Phenotypic and genetic parameters for body traits in the giant freshwater prawn (Macrobrachium rosenbergii) in India          下载免费PDF全文

Bindu R Pillai  Pa Luan Lalrinsanga  Raul W Ponzoni  Hooi Ling Khaw  Kanta Das Mahapatra  Swagatika Mohanty  Gunamaya Patra  Namita Naik  Haramohan Pradhan  Pallipuram Jayasankar 《Aquaculture Research》2017,48(12):5741-5750

Phenotypic and genetic parameters were estimated for three body traits (harvest weight, carapace length and standard length) and for adult male morphotypes of the giant freshwater prawn Macrobrachium rosenbergii in a fully pedigreed synthetic population in India. The data set included 9,173 progeny produced over four generations from 162 sires and 234 dams. Variance components and genetic parameters were estimated fitting an animal model using the residual maximum‐likelihood methodology. The heritabilities for harvest body weight (HW), carapace length (CL) and standard length (SL) were moderate (0.22 ± 0.056, 0.22 ± 0.055 and 0.25 ± 0.059 respectively). The common environmental effects for HW, CL and SL were 0.10 ± 0.020, 0.08 ± 0.018 and 0.10 ± 0.021 respectively. As M. rosenbergii is sexually dimorphic, we estimated heritabilities within each sex. Heritability of HW in females (0.27 ± 0.068) was greater than that in males (0.15 ± 0.057). CL and SL followed the same pattern. The occurrence of male morphotypes is a unique characteristic of adult populations of M. rosenbergii. Populations from culture ponds exhibit a wide range of sizes. To examine whether there was a heritable component in male morphotype frequencies, we treated male morphotypes as traits. The additive genetic variance (and hence the heritability) was zero for male morphotype, indicating that selective breeding to increase the proportion of desirable male morphotypes would not be effective. The genetic correlations among body traits were all positive, high and approaching unity. The results are discussed in relation to selection plans for the giant freshwater prawn.  相似文献   

Acute paraplegia in a Thoroughbred racehorse after general anaesthesia     

SR RAIDAL  SL RAIDAL  RB RICHARDS  AV COSGRIFF  KJ ROSE 《Australian veterinary journal》1997,75(3):178-179

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Treatment with vitamins A, D and E did not reduce weight loss in transported cattle     

TF JUBB  DS PINCH†  SR PETTY 《Australian veterinary journal》1993,70(5):171-173

SUMMARY Two field trials using an injectable vitamin A, D and E solution conducted in the pastoral environment of northern Australia are described. It was found that treatment of lighter (< 150 kg) or heavier (> 372 kg) weight cattle did not reduce weight loss during road transport. These findings contradict anecdotal evidence of reduced weight loss during transport with the use of vitamins A, D and E. The lack of scientific basis for their use is discussed.  相似文献   

A topographical study of increased vascular permeability in passive cutaneous anaphylaxis in the chicken     

A. G. R. Pillai  R. P. Awadhiya  J. L. Vegad 《Veterinary research communications》1987,11(3):221-226

Passive cutaneous anaphylaxis was produced in chickens with bovine serum albumin (BSA) and anti-BSA chicken serum. Colloidal carbon was then given intravenously to identify the leaky vessels. Microscopic examination of cleared unstained skin revealed the topography of labelled vessels. The carbon labelling was confined to venules and small veins only. Examination of the time-course of permeability response revealed a biphasic pattern.  相似文献   

Gram-negative bacterial infections and cardiovascular parasitism in green sea turtles (Chelonia mydas)     

SR RAIDAL  M. OHARA  RP HOBBS  RIT PRINCE 《Australian veterinary journal》1998,76(6):415-417

Objective To investigate causes of ill health and mortality in juvenile wild green sea turtles ( Chelonia mydas ) found along the mid-north west coast of Western Australia between June and October of 1997.
Procedure Department of Conservation and Land Management rangers submitted four dead or dying green sea turtles from separate incidents for veterinary examination, necropsy, and bacteriological, parasitological and histopatho-logical examination.
Results Numerous different species of trematodes belonging to the families Pronocephalidae, Microscaphidiidae and Paramphistomidae were detected in the intestines of two turtles examined, and in all turtles there was severe spirorchid fluke infection including Haemoxenicon sp, Amphiorchis sp and Hapalotrema sp. Histopathological examination demonstrated severe multifocal to diffuse granulomatous vasculitis, aggregations of spirorchid fluke eggs and microabscesses throughout various tissues including intestines, kidney, liver, lung and brain. Cultures and or histopathological examination demonstrated disseminated Gram-negative bacterial infections including salmonella, E coli , Citrobacter freundii and Moraxella sp.
Conclusion Infections caused by salmonellae, E coli and other Gram-negative bacteria should be considered as causes of systemic illness and death in wild green sea turtles infected with spirorchid cardiovascular flukes and other internal parasites.  相似文献   

Dealing with diseases in wildlife     

SR RAIDAL 《Australian veterinary journal》1998,76(11):738-738

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Fragmentation of the dorsal distal aspect of the talus on weanling survey and pre‐sale radiographs of juvenile Thoroughbreds: prevalence and 2‐ and 3‐year‐olds racing performance     

CM Steel  S Devery  SR Hance  AR Adkins  PL Hitchens 《Australian veterinary journal》2019,97(3):68-74

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Prevalence of obesity and owners’ perceptions of body condition in pleasure horses and ponies in south‐eastern Australia          下载免费PDF全文

SJ Potter  NJ Bamford  PA Harris  SR Bailey 《Australian veterinary journal》2016,94(11):427-432

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Hydrocephalus secondary to obstruction of the lateral apertures in two dogs          下载免费PDF全文

M Kent  EN Glass  AC Haley  LS Shaikh  M Sequel  U Blas‐Machado  TM Bishop  SP Holmes  SR Platt 《Australian veterinary journal》2016,94(11):415-422

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First Production of Larvae Using Cryopreserved Sperm: Effects of Preservation Temperature and Cryopreservation on European Eel Sperm Fertilization Capacity          下载免费PDF全文

JF Asturiano  SR Sørensen  L Pérez  P Lauesen  J Tomkiewicz 《Reproduction in domestic animals》2016,51(4):485-491

Sperm cryopreservation is a useful tool in captive fish reproduction management, that is to synchronize gamete production, especially in the case of species as the European eel, where the time of female spawning readiness is unpredictable. Several protocols to cryopreserve sperm of this species have been described, but until recently fertilization trials were not feasible. This study evaluated the effect of cold storage of diluted sperm prior to fertilizations and tested whether a previously defined protocol for European eel sperm cryopreservation can be successfully applied in fertilization trials to produce viable offspring. In our experiment, the sperm motility was evaluated after the extraction and the best samples were selected and pooled. Until stripping of eggs and fertilization, diluted sperm samples were maintained at either 4 or 20°C, or cryopreserved, following existing protocols. Fertilization of two egg batches was attempted. Diluted sperm caused a similar percentage of fertilized eggs and a similar number of embryos and larvae, independently of storage temperature (4 or 20°C). The cryopreserved sperm resulted in a lower percentage of fertilized eggs, but embryos developed and a few larvae (‘cryolarvae’) were obtained 55 h after fertilization in one of the two egg batches. This result evidences that the tested cryopreservation protocol is applicable for eel reproduction management, although improvements will be required to enhance fertilization success.  相似文献