Document Detail


Culling and mortality in breeding rabbits.
MedLine Citation:
PMID:  18842309     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this study, we determined culling and mortality in adult breeding rabbits on 130 commercial farms in Spain during 2000-2005. The median size of the farms was 595 does (minimum to maximum: 131-5500 does). The median culling age per doe was 14.9 months old and 6 kindlings. The median monthly removal risk (MMR) in does was 9.3%, with 3.4% dead and 5.7% culled (including euthanized does). The MMR was negatively correlated with the degree of intensification of the reproductive rhythm (r=-0.37), age at first mating (r=-0.31) and kindling interval (r=-0.36). The MMR in males was 5.8% (1.2% dead and 4.2% culled or euthanized). Our estimation of the causes of culling does was based on a population of 82,352 does, 50,834 of which were culled or euthanized. The highest causes, calculated using the median of the monthly cumulative incidence (MCI), were 1.3% low productivity (0.9% infertility and 0.4% other causes), 0.5% mastitis, 0.5% poor body condition and 0.3% sore hocks. The causes of culling males were estimated based a population of 6514 males, 5313 of which were culled. The highest causes were 2.0% MCI low productivity (0.9% infertility and 0.5% no libido); 0.3% abscesses, 0.3% sore hocks and 0.2% poor body condition. The mortality and culling risks after first kindling were 8.7% and 7%, respectively. The highest risks of mortality and culling in does occurred during the first three kindlings, but remained stable thereafter. The gestation stage affected mortality; the risk of mortality per day increased as pregnancy progressed. There was a bimodal distribution with a peak of dead females between days 10 and 15 of gestation (0.1-0.2% mortality risk per day (MD)) and another larger peak between days 25 and 33 (0.3% MD). In 1046 on-farm necropsies performed on females we found alterations of the respiratory and digestive tracts compatible with being causes of death in 29.4% and 27%, respectively.
Authors:
J M Rosell; L F de la Fuente
Related Documents :
16389019 - Failure of decidual arteriolar remodeling in the cba/j x dba/2 murine model of recurren...
22905469 - Doppler examination in the evaluation of outcomes in pregnancies complicated by gestati...
15084019 - Effects of mating behaviour and the ovarian follicular state of female alpacas on conce...
8286539 - Reproduction of female sika deer (cervus nippon yesoensis heude, 1884) in ashoro distri...
19140979 - Role of male-biased dispersal in inbreeding avoidance in the grey-sided vole (myodes ru...
10549899 - Maternal behavior in female c57bl/6j and dba/2j inbred mice.
15253919 - Infertility among male uk veterans of the 1990-1 gulf war: reproductive cohort study.
18616899 - Mechanisms behind flare of renal lupus during murine pregnancy.
22593649 - An audit of singleton breech deliveries in a hospital with a high rate of vaginal deliv...
Publication Detail:
Type:  Journal Article     Date:  2008-10-07
Journal Detail:
Title:  Preventive veterinary medicine     Volume:  88     ISSN:  0167-5877     ISO Abbreviation:  Prev. Vet. Med.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2008-12-29     Completed Date:  2009-04-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8217463     Medline TA:  Prev Vet Med     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  120-7     Citation Subset:  IM    
Affiliation:
NANTA SA, Ronda de Poniente 9, 28760 Tres Cantos, Madrid, Spain. j.rosell@nutreco.com
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animal Husbandry / methods*
Animals
Female
Male
Pregnancy
Rabbits / growth & development,  physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Management practices associated with udder health of first-parity dairy cows in early lactation.
Next Document:  The effect of digital lesions and floor type on locomotion score in Dutch dairy cows.