Porcine Health Management

Chosen Topics:

Herd Health Management and Economy

121 - 135 of 202

INVESTIGATION OF PORCINE RESPIRATORY DISEASE COMPLEX (PRDC) OUTBREAKS AT POST-WEANING IN FARMS FROM WESTERN FRANCE USING A NEW BRONCHOALVEOLAR LAVAGE TECHNIQUE  

Recently, a French swine practitioner developed a bronchoalveolar lavage (BAL) sampling method that uses two catheters and can be performed on live, unsedated pigs without causing undue stress. The trachea is accessed via the mouth. In its diagnostic support services to practitioners, Zoetis’ technical service in France implemented this sampling method in the field when requested by practitioners. The experience from  31 farms with respiratory disease post- weaning in 2015-2016 is summarized.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

THE ECONOMIC BENEFITS OF A SINGLE SHOT VACCINATION AGAINST SWINE ENZOOTIC PNEUMONIA, WITH HYOGEN®, IN A FARM PRODUCING HEAVY PIGS IN ITALY

Enzootic pneumonia (EP) remains one of the major conditions affecting pigs’ respiratory health and farms’ economic efficiency. Vaccination against <i>M. hyopneumoniae</i> is proven to be beneficial for controlling EP and the related reduced feed efficiency and high medication cost. The aim of this study was to evaluate the economic benefits of applying a single vaccination against EP, with Hyogen®, compared to applying double vaccination with vaccine A, in a farm producing heavy pigs in Italy. Material and methods A commercial two site farm was selected for the trial.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

A NEW APPROACH TO DETECT REPRODUCTIVE DISEASE OUTBREAKS USING SOW PRODUCTION RECORDS. A FOCUS ON PRRSV

Porcine reproductive and respiratory syndrome (PRRSV) is a viral disease with negative impact on sow reproduction, being associated to a decrease in the number of born alive piglets (NBA) and an increase in the number of lost piglets (NLP). It is of interest to quickly assess whether a farm is under a PRRSV outbreak situation. The aim of this research work is to develop a new method to distinguish between healthy and disease phases in PRRSV positive and negative farms using performance data.   Material & Methods NBA and NLP records from a farm were used.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

EFFECT OF FARM MANAGEMENT PROCEDURES ON THE PRODUCTIVE PERFORMANCE IN A PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME (PRRSV) VIRUS INFECTED FARM USING PDP MODELS

Several strategies to control PRRSV have been described such as implementing a gilt acclimation protocol, a PRRSV vaccination program for gilts and sows and to control the spread of pathogens in suckling pigs. In this context, the impact of management procedures, focus on limiting the transmission of infectious agents through the population (non-mixing litters and limit cross fostering), has not been deeply analyzed. The aim of this research work is to use PDP models to decipher the impact of different management decisions on the epidemiology of PRRSV under field conditions.  
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

 ARE PIGS WITH IRON DEFICIENCY LESS ABLE TO PRODUCE ANTIBODIES IN RESPONSE TO VACCINATION COMPARED TO PIGS WITH ADEQUATE IRON STATUS? 

Iron deficiency is common among newly weaned fast growing pigs and it is possible iron status is associated with immune function. Pigs are often vaccinated at weaning for diseases they will face in the grower stage of production. The objective of this research trial was to determine if antibody production in response to vaccination against Mycoplasma hyopneumoniae is affected by the iron status of pigs at the time of vaccination. Material and Methods: Three different iron treatment groups were created.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

ARE PIGS WITH IRON DEFICIENCY LESS ABLE TO DEFEND AGAINST ENTEROTOXIGENIC E. COLI INFECTION COMPARED TO PIGS WITH ADEQUATE IRON STATUS? 

Health problems often occur after weaning, a time when iron deficiency is commonly present. The objective of this research trial was to determine if iron deficient pigs were less capable of combating a challenge of enterotoxigenic Escherichia coli (ETEC) than pigs with adequate iron status. Material and Methods: Ten pigs given 100mg (low-iron) and 10 pigs given 200mg of iron dextran (Uniferon®, Pharmacosmos) at Day 3 (medium-iron), and 10 pigs receiving 200 mg of iron at Day 3 and 14 (high-iron) were experimentally challenged with ETEC at 3 weeks of age. In addition an unchallenged control group with 2 pigs from each iron treatment group was included in the trial.  
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

COMPARISON OF THE EFFICACY OF SYNCHRONIZATION OF ALTRESYN® WITH ANOTHER ALTRENOGEST-BASED PRODUCT IN REPLACEMENT GILTS.

The introduction of gilts into a breeding herd requires an effective method to synchronize estrus. Gilt oestrus synchronization by altrenogest (Altresyn®, Ceva) improves the farm performance minimizing the number of days for gilts insemination, planning of mating program and increasing fertility and prolificacy. The aim of this study was to evaluate the effect of Altresyn® synchronization on fertility of treated gilts in comparison with gilts treated with another commercial progesterone-based product. <strong>Material and Methods.</strong> A total of 198 sexually mature gilts of two consecutive batches were investigated in a commercial farrow to finish farm with a weekly batch management.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

CONSIDERATIONS FOR ASSESSING THE IMPACT OF INFLUENZA IN GROWING PIGS

Observational studies have reported the cost of IAV-S in swine production systems to range from approximately US$3-10 per growing pig. At this time there is no standard method to assess the impact of interventions targeted against IAV-S. Here we propose key parameters which, when collected in the growing phase, provide insight into the association of pathogens and disease presence with key performance indicators (KPI). Materials and Methods: The measurable unit of growing pigs is defined as a group of pigs that starts and markets together, resulting in a single closeout. Collecting routine measurements in multiple groups, over time is necessary for assessment.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

INFLUENZA TRANSMISSION: CREATING A SEEDER PIG MODEL USING NATURALLY INFECTED PIGS 

The objective of this study was to develop a seeder pig model that simulates transmission of influenza A virus in growing pigs, to evaluate strategies to control influenza under field conditions.   Materials and Methods 554 weaned pigs from a known IAV-S PCR negative source were placed in a Pipestone Applied Research (PAR) barn. These pigs served as direct contacts and were distributed in 21 pens alternating with empty pens. Seventeen weaned pigs from a known IAV-S positive source served as seeder pigs. These pigs tested IAV-S positive by nasal swabs (NS) using BD Veritor™ System Flu A+B (Becton Dixon) and IAV screening PCR assays.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

A NOVEL CONGENITAL SYNDROME WITH PALATOSCHISIS IN PIGLETS IN THE PROGENY OF A SINGLE PIETRAIN BOAR COULD BE EXPLAINED BY A DE NOVO MUTATION

Palatoschisis are oronasal fistulas, and often supposed to be inherited resulting in death. Material & Methods In a satellite farrowing farm of a sow pool system, piglets with palatoschisis were noticed in six out of thirty litters. A DNA-based examination was conducted, revealing that all affected litters were progeny of the same Pietrain boar. Thirteen affected piglets, males and females, had a unilaterale or bilaterale palatoschisis. All sows were from the same origin and had received the same feed. All littermates and their parents were sampled and the affected piglets were finally euthanized.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

SUDDEN DEATH IN SOWS AFTER INJECTION OF CONTAMINATED MEDICAL PRODUCT

The highest mortality rate in sows is during the lactation period and several causes are known. Material & Methods Sudden death of two sows occurred after birth in a batch of 16 sows. In addition, one sow was found to be in bad general health condition. The sows were submitted for clinical examination and necropsy. The moribund sow was euthanized after collecting blood samples. <strong>Results</strong> A lymphopenia, > 10% of immature neutrophils and azotaemia were detected. The necropsy of all three sows revealed multifocal hyperaemia and acute haemorrhage in the skin over the whole body. In one sow also petechial bleedings on the epiglottis were present.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

EVALUATION OF THE EFFICACY OF A SINGLE SHOT VACCINE, HYOGEN®, IN COMPARISON WITH A TWO SHOT VACCINE, ON PROTECTION AGAINST SWINE ENZOOTIC PNEUMONIA IN THE PARMA HAM - PIGS IN ITALY

Pigs raised for the Parma ham production in Italy are slaughtered at approximately 170kg body weight. Typical late infections like <i>M.hyopneumoniae</i> represent a severe challenge in those farms. The efficient prevention of infection and its impact on growth performance requires a long lasting immunity and protection, which can be evaluated by scoring lungs at slaughter and by recording pigs’ growth rate. Therefore, the aim of this trial was to evaluate the efficacy of a single shot vaccine, Hyogen®, in comparison with a two shot vaccine (A), on protection against Enzootic Pneumonia (EP) in Parma ham-pigs.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

EUBIOTICS AS AN ALTERNATIVE STRATEGY TO ZINC OXIDE USE IN WEANING PIGS

The recent EU ban on therapeutic levels of zinc in animal diets has led to concern regarding potential performance losses and animal welfare. The aim of this trial was to evaluate a eubiotic in replacement for therapeutic zinc oxide in an E. coli challenge piglet study. Material & methods Thirty six piglets (PIC (Yorkshire × Landrace) × Duroc)) were allocated to treatment diets at weaning (21 days) for 28 days in a random block design (2 pigs per pen, 6 replicates).  All diets were formulated in excess of recommendations in NRC (2012) and were fed in a mash form. Treatments were; Control (CON), basal diet no additive; Eubiotic (EUB), organic acid blend on a mineral carrier (Anpario plc, Worksop, UK) 4g/kg; Zinc oxide (ZnO) commercially available 3g/kg.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

ASSESSMENT OF SUBJECTIVE HEALTH STATUS PERCEPTION IN WEANER PIG HOLDINGS WITH RECURRING RESPIRATORY DISEASE OUTBREAKS

Respiratory diseases are identified as a priority issue in raising weaners. One approach to reduce the application of antibiotics for treatment of such respiratory diseases is to improve assessment of early disease development to maintain a good health status of the pigs after weaning. Therefore in this study the subjective respiratory disease assessing by the farmers was evaluated by comparing their individual estimation with an objective respiratory health score.   Material/Methods 30 piglet producer farms with preceding recurring respiratory diseases in weaner units were visited twice. The first visit (day1) took place when according to the farmer the health status of the weaners was not affected; the second visit (day2) when the farmer recognized a respiratory disease outbreak requiring antibiotic treatment.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy

A RETROSPECTIVE STUDY OF INFECTIOUS AGENTS ISOLATED IN CASES OF DIARRHEA IN SUCKLING PIGLETS IN SPAIN  

The aim of this study was to determine prevalence of E.coli, C.perfringens and Rotavirus strains isolated in pre-weaning diarrhea cases in Spain, and to compare them to historical results.   Material and Methods. From 2015 to 2017, 164 samples of fresh feces from suckling-piglets suffering diarrhea were processed at the Laboratori Veterinari de Diagnosi de Malalties Infeccioses (UAB). E.coli isolation and typing was done on all samples with a PCR for the fimbriae K88ab (F4ab), K88ac (F4ac), K99 (F5), 987P (F6), F41, F18 and EAE and the toxins Sta, STb, LT, EAST1, VT1 and VT2.
Type
Abstract
Year
2018
Topic
Herd Health Management and Economy