Protein evolution     

Swain T 《Science (New York, N.Y.)》1978,201(4357):703-704

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The use of ultrasonography in the reproductive evaluation of boars          下载免费PDF全文

RO Pinho  BS Camilo  DMA Lima  FAC Villadiego  JCM Vergara  HH Shiomi  RE Cardoso  PS Lopes  JD Guimarães 《Reproduction in domestic animals》2018,53(2):393-400

The objective was to study the use of ultrasound as a complementary test in the breeding soundness evaluation in male pigs and study the pattern of echogenicity of the testicular parenchyma in boars of different racial groups. Twenty‐six adult boars from four different racial groups were used, 10 from the Piau breed (group 1), four from the commercial and finishing group (group 2), six Pietrain breed (group 3) and six from the Duroc breed (group 4). All animals were evaluated for breeding soundness evaluation and the ultrasound examination of the testicles. The groups of animals that were evaluated showed no difference in the main semen parameters that were evaluated, except for the sperm volume, concentration of the ejaculated sperm and the supravital staining; the lowest figures were for the animals from the Piau breed (group 1). In relation to the testicular biometrics, Duroc animals (group 4) had a greater scrotal width compared to the other groups. But when we assessed the intensity of pixels of the testicles, there was a difference between groups. The groups 2 (finishing animals), 3 (Pietrain) and 4 had no difference between themselves. Group 3 had greater pixel intensity in relation to group 1. Of the 26 animals studied, five showed an abnormality during ultrasound evaluation, like hydrocele, hyperechoic mass in the testicular parenchyma, cyst in the head of the epididymis and the presence of fluid in the head and tail of the epididymis. The various animal groups studied did not differ in the principal reproductive parameters evaluated, showing that despite the great variability of reproductive traits between breeds and within the same breed, the breeding soundness evaluation, the more complete it is, is essential for the selection of breeders and the ultrasonography of the reproductive system becomes an important addition in this examination.  相似文献   

Pneumonia Caused by Klebsiella spp. in 46 Horses          下载免费PDF全文

K.E. Estell  A. Young  T. Kozikowski  E.A. Swain  B.A. Byrne  C.M. Reilly  P.H. Kass  M. Aleman 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2016,30(1):314-321

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Atrial Fibrillation in Eight New World Camelids          下载免费PDF全文

R. Bozorgmanesh  K.G. Magdesian  K.E. Estell  J.A. Stern  E.A. Swain  L.G. Griffiths 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2016,30(1):335-338

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Multifocal eosinophilic enteritis associated with a small intestinal obstruction in a standardbred horse     

Swain JM  Licka T  Rhind SM  Hudson NP 《The Veterinary record》2003,152(21):648-651

A seven-year-old standardbred gelding developed marked signs of colic associated with an acute small intestinal obstruction. Surgical exploration revealed three intramural, circumferential constricting lesions in the small intestine, the two most severe of which were in the jejunum and were resected. The horse was euthanased owing to postoperative complications. Histopathological examination confirmed the diagnosis of idiopathic multifocal eosinophilic enteritis.  相似文献   

Dietary bovine lactoferrin induces changes in immunity level and disease resistance in Asian catfish Clarias batrachus   总被引：2，自引：0，他引：2  

Kumari J  Swain T  Sahoo PK 《Veterinary immunology and immunopathology》2003,94(1-2):1-9

The effects of including bovine lactoferrin (Lf) in the diet of the Asian catfish (Clarias batrachus) on specific and non-specific immunity as well as disease resistance were investigated. The catfish were fed four different diets for 2 weeks: a commercial diet as control and the same diet supplemented with 50, 100 and 200mg bovine Lf/kg feed. After 1 and 2 weeks, serum bacterial agglutination titre against Aeromonas hydrophila as a measure of specific immunity; natural serum haemolysin titre, lysozyme activity and oxidative radical production by neutrophils as a measure of non-specific immunity as well as disease resistance against A. hydrophila challenge to vaccinated and non-vaccinated animals were evaluated. The results showed that Lf supplements, particularly at 100mg level, significantly (P<0.05) enhanced serum lysozyme level, oxidative radical production and level of protection against A. hydrophila challenge in non-vaccinated animals irrespective of length of exposure. The specific immunity was not influenced by Lf feeding as evidenced from the bacterial agglutination titre and level of protection in vaccinated animals. As Lf feeding at 100mg/kg for 1 week is able to enhance the non-specific immunity and disease resistance of catfish efficiently, these results support the possible use of Lf as an immunostimulant for farmed catfish.  相似文献   

Regional antibody and cellular immune responses to equine influenza virus infection,and particle mediated DNA vaccination   总被引：4，自引：0，他引：4  

Soboll G  Horohov DW  Aldridge BM  Olsen CW  McGregor MW  Drape RJ  Macklin MD  Swain WF  Lunn DP 《Veterinary immunology and immunopathology》2003,94(1-2):47-62

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Effect of different types of litter material for rearing broilers     

Swain BK  Sundaram RN 《British poultry science》2000,41(3):261-262

1. Coir dust was evaluated as broiler litter in comparison with sawdust and rice husk using 135 commercial broilers. Forty-five broiler chicks were reared to 42 d on a 50 mm layer of each of these litters. 2. Birds reared on coir dust showed no difference in food consumption, body weight gain, food conversion efficiency production number and survivability in comparison to those reared on saw dust and rice husk. 3. It was concluded that coir dust is suitable as broiler litter when cheaply available.  相似文献   

Cryopreservation of Piau‐Breed Wild Boar Sperm: Assessment of Cooling Curves and Centrifugation Regimes          下载免费PDF全文

HH Shiomi  RO Pinho  DMA Lima  JB Siqueira  MCR Santos  EV Costa  PS Lopes  SEF Guimarães  JD Guimarães 《Reproduction in domestic animals》2015,50(4):545-553

This study aimed to assess the effects of different cooling curves and centrifugation regimes used in cryopreservation protocols on the post‐thaw viability of Piau‐breed wild boar (Sus scrofa) sperm using in vitro assessment tests. Two centrifugations (800  g for 10 min and 2400  g for 3 min) and two cooling curves (conventional cooling using nitrogen vapour – freezing 1 and automated cooling using a programmed freezing machine – freezing 2) were tested. Therefore, the treatments were divided into M3 – centrifugation at 2400  g for 3 min and freezing 2; M10 – centrifugation at 800  g for 10 min and freezing 2; R3 – centrifugation at 2400  g for 3 min and freezing 1; and R10 – centrifugation at 800  g for 10 min and freezing 1. No significant differences (p > 0.05) between treatments occurred post‐thawing regarding the total sperm motility means recorded. The mean values of the different treatments were not different from each other regarding the supravital staining (SV), hypo‐osmotic test (HO), sperm–egg binding assay or sperm morphology. This study showed that both the cooling curve and the centrifugation regime affected the quality of post‐thaw sperm, and centrifugation for shorter times and cooling curves using automated cooling are the most suitable for minimizing sperm injury.  相似文献   

An abattoir survey of equine dental abnormalities in Queensland,Australia          下载免费PDF全文

T Chinkangsadarn  GJ Wilson  RM Greer  CC Pollitt  PS Bird 《Australian veterinary journal》2015,93(6):189-194

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