducing the adverse effects of aflatoxins in broiler production.

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Some Histochemical Properties Of The Ceruminous Glands In The Meatus Acusticus Externus In Cats And Dogs, Zi̇ya Özcan Jan 2005

Some Histochemical Properties Of The Ceruminous Glands In The Meatus Acusticus Externus In Cats And Dogs, Zi̇ya Özcan

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to determine some histochemical properties of the ceruminous glands located in the meatus acusticus externus in cats and dogs. Ten cats and 10 dogs of various breeds were used as the study materials. To determine the properties of the secretions of the ceruminous glands in the meatus acusticus externus of cats and dogs, the periodic acid Schiff (PAS) stain was used for neutral mucosubstances and glycogen, while the Alcian blue stain (pH 2.5) was applied for the presence of acidic mucosubstances. The diastase reaction was applied to confirm the presence of glycogen. In dogs, positive staining …

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A Serological Evidence Of Minute Virus Of Canines (Mvc; Canine Parvovirus Type-1) In Dogs In Turkey, Serhat Torun, Zeki̇ Yilmaz, Annamaria Pratelli Jan 2005

A Serological Evidence Of Minute Virus Of Canines (Mvc; Canine Parvovirus Type-1) In Dogs In Turkey, Serhat Torun, Zeki̇ Yilmaz, Annamaria Pratelli

Turkish Journal of Veterinary & Animal Sciences

Serological evidence of minute virus of canines (MVC; canine parvovirus type-1) was investigated for the first time in dogs in Turkey. Dogs with various clinical symptoms including primarily gastrointestinal and respiratory system disorders were used. Immunofluorescence (IF) test was performed to determine whether anti-MVC antibodies were present in the serum samples. MVC antibodies were found in 18 out of 100 dogs (18.0%) tested, indicating that MVC is present in dogs in Turkey. The present result is additional evidence for the worldwide distribution of MVC.

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Vaccine-Associated Feline Sarcoma (Vafs) With Multiple Recurrences In A Turkish Van Cat, Yilmaz Aydin, Babür Bi̇li̇r Jan 2005

Vaccine-Associated Feline Sarcoma (Vafs) With Multiple Recurrences In A Turkish Van Cat, Yilmaz Aydin, Babür Bi̇li̇r

Turkish Journal of Veterinary & Animal Sciences

Vaccine-associated feline sarcoma (VAFS) with multiple recurrences was diagnosed in the specimens at the injection site of a Turkish Van cat that had been vaccinated four months previously. The original tumor consisted of two compartments each 2.5 cm and 3.5 cm in diameter. It recurred five times following surgery and local recurrences necessitated five more radical resections within two years. Euthanasia was performed when pleural effusion developed, but evidence of metastatic disease was not observed. This article reports the first case of a vaccine-associated feline sarcoma in a Turkish Van cat clinically diagnosed as prominent evidence of postvaccinal sarcoma from …

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Aspergillosis And Gastric Impaction In An Ostrich, Azi̇z Arda Sancak, Jale Paracikoğlu Jan 2005

Aspergillosis And Gastric Impaction In An Ostrich, Azi̇z Arda Sancak, Jale Paracikoğlu

Turkish Journal of Veterinary & Animal Sciences

It is inevitable to encounter many diseases of ostriches in Turkey as a consequence of the rapid expansion of ostrich farming and flocks in this country. Aspergillus fumigatus was isolated from the lungs and air sacs of a 3-month-old, male, blue-neck ostrich. In postmortem examination, the ingestion of a large amount of gravel was noted. The accumulated gravel had led to an occlusion of the passage between the proventriculus and gizzard. This work appears to be the first report of aspergillosis and gastric impaction developing together and leading to death in an ostrich.

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Abortion Due To Streptococcus Equi Subspecies Zooepidemicus In A Mare, A. Levent Kocabiyik, Gürsel Sönmez, Mi̇hri̇ban Ülgen, Cüneyt Özakin, Esra Kocakaya, Ayli̇n Alasonyalilar Jan 2005

Abortion Due To Streptococcus Equi Subspecies Zooepidemicus In A Mare, A. Levent Kocabiyik, Gürsel Sönmez, Mi̇hri̇ban Ülgen, Cüneyt Özakin, Esra Kocakaya, Ayli̇n Alasonyalilar

Turkish Journal of Veterinary & Animal Sciences

The organs of an aborted equine fetus were examined histopathologically and microbiologically. Diffuse, mild cellular infiltration of neutrophils, lymphocytes and plasma cells was observed in the lamina propria of the intestine. In addition, bacterial colonies were seen in the intestinal content, wall of intestine and liver. Streptococcus equi subsp. zooepidemicus was isolated in pure culture from all organs. This is the first report of the isolation of S. equi subsp. zooepidemicus from an aborted equine fetus in Turkey.

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Unilateral Uterine Prolapse In A Cat, Ni̇hat Özyurtlu, Duygu Kaya Jan 2005

Unilateral Uterine Prolapse In A Cat, Ni̇hat Özyurtlu, Duygu Kaya

Turkish Journal of Veterinary & Animal Sciences

Unilateral uterine prolapse that occurred immediately after parturition was diagnosed in a 15-month-old cat brought to the clinics of the Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Ankara University. Depending on clinical and ultrasonographic examination findings, the other uterine horn was though to be invaginated into the prolapsed horn. To purpose of treatment, ovariohysterectomy was performed. During laparotomy, the non-pregnant right uterine horn was seen to be invaginated into the pregnant uterine horn.

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Effects Of Human Disturbances On The Behavior Of Wintering Ducks, Melissa L. Pease, Robert K. Rose, Mark J. Butler Jan 2005

Effects Of Human Disturbances On The Behavior Of Wintering Ducks, Melissa L. Pease, Robert K. Rose, Mark J. Butler

Biological Sciences Faculty Publications

Human activity causes wintering waterfowl to expend energy to avoid humans at a time in their annual cycle when energy conservation is important to survival, migration, and breeding reserves. Understanding the effects of recreational activities on waterfowl is important to managing natural resource areas where migratory birds depend on wetland habitat for resting and feeding. We investigated responses of 7 species of dabbling ducks to 5 different experimental human activities, (a pedestrian, a bicyclist, a truck traveling at 2 different speeds, and an electric passenger tram). Responses of ducks depended on type of disturbance, species, and distance from disturbances. Most …

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New Species Of Amphipod Crustaceans In The Genera Tegano And Melita (Hadzioidea : Melitidae) From Subterranean Groundwaters In Guam, Palau, And The Philippines, Thomas R. Sawicki, John R. Holsinger, Thomas M. Iliffe Jan 2005

New Species Of Amphipod Crustaceans In The Genera Tegano And Melita (Hadzioidea : Melitidae) From Subterranean Groundwaters In Guam, Palau, And The Philippines, Thomas R. Sawicki, John R. Holsinger, Thomas M. Iliffe

Biological Sciences Faculty Publications

Three new species of Tegano are described, two from caves on Panglao Island, Bohol, Philippines, and one from a cave on Peleliu Island, Palau. Sriha vagabunda from Sri Lanka is reassigned to the genus Tegano based primarily on the high degree of similarity between Sriha vagabunda and species of Tegano and the fact that these species exhibit a great deal of variation in the reduction of the mandibular palp. A new species of Melita with characters intermediate between those defining the genera Abludomelita, Melita, and Paraniphargus is described from a spring on Guam. The characters of the new …

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Mechanical Properties Of The Integument Of The Common Gartersnake, Thamnophis Sirtalis (Serpentes: Colubridae), Gabriel Rivera, Alan H. Savitzky, Jeffrey A. Hinkley Jan 2005

Mechanical Properties Of The Integument Of The Common Gartersnake, Thamnophis Sirtalis (Serpentes: Colubridae), Gabriel Rivera, Alan H. Savitzky, Jeffrey A. Hinkley

Biological Sciences Faculty Publications

The evolution of the ophidian feeding mechanism has involved substantial morphological restructuring associated with the ability to ingest relatively large prey. Previous studies examining the morphological consequences of macrophagy have concentrated on modifications of the skull and cephalic musculature. Although it is evident that macrophagy requires highly compliant skin, the mechanical properties of the ophidian integument have received limited attention, particularly in the context of feeding. We examined mechanical properties of skin along the body axis in Thamnophis sirtalis (Colubridae). Data were collected from tensile tests and were analyzed using a multivariate analysis of variance (MANOVA) and post-hoc multiple comparison …

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Effect Of Dietary Fatty Acid Composition On Depot Fat And Exercise Performance In A Migrating Songbird, The Red-Eyed Vireo, Barbara J. Pierce, Scott R. Mcwilliams, Timothy P. O'Connor, Allen R. Place, Christopher G. Guglielmo Jan 2005

Effect Of Dietary Fatty Acid Composition On Depot Fat And Exercise Performance In A Migrating Songbird, The Red-Eyed Vireo, Barbara J. Pierce, Scott R. Mcwilliams, Timothy P. O'Connor, Allen R. Place, Christopher G. Guglielmo

Biology Faculty Publications

Most migrating birds accumulate lipid stores as their primary source of energy for fueling long distance flights. Lipid stores of birds during migration are composed of mostly unsaturated fatty acids; whether such a fatty acid composition enhances exercise performance of birds is unknown. We tested this hypothesis by measuring metabolic rate at rest and during intense exercise in two groups of red-eyed vireos, a long-distance migratory passerine, fed either a diet containing 82% unsaturated fat (82%U), or one containing 58% unsaturated fat (58%U). Vireos fed the 82%U diet had fat stores containing (77%) unsaturated fatty acids, whereas vireos fed the …

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