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Showing only stories from the Abs. category: Abstracts from journal articles of general interest to swine veterinarians. -- show all categories

Interactive Effects of Distillers Dried Grains with Solubles and Housing System on Reproductive Performance and Longevity of Sows Over Three Reproductive Cycles
April 23, 2014 —  [Abs.]
An experiment was conducted to evaluate the interactive effects of dietary distillers dried grains with solubles (DDGS) in sow diets and housing systems on reproductive performance and longevity....

Comparison of Organic and Inorganic Zinc Sources to Maximize Growth and Meet the Zinc Needs of the Nursery Pig
April 23, 2014 —  [Abs.]
Zinc is the trace element involved in more biological functions than any other micromineral in the nutrition of the newly weaned pig. Its role in growth via protein synthesis and antioxidant defense...

Detection and Genetic Analysis of Porcine Bocavirus in Different Swine Herds in North Central China
April 9, 2014 —  [Abs.]
Porcine Bocavirus (PBoV) has been reported to be associated with postweaning multisystemic wasting syndrome and pneumonia in pigs. In this study, a survey was conducted to evaluate the prevalence of...

Impact of Ractopamine Hydrochloride on Growth, Efficiency, and Carcass Traits of Finishing Pigs in a Three-Phase Marketing Strategy
April 2, 2014 —  [Abs.]
The objectives were to determine the effects of ractopamine hydrochloride (RAC) in a 3-phase marketing strategy. One thousand seven hundred forty pigs were used in 80 single-sex pens in 2 blocks....

Effect of Cross-Fostering and Oral Supplementation with Colostrums on Performance of Newborn Piglets
April 2, 2014 —  [Abs.]
The aim of the experiment was to study the effect on litter performance of two oral supplementation strategies on piglets born weighing 1.35 kg or less (SP; CON: no oral supplementation; COL:...

Effect of Day of Mixing Gestating Sows on Measures of Reproductive Performance and Animal Welfare
February 26, 2014 —  [Abs.]
Effects of day of mixing sows after breeding were measured for reproduction and welfare on a commercial research farm. Sows (n = 1,436) were weaned into stalls for breeding, and groups of sows were...

Space Allowance and High Fiber Diet Impact Performance and Behavior of Group-Kept Gestating Sows
February 19, 2014 —  [Abs.]
Identifying and optimizing housing and management systems that improve the well-being of the gestating sow is essential to sustaining animal agriculture. Therefore, the impact of 2 floor-space...

Practical Starter Pig Amino Acid Requirements in Relation to Immunity, Gut Health and Growth Performance
February 19, 2014 —  [Abs.]
Immune system activation begins a host of physiological responses. Infectious agents are recognized by monocytes and macrophages which in turn stimulate cytokine production. It is the hormone-like...

Absence of Tetracycline Resistance in Campylobacter coli Isolates from Finnish Finishing Pigs Treated with Chlortetracycline
February 19, 2014 —  [Abs.]
To determine whether therapeutic treatment of pigs with chlortetracycline affects the susceptibility of their Campylobacter isolates for tetracycline, ciprofloxacin and erythromycin. METHODS AND...

Effect of Enrofloxacin in the Carrier Stage of Haemophilus parasuis in Naturally Colonized Pigs
February 4, 2014 —  [Abs.]
The purpose of this study was to determine the effect of enrofloxacin in the carrier stage of Haemophilus parasuis in naturally colonized weaned pigs. Twenty-three pigs colonized by H. parasuis...

Establishment of the 2012 Vitamin D Requirements in Swine with Focus on Dietary Forms and Levels of Vitamin D
January 22, 2014 —  [Abs.]
In swine nutrition, little is known about vitamin requirements for reproductive processes and bone health, especially vitamin D. Supplemental vitamin D is usually added to animal feed as...

Antimicrobial Resistance and Prudent Drug Use for Streptococcus suis
January 22, 2014 —  [Abs.]
This paper reviews information on antimicrobial resistance patterns and prudent use of antimicrobials to reduce the impact and spread of resistant Streptococcus suis strains. S. suis is an important...

PRRS Corner: Variation among Sows in Response to Porcine Reproductive and Respiratory Syndrome
January 22, 2014 —  [Abs.]
Porcine reproductive and respiratory syndrome (PRRS) is a viral disease with negative impacts on reproduction of sows. Genetic selection to improve the response of sows to PRRS could be an approach...

Effects of Lowering Dietary Fiber Prior to Marketing on Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, and Intestinal Weights
January 13, 2014 —  [Abs.]
A total of 264 pigs (initially 41.0 kg BW) were used in a 90-d study to determine the effects of lowering dietary fiber prior to market on pigs fed high dietary fiber [provided by wheat middlings...

Management Factors Associated with Sow Reproductive Performance after Weaning
January 1, 2014 —  [Abs.]
To achieve optimal reproductive performance in pig herds, sows need to become pregnant as soon as possible after weaning. The aim of this study was to investigate herd and management factors...

Porcine Circovirus Type 2 Decreases the Infection and Replication of Attenuated Classical Swine Fever Virus in Porcine Alveolar Macrophages
January 1, 2014 —  [Abs.]
Recently, it has been noted that porcine circovirus type 2 (PCV2) infection adversely affects the protective efficacy of Lapinized Philippines Coronel (LPC) vaccine, an attenuated strain of classical...

Identification and Molecular Characterization of Porcine Kobuvirus in U. S. Swine
December 24, 2013 —  [Abs.]
Porcine kobuvirus has been associated with piglet diarrhea in Asia and Europe, but there are no reports of its presence in the U.S. swine farms. We screened intestinal contents from 114 diarrheic...

Antigenic Drift of H1N1 Influenza A Virus in Pigs with and without Passive Immunity
December 17, 2013 —  [Abs.]
Background The genetic and antigenic characteristics of influenza A viruses (IAV) within and between species change over time due to antigenic shift and drift. Although pigs are known to play a key...

US Swine Industry Productivity Analysis, 2005 to 2010
December 11, 2013 —  [Abs.]
Objective: To quantify US swine production trends for sow-farm and grow-finish traits from a large available database. Materials and methods: Data were provided by a data management company,...

Influence of Age on the Effectiveness of PCV2 Vaccination in Piglets with High Levels of Maternally Derived Antibodies
December 11, 2013 —  [Abs.]
Two field studies were conducted to investigate the influence of age on the efficacy of vaccination against Porcine Circovirus Diseases (PCVD) in animals with high levels of maternally derived...

Population Dynamics of Cocirculating Swine Influenza A Viruses in the United States from 2009 to 2012
December 4, 2013 —  [Abs.]
Understanding the ecology and evolution of influenza A viruses (IAV) in mammalian hosts is critical to reduce disease burden in production animals and lower zoonotic infection risk in humans. Recent...

A Role for Vitamin D in Skeletal Muscle Development and Growth
November 27, 2013 —  [Abs.]
Although well known for its role in bone development and mineral homeostasis, there is emerging evidence that vitamin D is capable of functioning as a regulator of skeletal muscle development and...

Heat Stress and Reduced Plane of Nutrition Decreases Intestinal Integrity and Function in Pigs
November 20, 2013 —  [Abs.]
Heat stress can compromise intestinal integrity and induce leaky gut in a variety of species. Therefore, the objectives of this study were to determine if heat stress (HS) directly or indirectly (via...

Transmissibility of Livestock-associated Methicillin-Resistant Staphylococcus aureus
November 13, 2013 —  [Abs.]
Previous findings have suggested that the nosocomial transmission capacity of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is lower than that of other MRSA genotypes. We...

Effect of Gender (Gilt, Surgically- and Immuno-Castrated Male) and Ractopamine Hydrochloride Supplementation on Growth Performance, Carcass and Pork Quality Characteristics of Finishing Pigs under Commercial Conditions
November 13, 2013 —  [Abs.]
This study evaluated the effects of gender and feeding of ractopamine on growth performance, carcass and meat quality characteristics of pigs reared under commercial conditions. The study was carried...

Outbreak of Variant Influenza A (H3N2v) Virus in the United States
November 6, 2013 —  [Abs.]
Variant influenza virus infections are rare but may have pandemic potential if person-to-person transmission is efficient. We describe the epidemiology of a multi-state outbreak of an influenza A...

First Reports of Pseudorabies and Winter Ticks (Dermacentor albipictus) Associated with an Emerging Feral Swine (Sus scrofa) Population in New Hampshire
November 5, 2013 —  [Abs.]
The expansion of feral swine (Sus scrofa) populations into new geographic regions is of concern not only due to increased range but also because they carry diseases and parasites that pose a threat...

Origin, Evolution, and Genotyping of Emergent Porcine Epidemic Diarrhea Virus Strains in the United States
October 23, 2013 —  [Abs.]
Coronaviruses are known to infect humans and other animals and cause respiratory and gastrointestinal diseases. Here we report the emergence of porcine epidemic diarrhea virus (PEDV) in the United...

Epidemiology of African Swine Fever Virus
October 13, 2013 —  [Abs.]
African swine fever virus used to occur primarily in Africa. There had been occasional incursions into Europe or America which apart from the endemic situation on the island of Sardinia always had...

Simulation of Air Quality and Cost to Ventilate Swine Farrowing Facilities in Winter
October 12, 2013 —  [Abs.]
We developed a simulation model to study the effect of ventilation airflow rate with and without filtered recirculation on airborne contaminant concentrations (dust, NH3, CO, and CO2) for swine...

The complete archive, including older stories, is here

Category abbreviations: AASV=Membership information, announcements, and other information from the American Association of Swine Veterinarians; Abs.=Abstracts from journal articles of general interest to swine veterinarians.; ALERT=Used to create email alerts; An.H.=Animal Health; Conf.=Conference announcements and other continuing education opportunities; FAD="Foreign" Animal Disease and other news most significant to regions outside of North America.; Food=Food Safety; Gov.=Information about legislation, regulations, and rulemaking that may affect the swine industry or swine veterinarians.; Hum.H.=Human health; Ind.=News from the pork industry, including NPPC and Pork Board activities.; International=Information regarding swine health and production internationally.; Jobs=Position announcements, primarily seeking swine veterinarians.; Meet=Provides a short synopsis of meetings of importance to swine veterinarians.; News=Agriculture related news events.; Nutr.=Swine nutrition; OP-ED=Opinion or editorial articles expressing the thoughts of individual Association members.; Pharm.=Pharmaceuticals and biologicals; PRRS=Articles from the AASV PRRS Task Force; Practice=Information associated with practice management or development.; Research=Research topics of interest to swine veterinarians.; Students=Information of interest to AASV student members.; USDA=US Dept. of Agriculture activities of interest to swine veterinarians.; Welfare=Animal welfare issues