Embodied Resources in Fish and Shrimp Feeds          下载免费PDF全文

Sirirat Chatvijitkul  Claude E. Boyd  D. Allen Davis  Aaron A. McNevin 《Journal of the World Aquaculture Society》2017,48(1):7-19

Global averages were obtained for amounts of energy, land, water, wildfish, nitrogen, and phosphorus embodied in aquaculture feed ingredients. These data allowed amounts of these embodied resources to be calculated for typical feed formulations for channel catfish, Ictalurus punctatus; hybrid catfish, I. punctatus♀ × I. furcatus♂; Vietnamese catfish, Pangasius spp.; Atlantic salmon, Salmo salar; rainbow trout, Oncorhynchus mykiss; tilapia, Oreochromis spp.; whiteleg shrimp, Litopenaeus vannamei; and black tiger shrimp, Penaeus monodon. Embodied resource use per m.t. of feed varied among species: energy, 4.90–12.48 GJ/m.t.; land, 0.082–0.312 ha/m.t.; water, 502–1227 m³/m.t.; wildfish, 0–2880 kg/m.t.; nitrogen, 3.08–8.63 kg/m.t.; phosphorus, 1.16–5.62 kg/m.t. These calculations did not account for variations in site‐specific factors related to embodied resources and feed composition and use. But they suggest that reducing feed conversion ratio (FCR) by 0.1 unit for the seven species (species groups) could potentially reduce feed use by around 1.1 million tonne (Mt) while conserving 9.8 million GJ of energy, 270,000 ha of agricultural land, 1.4 billion m³ of freshwater, and 1.24 Mt of wildfish. Reduction of the FCR is a powerful means of lessening farm‐level production costs and negative impacts of feed production and use.  相似文献   

RADIOGRAPHIC DIAGNOSIS: INTRAMEDULLARY EXTRUSION OF AN INTERVERTEBRAL DISC     

Julius M.  Liptak  BVSc  MvetClinstud  MACVSc  Graeme S.  Allan  MVSc  FACVSc  Mark B.  Krockenberger  BSc  BVSc  Phillip E.  Davis  MVSc  Richard  Malik  BVSc  MvetClinStud  PhD  FACVSc 《Veterinary radiology & ultrasound》2002,43(3):272-274

  相似文献   

Temporary Bile Diversion in Cats with Experimental Extrahepatic Bile Duct Obstruction     

DARIEN LAWRENCE BSc  BVSC    JAMIE R. BELLAH DVM  Dipiomate ACVS    D. J. MEYER DVM  Dipiomate ACVIM  Dipiomate ACVP  L. ROTH DVM  PhD  Dipiomate ACVP 《Veterinary surgery : VS》1992,21(6):446-451

The use of a cholecystostomy catheter for temporary bile diversion was investigated in four cats with experimentally induced extrahepatic bile duct obstruction. Eighteen days after ligation of the common bile duct, a 6.5 F accordion catheter was placed in the gallbladder with a 22 g Hawkins needle-guide system through a paracostal incision. Biochemical parameters and fasting serum bile acids were monitored for 16 days. There were significant decreases in mean total bilirubin, aspartate aminotransferase, and fasting serum bile acids within 72 hours of bile diversion, and in mean alanine aminotransferase within 96 hours. Attitude and appetite improved, and the catheter was tolerated well. Positive bile cultures developed in three cats. Histologic changes in the gallbladder included mucosal ulcerations, a mixed inflammatory cellular infiltration, and fibrosis of the submucosa.  相似文献   

Comparative efficacy of three antiseptics as surgical skin preparations in dogs          下载免费PDF全文

Charles Boucher BVSc  MMedVet  Maryke M. Henton BVSc  MMedVet  Piet J. Becker BSc  MSc  PhD 《Veterinary surgery : VS》2018,47(6):792-801

  相似文献   

Incidence and risk factors for neurological signs after attenuation of single congenital portosystemic shunts in 253 dogs          下载免费PDF全文

Rhiannon Strickland BVetMed  Michael S. Tivers BVSc  PhD  DipECVS  Sophie E. Adamantos BVSc  DACVECC  DECVECC  Tom R. Harcourt‐Brown MA  VetMB  DipECVN  Robert C. Fowkes BSc  PhD  Victoria J. Lipscomb MA  VetMB  DipECVS 《Veterinary surgery : VS》2018,47(6):745-755

  相似文献   

Once daily oral extended‐release hydrocodone as analgesia following tibial plateau leveling osteotomy in dogs          下载免费PDF全文

Ann E. Heffernan DVM  DACVS  Erin M. Katz DVM  Yiwen Sun PhD  Aaron K. Rendahl PhD  Michael G. Conzemius DVM  PhD  DACVS 《Veterinary surgery : VS》2018,47(4):516-523

  相似文献   

Evaluation of the rostral projection of the sacral lamina as a component of degenerative lumbosacral stenosis in German shepherd dogs          下载免费PDF全文

Harvey Saunders BVSc  Andrew J. Worth BVSc  PhD  FANZCVS  Janis P. Bridges BSc  GradDip Appl Stat  Angela Hartman DVM  DipACVR 《Veterinary surgery : VS》2018,47(5):654-663

  相似文献   

Subcutaneous administration of ciclosporin in 11 allergic cats – a pilot open‐label uncontrolled clinical trial          下载免费PDF全文

Sandra N. Koch  Sheila M. F. Torres  Sandra Diaz  Sophie Gilbert  Aaron Rendahl 《Veterinary dermatology》2018,29(2):107-e43

  相似文献   

Differentiation between dogs with thrombosis and normal dogs using the overall hemostasis potential assay          下载免费PDF全文

Anna L. Dengate BVSc  BMedSc  Marie‐Christine Morel‐Kopp PhD  Julia A. Beatty PhD  BVetMed  BSc  Vanessa Barrs BVSc  MVetClinStud  Jody A. Braddock BVSc  MVetClinStud  Richard K. Churcher BVSc  Bethany J. Wilson BVSc  PhD  Christopher M. Ward BMedSc  MBChB  PhD 《Journal of Veterinary Emergency and Critical Care》2016,26(3):446-452

  相似文献   

Thromboelastographic assessment of the contribution of platelets and clotting proteases to the hypercoagulable state of dogs with immune‐mediated hemolytic anemia          下载免费PDF全文

Negar Hamzianpour BSc  BVSc  MRCVS  Daniel L. Chan DVM  DACVECC  DECVECC  DACVN  MRCVS 《Journal of Veterinary Emergency and Critical Care》2016,26(2):295-299

  相似文献