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Articles 15211 - 15240 of 21429

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Vascular Endothelial Growth Factor (Vegf) Isoforms May Regulate Sex-Specific Vascular Development, Cord Formation And Follicle Progression In Developing Gonads, Andrea S. Cupp, Rebecca C. Bott, Renee M. Pohlmann, Robin A. Ten Broeck, Debra T. Clopton Jan 2008

Vascular Endothelial Growth Factor (Vegf) Isoforms May Regulate Sex-Specific Vascular Development, Cord Formation And Follicle Progression In Developing Gonads, Andrea S. Cupp, Rebecca C. Bott, Renee M. Pohlmann, Robin A. Ten Broeck, Debra T. Clopton

Department of Animal Science: Faculty Publications

The ratio of VEGF angiogenic to anti-angiogenic isoforms appears to determine different biological functions in reproduction. Reduced amounts of angiogenic VEGF isoforms inhibit testis sex-specific vasculature and normal cord formation in organ cultures while reduction of inhibitory isoforms increased vasculature and perturbed cords. In the female, using peri-natal ovarian cultures, inhibition of angiogenic VEGFisoforms reduced vascular development and inhibited follicle progression while conversely reductions in inhibitory isoforms or increases in angiogenic isoforms enhanced follicle development. Thus, regulation of the Vegfa gene to produce angiogenic or anti-angiogenic isoforms may be a mechanism to alter sex-specific vascular development, formation of seminiferous cords, …

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Differential Expression In Lung And Bronchial Lymph Node Of Pigs With High And Low Responses To Infection With Porcine Reproductive And Respiratory Syndrome Virus, J. S. Bates, D. B. Petry, J. Eudy, L. Bough, Rodger K. Johnson Jan 2008

Differential Expression In Lung And Bronchial Lymph Node Of Pigs With High And Low Responses To Infection With Porcine Reproductive And Respiratory Syndrome Virus, J. S. Bates, D. B. Petry, J. Eudy, L. Bough, Rodger K. Johnson

Department of Animal Science: Faculty Publications

One hundred Hampshire × Duroc crossbred pigs and 100 Nebraska Index line pigs were infected with porcine reproductive and respiratory syndrome virus (PRRSV) and evaluated for resistance and susceptibility. Controls (100/line) were uninfected littermates to infected pigs. Viremia (V), BW change (WTΔ), and rectal temperature at 0, 4, 7, and 14 d postinfection were recorded. Lung, bronchial lymph node (BLN), and blood tissue were collected at necropsy (14 d postinfection). Infected pigs were classified as low or high responders to PRRSV based on the first principal component from principal component analyses of all variables. Low responders to PRRSV (low PRRSV …

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Board-Invited Review: Use Of Distillers By-Products In The Beef Cattle Feeding Industry, Terry J. Klopfenstein, Galen E. Erickson, Virgil R. Bremer Jan 2008

Board-Invited Review: Use Of Distillers By-Products In The Beef Cattle Feeding Industry, Terry J. Klopfenstein, Galen E. Erickson, Virgil R. Bremer

Department of Animal Science: Faculty Publications

The ethanol industry is expanding rapidly. This expansion in production of renewable energy also increases production of by-products. These byproducts, primarily distillers grains plus solubles (DGS), are utilized very efficiently by ruminants. When the starch in corn is fermented to produce ethanol, the remaining nutrients (protein, fat, fiber) are concentrated about 3-fold. Whereas DGS is an excellent protein source for ruminants, the large supply and the price relative to corn make DGS an attractive energy source as well. This is especially important with reduced availability and higher price of corn because of demand by the ethanol industry. A meta-analysis of …

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Amphibian, Reptile, And Small Mammal Associates Of Ozark Pocket Gopher Habitat In Izard County, Arkansas, M. Connior, I. Guenther, Thomas S. Risch, Stanley E. Trauth Jan 2008

Amphibian, Reptile, And Small Mammal Associates Of Ozark Pocket Gopher Habitat In Izard County, Arkansas, M. Connior, I. Guenther, Thomas S. Risch, Stanley E. Trauth

Journal of the Arkansas Academy of Science

We conducted a study of the amphibian, reptile, and small mammal community assemblage of Ozark pocket gopher (Geomys bursarius ozarkensis) habitat in north-central Arkansas. We used 2 methods to capture individuals: hand capture and drift fences. During the study, we captured and marked a total of 9 anuran, 4 salamander, 5 lizard, 3 turtle, 16 snake, and 8 small mammal species exclusive of pocket gophers. We found one hatchling three-toed box turtle (Terrapene carolina triunguis) and one rough earth snake (Virginia striatula) inside a pocket gopher burrow and mound, respectively. Additionally, we witnessed both eastern racers (Coluber constrictor) and eastern …

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Resistance Training And Bone Mineral Density During Growth, M. Z. Smith, B. M. Goettsch, R. D. Van Ramshorst, J. A. O'Brien, S. V. Jaque, Ken D. Sumida Jan 2008

Resistance Training And Bone Mineral Density During Growth, M. Z. Smith, B. M. Goettsch, R. D. Van Ramshorst, J. A. O'Brien, S. V. Jaque, Ken D. Sumida

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

This study examined the efficacy of two different resistance training programs in enhancing bone modeling and bone mineral density (BMD) in maturating rats. One exercise mode involved lifting a lighter weight with more repetitions (LI), while the other regimen involved lifting a heavier weight with fewer repetitions (HI) where the total volume of work between exercise programs was equivalent by design. Twenty-three male rats were randomly divided into control (Con, n = 8), LI (n = 7), and HI (n = 8) groups. The LI and HI groups were conditioned to climb a vertical ladder with weights appended to their …

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Lakes And Forests As Determinants Of Downstream Nutrient Concentrations In Small Mountain Watersheds, P. D. Brown, Wayne A. Wurtsbaugh, K. Nydick Jan 2008

Lakes And Forests As Determinants Of Downstream Nutrient Concentrations In Small Mountain Watersheds, P. D. Brown, Wayne A. Wurtsbaugh, K. Nydick

Watershed Sciences Faculty Publications

Lakes are dynamic processors of nutrients and may hold an active role in modifying the water chemistry of stream systems. In this study, we examine the influence of lakes and an important terrestrial component—forest cover—on the nutrient levels of stream water in 11 Rocky Mountain (Idaho) watersheds. Water samples were collected from the inflow and outflow of lakes with varying amounts of upstream lakes and forested area during spring runoff and summer base flow. During base flow, mean total nitrogen concentrations at the inflow of final lakes were significantly related to relative upstream lake area, increasing from 34 to 103 …

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Effects Of Alcohol And Training On Exercise Performance And Muscle Recovery Biochemistry In The Brown Anole (Anolis Sagrei), Maryclaire Mcgovern Jan 2008

Effects Of Alcohol And Training On Exercise Performance And Muscle Recovery Biochemistry In The Brown Anole (Anolis Sagrei), Maryclaire Mcgovern

Honors Theses

Contrary to previous research, training may improve exercise performance in a lizard, the brown anole. A brief, two-week training period resulted in increased performance speed and distance before exhaustion in trained lizards. Trained lizards were also able to more effectively use leg glycogen stores, however each of these improvements were not found in lizards treated with alcohol. Liver glycogen concentrations were also lower in alcohol-treated lizards, and patterns of liver glycogen concentrations during recovery indicate some hepatic lactate gluconeogenesis.

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Is The Anti-Psychotic, 10-(3-(Dimethylamino)Propyl)Phenothiazine (Promazine), A Dangerous Drug With Which To Treatsars Infections? Efficacy Of Promazine On Sars-Cov Replication In A Mouse Model, Dale L. Barnard, C. W. Day, K. Bailey, M. Heiner, R. Montgomery, L. Lauridsen, K. H. Jung, P. K. Chan, J. K. Li, R. W. Sidwell Jan 2008

Is The Anti-Psychotic, 10-(3-(Dimethylamino)Propyl)Phenothiazine (Promazine), A Dangerous Drug With Which To Treatsars Infections? Efficacy Of Promazine On Sars-Cov Replication In A Mouse Model, Dale L. Barnard, C. W. Day, K. Bailey, M. Heiner, R. Montgomery, L. Lauridsen, K. H. Jung, P. K. Chan, J. K. Li, R. W. Sidwell

Animal, Dairy, and Veterinary Science Faculty Publications

Phenothiazine and derivatives were tested for inhibition of SARS-CoV replication. Phenothiazine slightly inhibited SARS-CoV replication in a neutral red (NR) uptake assay. Adding a propylamino group to give promazine reduced virus yields (VYR assay) with an EC90 = 8.3 ± 2.8 μM, but without selectivity. Various substitutions in the basic phenothiazine structure did not promote efficacy. Phenazine ethosulfate was the most potent compound by VYR assay (EC90 = 6.1 ± 4.3 μM). All compounds were toxic (IC50 = 6.6–74.5 μM) except for phenoxathiin (IC50 = 858 ± 208 μM) and 10-(alpha-diethylamino-propionyl) phenothiazine·HCl (IC50 = 195 ± 71.2 μM). Consequently, none …

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Cranial Anatomy And Taxonomy Of Dolichorhynchops Bonneri New Combination, A Polycotylid (Sauropterygia: Plesiosauria) From The Pierre Shale Of Wyoming And South Dakota, F. Robin O’Keefe Jan 2008

Cranial Anatomy And Taxonomy Of Dolichorhynchops Bonneri New Combination, A Polycotylid (Sauropterygia: Plesiosauria) From The Pierre Shale Of Wyoming And South Dakota, F. Robin O’Keefe

Biological Sciences Faculty Research

The taxonomic identity of two well-preserved polycotylid plesiosaur skeletons from the Pierre Shale of far northern Wyoming and southern South Dakota has been controversial since their discovery. Originally referred to Dolichorhynchops osborni, the material was almost immediately christened Trinacromerum bonneri Adams 1997; more recently the material has been referred toPolycotylus. Recent preparation of the well-preserved skull of one specimen permits detailed examination of the cranial morphology of this animal for the first time, and allows for its inclusion in a cladistic analysis of the Polycotylidae. This analysis reveals a stable sister-taxon relationship with Dolichorhynchops osborni. However, …

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Effects Of A Neem Sample On Protein Patterns Of Bactrocera Cucurbitae, Nikhat Yasmin, Mohammad Farhanullah Khan, Muhammad Samiullah Channa, Zeeshan Ali Jan 2008

Effects Of A Neem Sample On Protein Patterns Of Bactrocera Cucurbitae, Nikhat Yasmin, Mohammad Farhanullah Khan, Muhammad Samiullah Channa, Zeeshan Ali

Turkish Journal of Zoology

Bactrocera cucurbitae (Coquillett) adults were reared with 5% honey solution, sugar, and protein-hydrolysate. Females were provided to lay eggs on larval rearing media in a bottle gourd. Twenty third-instar larvae of the same size and age were exposed to filter papers treated with varying doses of a neem sample in 90 mm diameter petri dishes for 24 h. A probit-mortality curve was drawn to determine the LC_{50} of the sample. LC_{50} dose of the sample was calculated as 5.6%. Thin layer chromatography was used to determine the effects of neem sample on the protein patterns of the treated insect. The …

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Comparison Of Estradiol-Trenbolone Acetate Implant Programs For Yearling Steers Of Two Genotypes, Robbi H. Pritchard Jan 2008

Comparison Of Estradiol-Trenbolone Acetate Implant Programs For Yearling Steers Of Two Genotypes, Robbi H. Pritchard

South Dakota Beef Report, 2008

Yearling steers (n = 400) were used to evaluate relative payout periods for implants when feeding high grain content diets. Implant treatments included (1) control (nonimplanted), (2) Synovex Plus, (3) revalor-s, and (4) Ralgro-revalor-s. The Synovex Plus (2), revalor-s (3) and Ralgro (4) were administered on day 1. The reimplant with revalor-s (4) was admnistered after 56 d on feed. Steers were managed in two groups. Initial BW and days fed were 782 lb, 131 d (Group I), and 661 lb, 145 d (Group II). Implants increased production rates and efficiencies, increased carcass size and reduced marbling when compared to …

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Optimal Data Partitioning And A Test Case For Ray-Finned Fishes (Actinopterygii) Based On Ten Nuclear Loci, Chenhong Li, Guoqing Lu, Guillermo Orti Jan 2008

Optimal Data Partitioning And A Test Case For Ray-Finned Fishes (Actinopterygii) Based On Ten Nuclear Loci, Chenhong Li, Guoqing Lu, Guillermo Orti

Biology Faculty Publications

Data partitioning, the combined phylogenetic analysis of homogeneous blocks of data, is a common strategy used to accommodate heterogeneities in complex multilocus data sets. Variation in evolutionary rates and substitution patterns among sites are typically addressed by partitioning data by gene, codon position, or both. Excessive partitioning of the data, however, could lead to overparameterization; therefore, it seems critical to define the minimum numbers of partitions necessary to improve the overall fit of the model. We propose a new method, based on cluster analysis, to find an optimal partitioning strategy for multilocus protein-coding data sets. A heuristic exploration of alternative …

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A Study Of The Turkish Cryptini Iv. (Cryptinae: Ichneumonidae: Hymenoptera), Mehmet Faruk Gürbüz, Janko Kolarov Jan 2008

A Study Of The Turkish Cryptini Iv. (Cryptinae: Ichneumonidae: Hymenoptera), Mehmet Faruk Gürbüz, Janko Kolarov

Turkish Journal of Zoology

Faunistic data of 39 species belonging to the tribe Cryptini from Cryptinae subfamily were studied. All species were collected from Isparta and surrounding districts between 2001 and 2004. General distribution of each species was given. Among them, 9 species noted in the text by asterisk are new records for the Turkish fauna.

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Larval Development Of The Caridean Shrimp Exopalaemon Styliferus (H. Milne Edwards, 1840) (Decapoda, Caridea, Palaemonidae) From The South Of Iraq Reared In The Laboratory, Mortadha Yousif Al-Abbad, Sabeeh Hilyel Al-Mayah, Malik Hassan Ali, Salman Daood Salman Jan 2008

Larval Development Of The Caridean Shrimp Exopalaemon Styliferus (H. Milne Edwards, 1840) (Decapoda, Caridea, Palaemonidae) From The South Of Iraq Reared In The Laboratory, Mortadha Yousif Al-Abbad, Sabeeh Hilyel Al-Mayah, Malik Hassan Ali, Salman Daood Salman

Turkish Journal of Zoology

The complete series of larval development of the caridean shrimp Exopalaemon styliferus (H. Milne Edwards, 1840) was determined from the laboratory hatching of ovigerous females. There were 6 zoeal stages followed by a megalopa. The distinctive features of zoea I are as follows: total length 2.72 mm, rostrum shorter than peduncle of antennules, scaphognathite of maxilla with 5 setose marginal setae and there are 3 rudiments of peraeopods. These stages were described in detail. A comparison was made with larvae of closely related species.

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Contribution To The Empis (Subgenus Empis) (Empididae, Diptera) Fauna Of Turkey, Mustafa Cemal Çi̇ftçi̇, Abdullah Hasbenli̇ Jan 2008

Contribution To The Empis (Subgenus Empis) (Empididae, Diptera) Fauna Of Turkey, Mustafa Cemal Çi̇ftçi̇, Abdullah Hasbenli̇

Turkish Journal of Zoology

Specimens of the subgenus Empis collected from different parts of Turkey between 1992 and 2006 were evaluated. Ten species of this genus were identified and 9 of these are the first records for the Turkish fauna.

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Molecular Systematic Analyses Of Mediterranean Skates (Rajiformes), Cemal Turan Jan 2008

Molecular Systematic Analyses Of Mediterranean Skates (Rajiformes), Cemal Turan

Turkish Journal of Zoology

Mitochondrial 16S ribosomal RNA was used to elucidate the pattern of relationships and systematic status of 4 genera, including 9 species of skates (Rostroraja alba, Leucoraja fullonica, Dipturus oxyrinchus, D. batis, Raja clavata, R. montagui, R. asterias, R. miraletus, and R. radula), living in the Mediterranean and Black Seas. The 16S rDNA dataset contained 39 variable and 29 parsimony informative sites. The mean nucleotide diversity (Pi) was 0.018. The genetic distances between pairs of species showed genetic homogeneity between R. clavata and R. montagui. The highest value of sequence divergence was detected between D. oxyrinchus and R. asterias (0.040). Low …

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Occurrence Of The Alien Species Aspidosiphon (Aspidosiphon) Elegans (Sipuncula) On The Levantine And Aegean Coasts Of Turkey, Şermi̇n Açik Jan 2008

Occurrence Of The Alien Species Aspidosiphon (Aspidosiphon) Elegans (Sipuncula) On The Levantine And Aegean Coasts Of Turkey, Şermi̇n Açik

Turkish Journal of Zoology

A total of 37 specimens of Aspidosiphon (Aspidosiphon) elegans were collected at 5 stations located along the Levantine coast of Turkey and at 1 station located near Foça (Aegean Sea). This species inhabited calcareous rocks, the mussel Branchidontes pharaonis, and the alga Corallina mediterranea between 0 and 3 m depths. The population density of this species in the area was found to be 25 ind. M^{-2}. As Aspidosiphon (A.) elegans is a bio-eroder species, its high population density may cause serious damage to coralligenous habitats. This study gives more data regarding the morphological, biological, and ecological features of the species …

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G- And C-Banded Karyotype Of Cricetulus Migratorius Pallas, 1773 (Mammalia: Rodentia) In Central Anatolia, Ati̇lla Arslan, Şükri̇ye Akan Jan 2008

G- And C-Banded Karyotype Of Cricetulus Migratorius Pallas, 1773 (Mammalia: Rodentia) In Central Anatolia, Ati̇lla Arslan, Şükri̇ye Akan

Turkish Journal of Zoology

The present study reports the banding patterns (G- and C-banding) of chromosomes of Cricetulus migratorius from Central Anatolia. Karyotype of C. migratorius comprised (2n) 22 chromosomes. The number of chromosomal arms (FN) was 44 and the number of autosomal arms (FNa) was 40. Subtelocentric X and Y chromosomes were very similar in size, but they differed on G- and C-banding patterns. Most autosomes in this species were C-negative. Pair no. 4 had very small centromeric C-bands, autosome no. 8 possessed an under-centromeric heterochromatin block, and the distal part of chromosome no. 9 had a C-positive band. The Y chromosomes had …

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First Record Of The Eucalyptus Seed Gall Wasp, Quadrastichodella Nova Girault, 1922, (Eulophidae: Tetrastichinae) From Turkey, Oğuzhan Doğanlar, Mi̇kdat Doğanlar Jan 2008

First Record Of The Eucalyptus Seed Gall Wasp, Quadrastichodella Nova Girault, 1922, (Eulophidae: Tetrastichinae) From Turkey, Oğuzhan Doğanlar, Mi̇kdat Doğanlar

Turkish Journal of Zoology

The present study was carried out during 2006 and 2007 in a eucalyptus planted area in the Mediterranean region of Turkey. The eulophid species Quadrastichodella nova Girault (Hymenoptera: Eulophidae: Tetrastichinae) was collected on Eucalyptus spp. seed capsules for the first time in Turkey. This species induces galls on the seeds, attaining low levels of infestation. The plant species Eucalyptus camaldulensis L. (Myrtaceae) is reported as new host for Q. nova.

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Some Earthworm Records From Anatolia (Oligochaeta, Lumbricidae), Mete Misirlioğlu Jan 2008

Some Earthworm Records From Anatolia (Oligochaeta, Lumbricidae), Mete Misirlioğlu

Turkish Journal of Zoology

The goal of this study was to provide additional data on the poorly known earthworm fauna of Anatolia. During the study earthworms from 16 different localities were identified, which resulted in a list of 11 species belonging to 7 genera.

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A Preliminary Study Of Earthworms (Oligochaeta, Lumbricidae) From The City Of İzmir, Turkey, Mete Misirlioğlu Jan 2008

A Preliminary Study Of Earthworms (Oligochaeta, Lumbricidae) From The City Of İzmir, Turkey, Mete Misirlioğlu

Turkish Journal of Zoology

The results of an earthworm survey of 11 different localities in the city of İzmir (Turkey) are presented. The samples were collected by digging and hand sorting. The 3 following species belonging to 3 different genera were identified in the studied regions: Allolobophora chlorotica, Aporrectodea caliginosa trapezoides and Dendrobaena veneta. In addition, juvenile specimens representing the genera Dendrobaena, Lumbricus, and Allolobophora were collected.

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Immunomodulatory And Protective Effects Of Sugar Cane Juice In Chickens Against Eimeria Infection, Masood Akhtar, M. Abdul Hafeez, Faqir Muhammad, Ahsan Ul Haq, M. Irfan Anwar Jan 2008

Immunomodulatory And Protective Effects Of Sugar Cane Juice In Chickens Against Eimeria Infection, Masood Akhtar, M. Abdul Hafeez, Faqir Muhammad, Ahsan Ul Haq, M. Irfan Anwar

Turkish Journal of Veterinary & Animal Sciences

Present paper reports the effects of sugar cane juice (SCJ) on immune responses and its protection against Eimeria (mixed species) infections in broiler chickens. Experiment 1 was conducted to test the dose efficacy of SCJ and its effects on chickens against coccidiosis. Maximum weight gain per day was recorded in chickens given SCJ @ 400 mg/kg body weight. Significantly (P < 0.01) low mortality and increased body weight gain per day were recorded in chickens administered SCJ orally and challenged with mixed species of genus Eimeria. Furthermore, mild hemorrhages, lower lesion scores (+1), and significantly lower number of oocysts shed in faeces were recorded in immunized chickens compared to control. Experiment 2 was carried out to evaluate the immunomodulatory effects of SCJ on cellular and humoral responses. Highest antibody titres (1:1024-1:16; GMT 367.28) were recorded in chickens administered SCJ @ 400 mg/kg body weight in comparison with control (1:16-1:2; GMT 2.82). To demonstrate the cell mediated immunity (CMI), amplitude of toe-web swelling 72 h post avian tuberculin injection was recorded in the experimental and control groups. Maximum swelling (8.13 ± 0.21 mm) was recorded in the experimental group as compared to control (1.04 ± 0.10); indicating higher cell mediated immune response. From these results it was concluded that SCJ elicit a significantly higher cellular and humoral responses compared to control, which may provide protection against Eimeria infections (mixed species) in chickens.

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Toxicity Of Heliotropium Dolosum, Heliotropium Circinatum, And Senecio Vernalis In Parental Quail And Their Progeny, With Residue Evaluation Of Eggs, Yesari̇ Eröksüz, Ali̇ Osman Çeri̇başi, Aydin Çevi̇k, Hati̇ce Eröksüz, Fatma Tosun, Uğur Tamer Jan 2008

Toxicity Of Heliotropium Dolosum, Heliotropium Circinatum, And Senecio Vernalis In Parental Quail And Their Progeny, With Residue Evaluation Of Eggs, Yesari̇ Eröksüz, Ali̇ Osman Çeri̇başi, Aydin Çevi̇k, Hati̇ce Eröksüz, Fatma Tosun, Uğur Tamer

Turkish Journal of Veterinary & Animal Sciences

In all, 160 Japanese quail (80 male and 80 female) were divided into 4 groups (3 test groups and 1 control group). The test groups were fed a diet containing aerial parts (leaves, stems, and flowers) of Senecio vernalis (SV group), Heliotropium dolosum (HD group), or Heliotropium circinatum (HC group) at the level of 30% for 6 weeks, and the control group was fed 0% in order to evaluate parental and progenial toxicity, along with the transference of alkaloid residues to their eggs. The pyrrolizidine alkaloid content in the feed was 390 mg/kg in the HD group, 450 mg/kg in …

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Genetic Parameters Of Residual Energy Intake And Its Correlations With Other Traits In Holstein Dairy Cattle, Pouya Zamani, Seied Reza Miraei Ashtiani, Hosein Mohammadi Jan 2008

Genetic Parameters Of Residual Energy Intake And Its Correlations With Other Traits In Holstein Dairy Cattle, Pouya Zamani, Seied Reza Miraei Ashtiani, Hosein Mohammadi

Turkish Journal of Veterinary & Animal Sciences

Residual energy intake (REI) or residual feed intake (RFI), defined as the difference between actual energy intake, is predicted on the basis of requirements for maintenance, milk production, and body weight change of an animal. Genetic variation of REI and its relationships with dry matter intake, milk yield, fat corrected milk yield and milk fat, and protein yields was investigated using 3503 monthly records collected from 906 Holstein lactating cows. Variance components were estimated using univariate and multivariate animal models with the derivative-free approach of restricted maximum likelihood algorithm, fitting animal models with fixed effects of herd-year-season, parity number and …

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Associations Between Ghr And Igf-1 Gene Polymorphisms, And Reproductive Traits In Wenchang Chickens, Hui Fang Li, Wen Qi Zhu, Kuan Wei Chen, Xu Wu, Qing Ping Tang, Yu Shi Gao Jan 2008

Associations Between Ghr And Igf-1 Gene Polymorphisms, And Reproductive Traits In Wenchang Chickens, Hui Fang Li, Wen Qi Zhu, Kuan Wei Chen, Xu Wu, Qing Ping Tang, Yu Shi Gao

Turkish Journal of Veterinary & Animal Sciences

Alleles of physiological candidate genes for reproductive traits, insulin-like growth factor-1 (IGF-1), and growth hormone receptor (GHR) were assessed to determine their associations with total egg production (NE), average days of continual egg-laying (ADCE), and number of double yolk eggs (DYE) in Wenchang chickens (Chinese indigenous breed). PCR-RFLP was used for genotype identification. The frequency of restriction enzyme C1/C2 alleles in the population was 0.53 (C1) and 0.47 (C2) for IGF-1. For GHR-intron 2 it was 0.06 and 0.94 for (A1) and (A2), respectively, while for GHR-intron 5 it was 0.20 (B1) and 0.80 (B2). Four significant associations were found …

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Temporal Distribution Of Harvested Mid-Continent Sandhill Cranes Within The Central Flyway States During The 1997–2001 Hunting Seasons, Adrianna C. Araya, James A. Dubovsky Jan 2008

Temporal Distribution Of Harvested Mid-Continent Sandhill Cranes Within The Central Flyway States During The 1997–2001 Hunting Seasons, Adrianna C. Araya, James A. Dubovsky

Proceedings of the North American Crane Workshop

Since 1975, annual harvest estimates for Mid-Continent sandhill cranes (Grus canadensis) have been collected in all states for which a hunting season has been authorized by the U.S. Fish and Wildlife Service (Service). Although these data have been used to monitor the harvest of the Mid-Continent population, analyses to promote understanding of the temporal distribution of harvested sandhill cranes by individual states throughout the Central Flyway have not been conducted. For the 1997-2001 hunting seasons, we collected harvest questionnaires from 4,408 hunters in the Central Flyway who provided information about the date, location, and number of harvested sandhill …

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Is Magnitude Of Fat Storage By Spring-Staging Sandhill Cranes Declining In The Central Platte River Valley, Nebraska?, David A. Brandt, Gary L. Krapu Jan 2008

Is Magnitude Of Fat Storage By Spring-Staging Sandhill Cranes Declining In The Central Platte River Valley, Nebraska?, David A. Brandt, Gary L. Krapu

Proceedings of the North American Crane Workshop

Proximate analyses of carcasses of sandhill cranes (Grus canadensis) collected in the Central Platte River Valley (CPRV), Nebraska, during spring 1999 indicated a marked decline in fat levels from springs 1978 and 1979. Concern that amounts of fat cranes stored by their spring departures from the CPRV may have further declined prompted this evaluation. For our assessment, we made use of morphological measurements (culmen post nares, tarsus, flattened wing chord) along with body mass on each of 810 sandhill cranes that were collected for proximate analysis or captured with rocket nets at widely distributed sites in the CPRV during 1978-1979 …

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Hunting Success For Mid-Continent Sandhill Cranes In The Central Flyway: Comparing Current And Historic Results, James A. Dubovsky, Adrianna C. Araya Jan 2008

Hunting Success For Mid-Continent Sandhill Cranes In The Central Flyway: Comparing Current And Historic Results, James A. Dubovsky, Adrianna C. Araya

Proceedings of the North American Crane Workshop

Sport hunting for the Mid-continent population of sandhill cranes (Grus canadensis) in the United States resumed in New Mexico in 1961 after a 45-year moratorium. Interest in crane hunting continued to increase and by 1975, 8 states were participating in sandhill crane hunting. Currently, hunting seasons have been established in all Central Flyway states except Nebraska. Efforts to collect information on the annual harvest of sandhill cranes began in 1975 when hunters were required to obtain federal sandhill crane hunting permits. The permits included a hunting diary whereby hunters were asked to record information about their daily hunting …

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Feather Molt Of Nonmigratory Whooping Cranes In Florida, Martin J. Folk, Stephen A. Nesbitt, Jeannette M. Parker, Marilyn G. Spalding, Stephen B. Baynes, Kristen L. Candelora Jan 2008

Feather Molt Of Nonmigratory Whooping Cranes In Florida, Martin J. Folk, Stephen A. Nesbitt, Jeannette M. Parker, Marilyn G. Spalding, Stephen B. Baynes, Kristen L. Candelora

Proceedings of the North American Crane Workshop

Molt patterns of wild whooping cranes (Grus americana) are largely unknown, and what knowledge we have has been based on scant data. We documented patterns of feather molt in nonmigratory whooping cranes in Florida during 1993-2005. All birds replaced flight feathers (remiges) in a synchronous (simultaneous) manner and spent time flightless. It took 38-46 days (mean = 44 days, n = 8) for feathers to regrow and birds to regain flight ability. When flightless due to remigial molt, cranes became more secretive and spent more time in wetlands during feather regrowth. Most (70%) whooping cranes first molted their …

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Factors Influencing Greater Sandhill Crane Nest Success At Malheur National Wildlife Refuge, Oregon, Gary L. Ivey, Bruce D. Dugger Jan 2008

Factors Influencing Greater Sandhill Crane Nest Success At Malheur National Wildlife Refuge, Oregon, Gary L. Ivey, Bruce D. Dugger

Proceedings of the North American Crane Workshop

We used logistic regression to model the effects of weather, habitat, and management variables on Greater Sandhill Crane (Grus canadensis tabida) nest success at Malheur National Wildlife Refuge in southeast Oregon. We monitored 506 nests over 9 breeding seasons. Mean apparent nest success was 72% ± 4% and varied from 51 to 87%. Nest success was lower one year after a field was burned and declined with nest initiation date. Nest success was higher during warmer springs, in deeper water, and in years with moderate precipitation. Haying, livestock grazing, and predator control did not influence nest success. We …

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