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2007

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Articles 481 - 510 of 681

Full-Text Articles in Animal Sciences

The Efficacy And Longevity Of Vectobac® 12 As And Vectobac® G (Both Based On Bacillus Thuringiensis Subsp. Israelensis) For The Control Of Mosquitoes In Turkey, Adnan Aldemi̇r Jan 2007

The Efficacy And Longevity Of Vectobac® 12 As And Vectobac® G (Both Based On Bacillus Thuringiensis Subsp. Israelensis) For The Control Of Mosquitoes In Turkey, Adnan Aldemi̇r

Turkish Journal of Zoology

Under the field conditions of the Gölbaşı district of Ankara, commercial preparations of VectoBac® 12 AS (aqueous suspension) and VectoBac® G (corn cob formulation), both based on Bacillus thuringiensis subsp. israelensis (H-14), were tested against Anopheles sacharovi, An. maculipennis, Culex pipiens, and Cx. theileri larvae at the edge of a lake, a flood plain, and a swamp. Applying VectoBac® 12 AS at the rate of 1.0-1.25 l/ha and VectoBac® G at 7.5-10.0 kg/ha produced excellent initial control (90%-100%) of all mosquito larvae under Central Anatolian conditions. An increase in larval mortality was detected in all treatments as dose rates increased, …

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The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz Jan 2007

The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz

Turkish Journal of Zoology

In all, 103 specimens of Clark's lizard, Darevskia clarkorum (Darevsky and Vedmederja, 1977), from 6 localities in the eastern Black Sea region of Turkey were examined in terms of pholidosis characteristics, morphometric measurements, and color and pattern features. Kolmogorov-Smirnov testing across all populations verified sexual dimorphism in the Ortacalar and Hemşin populations, regarding transversal series of ventral plates (P < 0.05). According to the Mann-Whitney U test, 16 pholidosis characteristics showed differences among the populations (P < 0.05). For comparison of morphometric measurements, 4 morphometric indices and ratios were developed. According to the results of independent t-testing, no differences were found between males and females among the populations. One-way variance analyses based on 4 morphometric indices and ratios confirmed that head index, snout-vent length/tail length, and tail length/total body length showed differences among the populations (P < 0.05). Regarding pholidosis characteristics (except rates of the presence of a masseteric plate and contact between the rostral and internasal plate), morphometric measurements, and color and pattern features, the specimens collected from 6 different localities were similar to D. clarkorum specimens mentioned in the literature. Furthermore, the known range of the species in Turkey has been extended.

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Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever Jan 2007

Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever

Turkish Journal of Zoology

Age, sex, mortality, and growth characteristics of brown trout (Salmo trutta) from the upper Aksu Stream were investigated. Females and males comprised 52.13% and 47.87% of the population, respectively. Age ranged from 1 to 8. The fork length (L) and total weight (W) were 5.7-22.8 cm and 2.9-142.6 g, respectively. Length-weight relationships were W = 0.015 x L^{2.939}, W = 0.015 x L^{2.928}, and W = 0.015 x L^{2.932} for females, males, and overall, respectively. The estimated von Bertalanffy growth parameters were L_{infinity} = 33.27 cm, K = 0.107 y^{-1}, and t_0 = -1.046 y for females; L_{infinity} = 29.50 …

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The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu Jan 2007

The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu

Turkish Journal of Zoology

Earthworm specimens collected from 10 different areas of the Kocaeli city center were examined and identified. At the end of the study, 8 species belonging to 5 genera of Lumbricidae were identified: Lumbricus rubellus, Cernosvitovia schweigeri, Octodrilus transpadanus, Aporrectodea caliginosa trapezoides, Aporrectodea rosea, Aporrectodea jassyensis, Dendrobaena hortensis, and Dendrobaena veneta.

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Gregarina Typographi Fuchs, A Gregarine Pathogen Of The Six-Toothed Pine Bark Beetle, Ips Sexdentatus (Boerner) (Coleoptera: Curculionidae, Scolytinae) In Turkey, Mustafa Yaman Jan 2007

Gregarina Typographi Fuchs, A Gregarine Pathogen Of The Six-Toothed Pine Bark Beetle, Ips Sexdentatus (Boerner) (Coleoptera: Curculionidae, Scolytinae) In Turkey, Mustafa Yaman

Turkish Journal of Zoology

A gregarine pathogen of Ips sexdentatus is reported in Turkey for the first time and described as Gregarina typographi. A mixed nematode parasitization and gregarine infection is reported. Gregarines were observed in the populations of I. sexdentatus in Şalpazarı (Sisdağı), Trabzon. During the study, several life stages of the gregarine pathogen were observed, measured, and photographed. Measurements of gamonts and gametocysts of G. typographi are given and compared with other gregarine isolates from Turkey.

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The First Host Record For Zeuxia Zejana Kolomiets, 1971 (Diptera: Tachinidae) From Turkey, Göksel Tozlu, Kenan Kara Jan 2007

The First Host Record For Zeuxia Zejana Kolomiets, 1971 (Diptera: Tachinidae) From Turkey, Göksel Tozlu, Kenan Kara

Turkish Journal of Zoology

Zeuxia zejana Kolomiets (Diptera: Tachinidae) specimens were reared from the larvae of Agapanthia osmanlis Reiche et Saulcy (Col.: Cerambycidae) in Bayburt province (Kop Mountain Pass). Agapanthia osmanlis is the first known host for Zeuxia zejana in Turkey.

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Efficacy Of Solanum Villosum Mill. (Solanaceae: Solanales ) As A Biocontrol Agent Against Fourth Instar Larvae Of Culex Quinquefasciatus Say, Nandita Chowdhury, Indranil Bhattacharjee, Subrata Laskar, Goutam Chandra Jan 2007

Efficacy Of Solanum Villosum Mill. (Solanaceae: Solanales ) As A Biocontrol Agent Against Fourth Instar Larvae Of Culex Quinquefasciatus Say, Nandita Chowdhury, Indranil Bhattacharjee, Subrata Laskar, Goutam Chandra

Turkish Journal of Zoology

Dried ground leaves of Solanum villosum, Mill. were extracted with 5 different solvents [petroleum ether, benzene, choloform:methanol (1:1 v/v), acetone, and absolute alcohol] to determine the best extractant for subsequent isolation and characterization of larviciding compounds. Each batch of larvae (10 per batch) was treated with 30 ppm, 50 ppm, and 100 ppm of each extract in 3 replicates. All eluted fractions were found to induce significant mortality in test mosquito species. The petroleum ether eluted fraction was the least toxic, whereas the chloroform:methanol (1:1 v/v) eluted fraction was the most toxic to the larvae. A very high mortality rate …

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Seasonal Variation In Length, Weight, And Sex Distribution Of Turbot (Scophthalmus Maeoticus Pallas, 1811) In The Sinop Region (Black Sea) Of Turkey, Necati̇ Samsun, Ferhat Kalayci, Osman Samsun Jan 2007

Seasonal Variation In Length, Weight, And Sex Distribution Of Turbot (Scophthalmus Maeoticus Pallas, 1811) In The Sinop Region (Black Sea) Of Turkey, Necati̇ Samsun, Ferhat Kalayci, Osman Samsun

Turkish Journal of Zoology

The length, weight and sex distribution of turbot caught by bottom turbot gill nets were investigated in relation with seasons in the Sinop region. The size ranges were 23.9-69 cm and 31.8-81 cm for male and female turbot, respectively. Mean total length and weight were 50.37 ± 0.42 cm and 2483.2 ± 74.7 g for females, 45.93 ± 0.26 cm and 1711.2 ± 31.2 g for males, and 47.79 ± 0.24 cm and 2034.6 ± 38.5 g for all individuals. Significant differences were found both in length and weight values of turbot between seasons. The highest mean length and weight …

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Life Cycle Of Gammarus Pulex (L.) In The River Yeşilırmak, Mustafa Duran Jan 2007

Life Cycle Of Gammarus Pulex (L.) In The River Yeşilırmak, Mustafa Duran

Turkish Journal of Zoology

Monthly sampling of Gammarus pulex for 45 months in the River Yeşilırmak showed that the mean seasonal population density increased to a maximum in summer, and then declined to the lowest level in winter. There was a consistent seasonal pattern of body length distributions, characterised by the arrival of a strong cohort of new juveniles in spring and early summer. The ovigerous adults were few in autumn, peaked around January to March, and were virtually absent from July to October. Estimated sex ratios obtained from the field in general seem to show that females predominated, except in summer.

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A Serological Investigation Of Pelodytes Caucasicus And Pelobates Syriacus (Amphibia, Anura) Populations In Turkey, Murat Tosunoğlu, Hüseyi̇n Arikan Jan 2007

A Serological Investigation Of Pelodytes Caucasicus And Pelobates Syriacus (Amphibia, Anura) Populations In Turkey, Murat Tosunoğlu, Hüseyi̇n Arikan

Turkish Journal of Zoology

Blood serum proteins of specimens belonging to Pelodytes caucasicus and Pelobates syriacus populations were compared qualitatively and quantitively by means of polyacrylamide disc electrophoresis and densitometry methods. It was determined that the blood serum proteins of both populations demonstrated qualitative and quantitive differences. This result supports the morphological and osteological studies emphasizing the fact that the genus Pelodytes needs to be treated as a separate family (Pelodytidae).

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A Preliminary Study On The Population Characteristics Of The Lessepsian Species Pseudonereis Anomala (Polychaeta: Nereididae) In İskenderun Bay (Levantine Sea, Eastern Mediterranean), Meli̇h Ertan Çinar, Cem Altun Jan 2007

A Preliminary Study On The Population Characteristics Of The Lessepsian Species Pseudonereis Anomala (Polychaeta: Nereididae) In İskenderun Bay (Levantine Sea, Eastern Mediterranean), Meli̇h Ertan Çinar, Cem Altun

Turkish Journal of Zoology

The present paper deals with the population structure and biology of Pseudonereis anomala collected from different shallow-water habitats of İskenderun Bay in September 2005. In all, 434 specimens of P. anomala were found in the area. The maximum density and biomass values of the species in the area were 2475 ind. m^{-2} (on Jania rubens) and 7.85 g m^{-2} (among the bivalve Brachidontes pharaonis), respectively. The relationships among the biometrical measurements of the P. anomala specimens were assessed using regression and correlation analyses. The growth of P. anomala seems to be allometric. Among the specimens examined, only one specimen had …

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Redescription Of Diacyclops Alticola Kiefer, 1935 (Copepoda, Cyclopoida) From The Pamirs (Tajikistan), Iskandar Mirabdullayev, Nazira Rustamova Jan 2007

Redescription Of Diacyclops Alticola Kiefer, 1935 (Copepoda, Cyclopoida) From The Pamirs (Tajikistan), Iskandar Mirabdullayev, Nazira Rustamova

Turkish Journal of Zoology

Diacyclops alticola, a poorly known cyclopoid, is redescribed on specimens from a shallow pool near Lake Rang-Kul in the Pamirs (Tajikistan) at an altitude of 3700 m. Synonymy of D. alticola Kiefer, 1935 and D. longifurcus Shen et Sung, 1963 is proposed. A key to the species of the genus Diacyclops Kiefer, 1927 in Central Asia is presented.

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Comparison Of Skeletal Muscle Protein Bands Among Five Populations Of Bufo Viridis In Turkey By Sds-Page, Ufuk Bülbül, Bi̇lal Kutrup Jan 2007

Comparison Of Skeletal Muscle Protein Bands Among Five Populations Of Bufo Viridis In Turkey By Sds-Page, Ufuk Bülbül, Bi̇lal Kutrup

Turkish Journal of Zoology

Skeletal muscle protein bands of Bufo viridis samples from 5 different populations in Turkey were investigated by SDS-PAGE (Sodium Dodecyl Sulphate-Poly Acrylamide Gel Electrophoresis). The total number of skeletal muscle protein bands was 23 in Hatay, Kayseri, Rize, and Tekirdağ samples, and 25 in the Mersin sample. It can be ascertained from the present study that some populations of B. viridis in Turkey could be different according to skeletal muscle protein bands and SDS-PAGE results comparing different muscle protein bands could be helpful for taxonomical investigations.

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Physico-Chemical And Hygienic Characteristics Of The Calabrian Raw Milk Cheese, Caprino D´Aspromonte, Pietro Micari, Virginia Sarullo, Rossana Sidari, Andrea Caridi Jan 2007

Physico-Chemical And Hygienic Characteristics Of The Calabrian Raw Milk Cheese, Caprino D´Aspromonte, Pietro Micari, Virginia Sarullo, Rossana Sidari, Andrea Caridi

Turkish Journal of Veterinary & Animal Sciences

The aim of the present research was the study of several physico-chemical and hygienic characteristics of Caprino d'Aspromonte goat's cheese, made from raw milk, which was sampled at the end of the ripening time (4 weeks), both in winter and in spring. The following ranges of variability were observed for each parameter: pH 5.25-5.89, dry matter 49.89%-67.07%, crude protein 21.12%-42.32% dry matter, fat 43.85%-54.03% dry matter, chloride content 2.06%-5.44% dry matter, total coliforms 0-5.04 log cfu g^{-1}, faecal coliforms 0-4.96 log cfu g^{-1}, yeasts 2.60-4.95 log cfu g^{-1}. These values were similar to those of other Mediterranean goat's milk cheeses …

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Haemato-Biochemical Aspects Of Parturient Haemoglobinuria In Buffalo, Muhammad Zubair Akhtar, Ahrar Khan, Muhammad Zargham Khan, Ghulam Muhammad Jan 2007

Haemato-Biochemical Aspects Of Parturient Haemoglobinuria In Buffalo, Muhammad Zubair Akhtar, Ahrar Khan, Muhammad Zargham Khan, Ghulam Muhammad

Turkish Journal of Veterinary & Animal Sciences

This study aimed to determine the haematological and biochemical changes that occur in buffaloes with parturient haemoglobinuria (PHU). For this purpose, serum samples from 60 PHU-affected and 60 apparently healthy buffaloes were collected and analysed. Mean erythrocyte count (3.6 ± 1.0 10^{12}/l), haemoglobin concentration (5.8 ± 1.4 g/dl), and haematocrit (16.9 ± 2.8 %) of the PHU-affected buffaloes were lower (P < 0.001), while their erythrocyte sedimentation rate (104.1 ± 36.2 mm/h) was higher (P < 0.001) in comparison to the healthy buffaloes. Neutrophils (43.0 ± 4.5%), urea (49.7 ± 7.8 mg/dl) and creatinine (2.1 ± 0.4 mg/dl) concentrations were significantly higher in the PHU-affected buffaloes, while lymphocytes (48.7 ± 2.9%) and erythrocytic glucose-6-phosphate dehydrogenase (G6PD) (92.3 ± 13.2 mU/10^9 TECs) were lower than in the healthy buffaloes. Serum phosphorus (1.9 ± 0.6 mg/dl) and copper (65.4 ± 6.0 \mu g/dl) were lower (P < 0.001), while molybdenum (171.5 ± 56.7 \mu g/dl) was higher in the PHU-affected buffaloes as compared to those values in the healthy buffaloes. It was concluded that PHU-affected buffaloes usually suffer from severe anaemia and hypophosphataemia, and erythrocytes with significantly reduced G6PD are prone to haemolysis, leading to haemoglobinuria in buffaloes.

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The Effect Of Proctodeal Gland Foam, And Depth And Frequency Of Artificial Insemination On Fertility And Hatchability Of Japanese Quail (Coturnix Japonica), Bronislawa Chelmonska, Anna Jerysz, Ewa Lukaszewicz, Artur Kowalczyk Jan 2007

The Effect Of Proctodeal Gland Foam, And Depth And Frequency Of Artificial Insemination On Fertility And Hatchability Of Japanese Quail (Coturnix Japonica), Bronislawa Chelmonska, Anna Jerysz, Ewa Lukaszewicz, Artur Kowalczyk

Turkish Journal of Veterinary & Animal Sciences

The effect of the depth of semen deposition in the female reproductive tract, the addition of proctodeal gland foam to the net semen, and insemination frequency on fertility and hatchability of Japanese quails was investigated. In 2 experiments semen was collected from 30-32 males using the method of male stimulation by female. A group of 30-32 females was used in the fertility trials. In the first experiment semen obtained from group 1 was collected in empty glass tubes, while from group 2 it was collected in tubes containing Lake´s extender kept at 20 °C. Semen obtained from each group was …

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The Occurrence Of Varroa Destructor Anderson And Trueman, 2000 On Honey Bees (Apis Mellifera) In Turkey, Levent Aydin, Ender Güleğen, İbrahi̇m Çakmak, A. Onur Gi̇ri̇şgi̇n Jan 2007

The Occurrence Of Varroa Destructor Anderson And Trueman, 2000 On Honey Bees (Apis Mellifera) In Turkey, Levent Aydin, Ender Güleğen, İbrahi̇m Çakmak, A. Onur Gi̇ri̇şgi̇n

Turkish Journal of Veterinary & Animal Sciences

The mite formerly known as Varroa jacobsoni is one of the major problems in beekeeping worldwide. Recently, it was shown that this pest is not V. jacobsoni, which chiefly infests the nests of Apis cerana in the Malaysia-Indonesia region, and the widespread pest was recognized with the new name, V. destructor. Morphometric analysis was performed on collected Varroa specimens from various regions in Turkey and identified as V. destructor.

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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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Expression Of The \Beta-(1,3-1,4)-Glucanase Gene In Streptococcus Salivarius Subsp. Thermophilus, Meltem Aşan, Numan Özcan Jan 2007

Expression Of The \Beta-(1,3-1,4)-Glucanase Gene In Streptococcus Salivarius Subsp. Thermophilus, Meltem Aşan, Numan Özcan

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was the transformation and expression of the \beta -(1,3-1,4)-glucanase (lichenase) gene in Streptococcus salivarius subsp. thermophilus to create a recombinant probiotic for poultry and improve the thermostability of the lichenase enzyme. The recombinant plasmid TL1R containing the \beta -(1,3-1,4)-glucanase gene was introduced into S. salivarius subsp. thermophilus by electrotransformation. The expressing of the \beta -(1,3-1,4)-glucanase gene in S. salivarius subsp. thermophilus was confirmed on lichenan plate, SDS-PAGE, and zymogram analysis. The \beta -(1,3-1,4)-glucanase enzyme expressed by S. salivarius subsp. thermophilus cells seemed to increase its capacity for thermoresistance and so it maintained its activity at …

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Lyme Disease (Borreliosis) In A Saint Bernard Dog: First Clinical Case In Turkey, Erol Güçlü Gülanber, Aynur Gülanber, Reyhan Albayrak, Nusret Gürkan Gülanber, Erdal Polat Jan 2007

Lyme Disease (Borreliosis) In A Saint Bernard Dog: First Clinical Case In Turkey, Erol Güçlü Gülanber, Aynur Gülanber, Reyhan Albayrak, Nusret Gürkan Gülanber, Erdal Polat

Turkish Journal of Veterinary & Animal Sciences

Lyme disease is a zoonotic infection caused by the spirochete Borrelia burgdorferi, which is transmitted by ticks of the Ixodes species. This is the first clinical case report of Lyme disease in Turkey. The subject was a 2-year-old male Saint Bernard with recurrent shifting leg lameness that began at about 6 months of age. In sera samples, B. burgdorferi IgM, IgG, and Western Blot were found to be positive. Chronic borreliosis was diagnosed and a long-term amoxicillin treatment was recommended. One year after the initial presentation, the dog was asymptomatic according to the owner. A clinical examination performed 2 years …

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Climate-Induced Forest Dieback As An Emergent Global Phenomenon, Craig Allen, David D. Breshears Jan 2007

Climate-Induced Forest Dieback As An Emergent Global Phenomenon, Craig Allen, David D. Breshears

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

An organized oral session at the annual meeting of the Ecological Society of America in San Jose, Calif., posed this question: Is climate-induced drought stress triggering increasing rates and unusual patterns of forest die-off at a global scale? Twenty-nine researchers representing five continents reported on patterns, mechanisms, and projections of forest mortality.

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Subfamily Phyllostominae Gray, 1825 From Mammals Of South America, Stephen L. Williams, Hugh H. Genoways Jan 2007

Subfamily Phyllostominae Gray, 1825 From Mammals Of South America, Stephen L. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The subfamily Phyllostominae is distributed from the southern United States (Arizona, California, and southern Nevada), southward into northern Argentina, Paraguay, and southern Brazil. South American phyllostomines are primarily restricted to the mainland, but also occur on a few major islands off the coast of South America, such as Margarita Island (Venezuela), Trinidad and Tobago, and the Netherlands Antilles, as well as the Greater and Lesser Antilles. The number of genera and species recognized in the subfamily depends on the taxonomic interpretations of the content of the genera Lophostoma, Micronycteris, Mimon, Phyllostomus, and Tonatia. In near agreement with the …

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Immunohistochemical Diagnosis Of Aspergillosis In Adult Turkeys, Enver Beytut Jan 2007

Immunohistochemical Diagnosis Of Aspergillosis In Adult Turkeys, Enver Beytut

Turkish Journal of Veterinary & Animal Sciences

The aim of the present study was to apply immunohistochemistry, using a commercially available monoclonal antibody, for the diagnosis of aspergillosis in adult turkeys. Eight adult turkeys were studied. The lungs revealed grossly a few yellowish-white granulomas. Histopathologically, the granulomas were distributed in the pulmonary parenchyma or occasionally located around the airways. A few fungal hyphae were detected within the necrotic debris of the granulomas in the lungs using routine fungal stains. Immunohistochemical staining performed on lung sections from all of the turkeys disclosed fungal hyphae and their fragments clearly within the necrotic debris and within the cytoplasm of macrophages …

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Contents, Discovery Editors Jan 2007

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Letter From The Dean, Gregory J. Weidemann Jan 2007

Letter From The Dean, Gregory J. Weidemann

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Instructions For Authors, Discovery Editors Jan 2007

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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2007 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University Jan 2007

2007 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University

South Dakota Beef Report, 2007

This is the 2007 South Dakota Beef Report. The articles published in this report summarize many of the beef cattle research activities conducted at South Dakota State University during 2007. The articles in this report have many levels of application. Some information has immediate application for your farm, ranch, or agribusiness. The articles include information on nutrition, feed management, reproductive management, health, growth and development, and economics of the cattle and beef industry in South Dakota.

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Plasma Ghrelin Concentrations Of Beef Cattle Consuming A Similar Amount Of Dietary Energy Supplied By Different Ingredients, Aimee Wertz-Lutz, Jeff Clapper, Jenny Thurlow, Donald Beitz, Allen Trenkle Jan 2007

Plasma Ghrelin Concentrations Of Beef Cattle Consuming A Similar Amount Of Dietary Energy Supplied By Different Ingredients, Aimee Wertz-Lutz, Jeff Clapper, Jenny Thurlow, Donald Beitz, Allen Trenkle

South Dakota Beef Report, 2007

Previous research demonstrated that restricting nutrient intake by decreasing DMI of a high-grain diet increased plasma ghrelin concentrations. Objectives of this experiment were to determine 1) whether dietary ingredient composition influenced plasma ghrelin concentrations when energy intake was similar, and 2) whether relationships existed between plasma ghrelin concentrations and plasma insulin, NEFA, and GH concentrations or end-products of carbohydrate fermentation in the rumen. Five steers (1290 ± 39.9 lb) were used in a crossover design with dietary treatments of 50% hay-50% concentrate (HAY) offered at an amount that would meet the steer’s NEm requirement plus supply an additional 3.5 Mcal …

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Effects Of Increasing The Dietary Energy Density By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles On Nutrient Digestibility And Rumen Fermentation, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held Jan 2007

Effects Of Increasing The Dietary Energy Density By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles On Nutrient Digestibility And Rumen Fermentation, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held

South Dakota Sheep Research Reports, 2006-07

We hypothesize that soybean hulls (SH) and dried distillers grains with solubles (DDGS) can be used in lamb diets to increase dietary energy density compared with a traditional grass hay (GH) and soybean meal (SBM) diet without causing adverse effects on nutrient digestibility and rumen function. To test this hypothesis, four ruminally-cannulated wethers were used in a 4x4 Latin square design to determine the effects of replacing GH with SH and replacing SBM with DDGS on nutrient digestibility and rumen fermentation. All diets were formulated to contain 60% roughage and 40% concentrate on DM basis. Dietary roughage source, however, varied …

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Control Or Eradication Of Bvd From A Beef Herd, Clell V. Bagley Dvm, Douglas S. Hammon Jan 2007

Control Or Eradication Of Bvd From A Beef Herd, Clell V. Bagley Dvm, Douglas S. Hammon

All Current Publications

This publication describes ways to control or eradicate BVD from a beef herd, and includes description of the virus caused disease.

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