Document Detail

Specification of pen rail spacing and trough heights to prevent escape and enable good access to feed by sheep during sea shipments from New Zealand.
MedLine Citation:
PMID:  16031856     Owner:  NLM     Status:  PubMed-not-MEDLINE    
A trial was carried out to determine the optimal height of feeding troughs above floor level and the spacing between pen railings which would enable sheep to access feed troughs but prevent them from getting out of pens during sea voyages. The trial involved a group of 16 large (79 kg) wether sheep and 24 small (30 kg) wether lambs which were held in pens and trained to eat lucerne pellets. Feed troughs similar to those used on ships were constructed 260 mm deep and 220 mm wide. A system of adjustable railings were used to alter the trough height and to determine the optimal spacing to allow the large sheep to get their heads through, but to prevent small sheep from escaping. In order that sheep of various sizes can access feed from the bottom of feed troughs, the height of the top edge of the trough should not exceed 360 mm above floor level for 30 kg sheep or 460 mm for mature sheep. This range is due to differences between the groups in their shoulder height, and variation between individuals within each group. Shoulder heights of the small sheep used in this trial ranged from 505 to 590 mm, and for the 16 mature animals the range was 610-715 mm. It is important that the feed troughs are low enough for all animals to access the feed on offer. Mature sheep were able to pass their heads between rails spaced at 200 mm without difficulty, but some difficulty was experienced when the space was reduced to 180 mm. The maximum rail spacing which prevented the escape of 30 kg lambs could not be determined with certainty because they could pass through a space of only 180 mm when laid on their side, but the smallest space through which they passed voluntarily was 220 mm. Hence the optimal spacing between railings which would allow all sheep good access to feed and would prevent almost all small sheep from escaping is about 190-210 mm.
G C Waghorn; G B Davis; M J Harcombe
Related Documents :
24617926 - Metabolomics analysis reveals large effect of roughage types on rumen microbial metabol...
18661246 - Feed intake, digestibility and body weight change in farta sheep fed hay supplemented w...
221626 - Effects of a protein-free diet on the changes in cyclic amp and cyclic gmp levels induc...
24130946 - The effects of panax ginseng on lipid profile, pro-oxidant: antioxidant status and high...
1865286 - Nondairy-creamer-induced kwashiorkor: 5-year follow-up.
15868696 - A cross-sectional analysis demonstrated the healthy volunteer effect in smokers.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  New Zealand veterinary journal     Volume:  43     ISSN:  0048-0169     ISO Abbreviation:  N Z Vet J     Publication Date:  1995 Nov 
Date Detail:
Created Date:  2005-07-20     Completed Date:  2005-10-04     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0021406     Medline TA:  N Z Vet J     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  219-24     Citation Subset:  -    
AgResearch Ltd Grasslands, Private Bag 11008, Palmerston North, New Zealand.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  The diet of the parasitic mite Trichosurolaelaps crassipes Womersley, 1956 and its potential to act ...
Next Document:  The identity of nematode genera involved in cases of ovine anthelmintic resistance in the southern N...