Animal Sciences Commons^™

Feed Intake Of Sheep As Affected By Body Weight, Breed, Sex, And Feed Composition, R. M. Lewis, G. C. Emmans

Department of Animal Science: Faculty Publications

The hypotheses tested were that genetic size-scaling for mature BW (A, kg) would reduce variation in intake between kinds of sheep and that quadratic polynomials on u = BW/A with zero intercept would provide good descriptions of the relationship between scaled intake (SI, g/A0.73 d) and degree of maturity in BW (u) across feeds of differing quality. Both sexes of Suffolk sheep from 2 experimental lines (n = 225) and from 3 breed types (Suffolk, Scottish Blackface, and their cross; n = 149) were recorded weekly for ad libitum feed intake and BW; recording of intake was from weaning through, …

Maedi-Visna Virus In Turkish Sheep: A Preliminary Serological Survey Using Elisa Tests, Silvia Preziuso, Mehmet Erman Or, Monica Giammarioli, Abdullah Kayar, Francesco Feliziani, Remzi̇ Gönül, Silvana Farneti, Cağla Parkan Yaramiş, Carlo Valente, Vincenzo Cuteri

Turkish Journal of Veterinary & Animal Sciences

The maedi-visna virus (MVV) is distributed worldwide and, to date, no epidemiological surveys have been carried out using ELISA testing in Turkey. The aims of this study were as follows: i) to verify the diagnostic performance of a home-made ELISA test (HM-ELISA) using Turkish ovine sera in comparison with other commercially available ELISA tests, and ii) to perform a preliminary epidemiological survey in İstanbul province. The MVV seroprevalence in İstanbul province was 15.3%. Older sheep were 5 times more likely to be positive than younger animals, ewes were 3 times more likely to be positive than rams, and all the …

Genetic Relationship Between Longevity And Objectively Or Subjectively Assessed Performance Traits In Sheep Using Linear Censored Models, W. Mekkaway, Rainer Roehe, Ronald M. Lewis, M. H. Davies, L. Bünger, G. Simm, W. Haresign

Department of Animal Science: Faculty Publications

Genetic parameters of longevity in crossbred mule ewes, and genetic relationships among longevity, growth, body composition, and subjectively assessed traits on mule lambs and ewes have been estimated using Bayesian linear censored models. Additionally, the genetic associations between longevity and culling reasons were examined. Data comprised 1,797 observations of mule ewes for longevity, culling reasons, growth, body composition, mouth scores, and type traits. Longevity was defined as the time (in years) from 2 yr of age (the age at first lambing of most ewes) to culling or death. Censored data (i.e., observations for which only the lower bound of the …

Minimizing Disease In Your Sheep Flock, A Guide To Preventive Flock Health, Kerry A. Rood, C Kim Chapman

All Current Publications

This publication serves as a guide to preventative sheep flock health that explains risks, nutrition, vaccinations, etc.

Prevention Of Hydatid Disease, Kerry A. Rood, Emma Jane Kelly

All Current Publications

This publication provides details for preventing hydatid disease in dogs and sheep.

Wool Desk Report June 2009: Flock Demographics And Producer Intentions - February 2009 National Survey Results, Department Of Agriculture And Food, Western Australia, Kimbal Curtis

Animal production and livestock published reports

This issue of Wool Desk Report presents the results of a survey of 1 410 Australian sheep producers conducted in February 2009. The survey was done to provide information to the Australian Wool Innovation’s Production Forecasting Committee and to update the flock model that is used by the relevant state forecasting committees. The survey methodology follows that reported in the May 2007 issue of Wool Desk Report (Curtis 2007).

The producers in the survey collectively produced 24.3 thousand tonnes of wool from a total of 4.3 million adult sheep and 1.7 million lambs shorn during 2007–2008. This represented a sample …

Getting Into Sheep An Introductory Guide To Sheep Management, Keith Croker, Roy Butler

Bulletins 4000 -

Sheep husbandry can be an interesting and rewarding activity but before starting to work with or buy sheep ask yourself if you are prepared to spend the time and effort to care for them.

Sheep cannot be placed in a paddock and forgotten. The sheep, along with their water, feed and fences must be inspected regularly. If you do not live on the farm, or visit it only infrequently, make sure there is a responsible person available who is willing to inspect and manage the sheep on your behalf.

Wool Desk Report February 2009: Time Of Lambing In Australian Flocks, Keith Croker, Kimbal Curtis, Jane Speijers, Department Of Agriculture And Food, Western Australia

Animal production and livestock published reports

Producers throughout Australia were surveyed in 2005, 2006 and 2007 to identify the times when they lambed their ewes. This study was undertaken by the Department of Agriculture and Food, Western Australia for Australian Wool Innovation Limited and the Australian Sheep Industry Cooperative Research Centre.

The start of lambing followed similar patterns in the years surveyed. However, lambing of Merino ewes began last in Tasmania and earliest in South Australia and Western Australia.

Data for Merino first cross ewes were collected in 2007 when Tasmania had the latest lambings and Queensland the earliest lambings.

Combined results for the three years …

Management Of Merino Weaners For Optimum Production, Patricia Harper, Keith Croker, Danny Roberts

Bulletins 4000 -

Sheep mortality during the first year of life is a large problem on many farms and poses a significant animal welfare issue for Australian agriculture. Post weaning mortality is estimated to cost the Australian sheep industry more than $89 million annually through reduced income, poor productivity and increased management expenses (Sackett et al. 2006).

A high mortality rate among weaners reduces the number of surplus animals available for sale and the number of potential breeding replacements. This, in turn, affects the selection intensity for desirable traits and the flock’s rate of genetic improvement.

Ill thrift and poor growth of weaner …

Rumen Entodiniid Ciliated Protozoan Fauna (Entodiniomorphida: Entodiniidae) Of Domestic Sheep (Ovis Ammon Aries L.) From Northern Cyprus, With A Description Of A New Species, Entodinium Cypriensis Sp. Nov., Bayram Göçmen, Gözde Gürelli̇

Turkish Journal of Zoology

Rumen contents obtained from 10 adult domestic sheep (Ovis ammon aries L.) at a slaughterhouse in Lapethos-Kyrenia (Girne), Northern Cyprus were surveyed for entodiniid ciliate protozoa. As a result of our survey 27 species, including 33 forms, were identified. An unusual form of Entodinium was observed in 2 sheep and is described as a new species, E. cypriensis sp. nov. Its relationship to similar Entodinium species is discussed. This study also reports new host records for E. imai, E. oektemae, E. ogimotoi, E. quadricuspis, E. rectangulatum f. dubardi, and E. rostratum. Furthermore, we report for the second time the presence …

Concentration Of Products Of Nitric Oxide Oxidation And Some Vitamins In Sheep With Naturally Acquired Babesiosis, Handan Mert, İbrahi̇m Yörük, Yeter Değer, Ni̇hat Mert, Semi̇ha Dede, Fatmagül Yur

Turkish Journal of Veterinary & Animal Sciences

The aim of the present study was to determine serum concentrations of the products of nitric oxide oxidation (nitrate and nitrite) and some vitamins (retinol acetate, \alpha- and \delta-tocopherol, and vitamin D_3) in sheep naturally infected with Babesia ovis. The investigation included 30 infected and 10 control sheep. Serum \alpha -tocopherol levels were significantly lower (P < 0.05), and nitrate and nitrite concentrations were significantly higher (P < 0.05) in infected animals than in controls. It is thought that the elevated nitrate and nitrite levels of the sheep infected with babesiosis were due to the result of damage caused by Babesia. On the other hand, a significant decrease was observed in \alpha -tocopherol levels in sheep with babesiosis because of damage and pathophysiological changes to erythrocytes.

Isolation And Biotyping Of Brucella Melitensis From Aborted Sheep And Goat Fetuses, Esra Büyükcangaz, Ayşi̇n Şen, Serpi̇l Kahya

Turkish Journal of Veterinary & Animal Sciences

The possible role of Brucella spp. in 65 abortion cases, 55 from sheep and 10 from goats, occurring in the birth seasons of 2004 and 2005 in northwestern Turkey was investigated. Colony morphology, agglutination by acriflavin, H2S production, CO2 requirement, dye sensitivity in thionin, basic fuchsin, growth characteristics in streptomycin, lysis with Tbilisi phage, and agglutination with monospecific A- and M antisera were examined for identification and biotyping. The isolates from 21 of 55 sheep and 1 of 10 goat abortion cases were identified as Brucella melitensis. Biotyping revealed that 14, 6, and 1 of 22 Brucella spp. were B. …

Acute Encephalopathy And Clinical Pathology Findings In A Sheep With Chronic Copper Poisoning, Nektarios D. Giadinis, Nikolaos Papaioannoy, Maria Kritsepi-Konstantinou, Nikolaos Roubies, Nikolaos Raikos, Harilaos Karatzias

Turkish Journal of Veterinary & Animal Sciences

A 3-year-old East Friesian sheep from a sheep flock that suffered from chronic copper poisoning was forwarded to the Clinic of Farm Animals in the Aristotle University. The animal had signs of a hemolytic disease indicative of chronic copper poisoning and also nervous signs. Laboratory examinations were consistent with chronic copper poisoning. This was confirmed after necropsy and liver toxicological analysis. By blood smear examination, metarubricytosis, basophilic stippling, anisocytosis, and polychromasia were found. Also, brain histopathological examination revealed focal areas of gliosis in the cerebral cortex and white matter areas. Satellitosis, neuronal degeneration (chromatolysis) and neuronophagia were also observed. These …

Self-Medicative Behavior Of Sheep Experiencing Gastrointestinal Nematode Infections And The Postingestive Effects Of Tannin, Larry D. Lisonbee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Diet selection and self-medication are fundamental to the survival of all species. The abilities to choose healthy foods in response to past consequences are basic elements of evolution. This study explores self-medication regarding tannins both as a medication and as a dietary challenge. In the first study, sheep with natural parasite infections were offered a low quality supplement containing a dose of tannins considered to be therapeutic (medicine), while the control infected lambs received the same supplement without tannins (placebo). This study included a group of parasite-free lambs. The parasitized lambs ate more of the tannin containing supplement than non-parasitized …

The Effects Of Circular And Linear Exercise On Articular Cartilage In Sheep, Kristine Vernon

All Dissertations

Excessive exercise may induce osteoarthritis (OA), or degeneration, of articular cartilage, which is a leading cause of lameness and decreased use in horses. The purposes of this study were to utilize a sheep model to determine the effects of circular and linear exercise on the macroscopic and microscopic characteristics of articular cartilage in the metacarpal-phalangeal (MCP) joint and to evaluate biochemical changes in serum and synovial fluid compared to non-exercised control lambs.
Twenty lambs were randomly assigned to three groups: circular exercise (C, 8.5m diameter; n = 8), straight-line exercise (S, treadmill; n = 8) and non-exercised control (CON, n …

Sheep Updates 2008 - Part 2, Meredith L. Sheil, Di Evans, Brown Besier, Tim Scanlon, Andre Martinho De Almeida, Johan Greeff, Tanya Kilminster, John Milton, Chris Oldham, B. L. Mcintyre, Alison Wheatley, John Lucey, Fiona Jones, Nick Costa, Ed Riggall, J. R. L. Hall, Robin Jacob, Dave Pethick, Dave Hopkins, Graham Gardner

Sheep Updates

This session covers eleven papers from different authors: The Sheep Room 1. Analgesia for Surgical Husbandry Procedures in Sheep and Other Livestock, Dr Meredith L. Sheil, Animal Ethics Pty Ltd, Associate Sydney University Faculty of Veterinary Science The Wool Enterprise 2. Unmulsed sheep - implications for chemical use, Di Evans & Brown Besier, Department of Agriculture and Food WA 3. Are Damara and Dorper sheep better adapted than Merinos to nutritional stress? - Growth rates, Tim Scanlon1, Andre Martinho de Almeida2, Johan Greeff1, Tanya Kilminster1, John Milton3, Chris Oldham1, Department of Agriculture and Food WA1, Instituto de Investigacao Cientifica Tropical, …

Slides: Paying The Price For Power: When L.A. Turns On The Lights, Northwestern New Mexico Feels It, Jonathan Thompson

Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)

Presenter: Jonathan Thompson, Editor, High Country News

23 slides

Evaluation Of Lifetimewool: 2008 National Farmer Survey Results, Anne Jones, Andrew Van Burgel, Gus Rose

All other publications

Key components of the lifetimewool evaluation plan were two National producer surveys to quantify change in the knowledge, attitudes, skills and aspirations over the duration of the project. In 2005, 2032 wool producers were surveyed to establish a benchmark for ewe and pasture management practices, knowledge and willingness to change. At that time, 93% of those who were surveyed said that they were willing to be resurveyed in 2008 at the completion of the project. This has allowed lifetimewool to compare individual producers’ changes in practices, knowledge and willingness over the three years that the communication and adoption phase of …

The Prevalence Of Sheep Liver Trematodes In The Northwest Region Of Iran, Mohammad H. Movassagh Ghazani, Mohammad R. Valilou, Ali R. Ahmadzadeh, Amir R. Karami, Khadijeh Zirak

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the prevalence of liver fluke infection in sheep in the northwest region of Iran (municipal slaughterhouse of Tabriz). The study included the livers of 140 sheep that were collected by systematic random sampling. The prevalence rate of Fasciola hepatica and Dicrocoelium dendriticum was 8.57% and 20%, respectively.

Sheep Updates 2007 - Part 4, Dean Thomas, Dominique Blache, Dean Revell, Hayley Norman, Phil Vercoe, Zoey Durmic, Serina Digby, Di Mayberry, Megan Chadwick, Martin Sillence, David Masters, R. Silberstein, F. Byrne, P. G. H. Nichols, J. Young, L. Aitkins, M. G. Wilmot, A. J. Rintoul, T. Lambert, D. R. Mcclements, P. Raper, P. Ward, C. Walton, T. York, David Pethick, David Hopkins, Malcolm Mcphee, D. B. Savage, J. V. Nolan, I. R. Godwin, A. Aoetpah, T. Nguyen, N. Baillie, C. Lawler, Ken Geenty, John Smith, Darryl Smith, Tim Dyall, Grant Uphill, John Young, Michael Paton, John Dorrian

Sheep Updates

This session covers eight papers from different authors:

GRAZING

1. The impact of high dietary salt and its implications for the management of livestock grazing saline land, Dean Thomas, Dominique Blache, Dean Revell, Hayley Norman, Phil Vercoe, Zoey Durmic, Serina Digby, Di Mayberry, Megan Chadwick, Martin Sillence and David Masters, CRC for Plant-based Management of Dryland Salinity, Faculty of Natural & Agricultural Sciences, The University of Western Australia, WA.

2. Sustainable Grazing on Saline Lands - outcomes from the WA1 research project, H.C. Norman^1,2, D.G. Masters^1,2, R. Silberstein^1,2, F. Byrne^2,3, P.G.H. Nichols …

Sheep Updates 2007 - Part 2, Ian Mcfarland, Catherine Stockman, Anne Barnes, David Pethick, Jenny Davis, Brett Thompson, Ron Leng, Sally Pieruzzini, Elizabeth Jackson, Mohammed Quaddus, Nazrul Islam, John Stanton, Melanie Dowling

Sheep Updates

This session covers six papers from different authors:

CONCURRENT SESSIONS

FINISHING LAMB AND BEEF

1. Precision Feedlot Lamb, Ian McFarland, Department of Agriculture and Food, Western Australia

2. Feeding sheep under high heat load did not decrease intake of feedlot rations, Catherine Stockman, Department of Agriculture and Food, Western Australia & Murdoch University, Anne Barnes, Murdoch University David Pethick, Murdoch University

3. Taking the stress out of fifishing lambs and cattle - EasyFeed solutions, Jenny Davis, Brett Thomson, Milne AgriGroup, Welshpool WA, Ron Leng, Emeritus Professor, University of New England, Armidale, NSW

WOOL

4. DAFWA …

A Comparison Of Pyronin Y-Methyl Green Stain And Methylene Blue Stain For Somatic Cell Count In Sheep Milk, Emily Mirek, Stacey O’Donnell

Senior Honors Projects

Somatic cell count is a key method used to evaluate the quality of milk in today’s growing dairy sheep industry. Somatic cells are body cells, primarily the white blood cells, found in a milk sample. If an infection such as mastitis is present, the number of somatic cells in the milk increases (Gonzalo, et al. 1992). Producers routinely perform somatic cell counts on cow and goat milk. For dairy cattle in the United States, the somatic cell count can not exceed 750,000 cells per milliliter, for commercial milk. For dairy goats the accepted limit is 1,000,000 cells per mL of …

Verotoxin Production In Strains Of Escherichia Coli Isolated From Cattle And Sheep, And Their Resistance To Antibiotics, Altan Aksoy, Murat Yildirim, Bi̇rgül Kaçmaz, Teoman Zafer Apan, J. Sedef Göçmen

Turkish Journal of Veterinary & Animal Sciences

In this study, 130 Escherichia coli strains isolated from 306 cattle and sheep fecal samples were studied for their resistance to 10 antibiotics, verotoxin production, and hemolyzation. The antibiotic resistance rates of the E. coli strains were as follows: tetracycline, 51.6%; streptomycin, 24.2%; ampicillin, 13.1%; amoxicillin/clavulanic acid, 5.2%; gentamycin, 4.6%; ciprofloxacin, 4.6%; trimethoprim-sulfamethoxazole, 4.3%; cefotaxime, 0.7%. None of the strains were resistant to cefepime or ceftazidime. Of all the antibiotics tested, only resistance to streptomycin was higher in the strains isolated from cattle than in the sheep strains (P = 0.043). The evaluation of the cattle strains, based on gender …

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, …

Seroprevalence Of Brucellosis In Human, Sheep, And Cattle Populations In Kırıkkale (Turkey), Teoman Zafer Apan, Murat Yildirim, Ersi̇n İstanbulluoğlu

Turkish Journal of Veterinary & Animal Sciences

The seroprevalence of Brucellosis in human, sheep, and cattle populations was investigated in rural regions of Kırıkkale in Turkey. Serum samples were obtained from 1436 humans, and 3.2% (46) of the population was found to be positive by Rose Bengal Plate test (RBPT) and 3.0% (43) gave positive results with the standard tube agglutination test (STAT). Immunoglobulin class analysis of RBPT-positive sera using the ELISA test gave positive results for 33 people (75%) with Brucella ELISA IgG and for 11 people (25%) with Brucella ELISA IgM. The evaluation of 804 serum samples, which were obtained from 301 cattle and 503 …

Determination Of Clostridium Perfringens Toxin-Types In Sheep With Suspected Enterotoxemia In Kars Province, Turkey, Hali̇l İbrahi̇m Gökce, Oktay Genç, Mahmut Sözmen, Gürbüz Gökçe

Turkish Journal of Veterinary & Animal Sciences

The study was designed to determine the types of Clostridium perfringens and their toxins in sheep with suspected enterotoxemia in Kars province. For this purpose, 260 dead sheep with suspected enterotoxemia and 35 clinically healthy sheep (controls) of different ages and breeds were used. Intestinal contents of each sheep were collected and used to determine alpha, beta, and epsilon toxins of C. perfringens using enzyme-linked immunosorbent assay (ELISA) and the latex agglutination test (LAT). Based on ELISA and LAT, 220 (84.61%) and 152 (58.46%) sheep, respectively, were positive for C. perfringens toxins. In contrast, 40 (15.38%) sheep were toxin-negative based …

Sheep Updates 2006 - Part 1, David Sackett, Kevin Foster, Ronald J. Yates, Phil Nichols, Graeme Martin, John Milton, Scott Williams, Garry Mcalister, Mark Suttie, Peter Fennessy, Jack Cocks

Sheep Updates

This session covers seven papers from different authors:

PLENARY

1. Making Dollars from Merinos, David Sackett, Holmes Sackett & Associates Pty Limited, Wagga Wagga, NSW

2. A new variety of sulla (Hedysarun coronarium)for forage production in southern Australia, Kevin Foster, Ron Yates, Phil Nichols, Department of Agriculture and Food, WA and Centre for Legumes in Mediterranean Agriculture, UWA

3. Mating - Short and fast is better, Graeme Martin, John Milton, Faculty of Natural & Agricultural Sciences, The University of Western Australia

4. Breech strike protection in sheep post 2010, Scott Williams, Program Manager Animal Health and Welfare, Australian Wool …

Investigation Of Serum Cu, Zn, Fe And Se Concentrations During Pregnancy (60, 100 And 150 Days) And After Parturition (45 Days) In Single And Twin Pregnant Sheep, Fuat Gürdoğan, Ati̇lla Yildiz, Engi̇n Balikçi

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to determine the serum Cu, Zn, Se and Fe concentrations at 60, 100, and 150 days of pregnancy and at 45 days of parturition in twin and single pregnant sheep. A total of 30 pregnant Akkaraman sheep in 2 groups (15 single pregnancies, 15 twin pregnancies), aged 3-5 years and weighing 40-50 kg were used. The blood samples were analyzed for serum Cu, Zn, Se and Fe concentrations. No statistically significant difference was found for Se, Cu, Fe and Zn concentrations between the twin and single pregnancy groups. Insignificant decreases (P > 0.05) in serum Zn and …

Changes In Faecal Egg Counts At Different Hours Of The Day And Relationship Between Faecal Egg Count And Parasite Burden In Sheep Naturally Infected With Dicrocoelium Dendriticum, Bayram Şenli̇k, Veli̇ Yilgör Çirak, Mustafa Muz, Recep Tinar

Turkish Journal of Veterinary & Animal Sciences

The present study was carried out to determine the variations in the number of eggs excreted in the faeces at different hours of the day and the correlation between faecal egg counts and fluke burden in sheep naturally infected with Dicrocoelium dendriticum. For this purpose faecal samples were taken from 14 sheep at 1-h intervals from 07^{00} to 19^{00}. Faecal samples were examined by modified Benedek sedimentation method and mean egg counts per gram of faeces (EPG) for each hour (average of group) were calculated. In general, egg counts were found higher in faecal samples taken in the afternoon than …

Application Of Western Blotting And Enzyme Linked Immunosorbent Assay (Elisa) For The Diagnosis Of Dicrocoelium Dendriticum In Sheep Using Excretory Secretory (E/S) Antigens, Sami̇ Şi̇mşek, Ergün Köroğlu, Armağan Erdem Ütük

Turkish Journal of Veterinary & Animal Sciences

Protein bands of excretory/secretory (E/S) antigens of Dicrocoelium dendriticum were determined using SDS-PAGE and Western blotting. The E/S antigens were prepared from live adult D. dendriticum, which were obtained from slaughtered sheep at a local abattoir. In the SDS-PAGE analysis of D. dendriticum E/S antigen, 9 protein bands with molecular weights varying between 6 and 66 kDa with Coomassie staining and 14 bands between 6 and 205 kDa with silver staining were detected. Blood samples were obtained from sheep at the local abattoir. Following the examination of the organs for D. dendriticum and other helminths, serum samples were divided into …