Husbandry of ratites and potential welfare issues: a review
P. C. Glatz A B and Z. H. Miao AA SARDI Livestock Systems, Roseworthy Campus, Roseworthy, SA 5371, Australia.
B Corresponding author. Email: glatz.phil@saugov.sa.gov.au
Australian Journal of Experimental Agriculture 48(10) 1257-1265 https://doi.org/10.1071/EA08136
Submitted: 12 April 2008 Accepted: 29 May 2008 Published: 11 September 2008
Abstract
Since the mid-1980s, there has been worldwide farming of ratites, particularly with ostriches, emus and rheas for feathers, meat, skin and oil. Most of these ratites are produced commercially outside their native habitat. This has raised concerns about welfare, particularly whether birds are provided the five freedoms: food and water; shelter; health care; alleviation of pain and suffering; and the freedom of movement. This paper reviews the factors that influence bird welfare before hatch with breeder, egg and hatchery management and after hatch with brooding and rearing systems, stocking density, handling, transport, disease and slaughter. Assessment of bird welfare in each of the production sectors in the industry is based on how well the five freedoms are being met. The review identifies egg handling practices and hatchery hygiene that can have a major impact on the subsequent health of hatched chicks. In addition, feeding of appropriate diets, reducing stocking density and improving housing can improve bird health and freedom of movement. When the husbandry practice of toe trimming is not practiced according to the best practice method, chronic pain may result and impair walking ability of birds. Stress and injuries to birds can be reduced when birds are handled correctly on farm and in the lairage and are transported using appropriate vehicles. Farmers, transporters and abattoir staff can have a major impact on maintaining bird welfare if best practice farming systems and husbandry practices are implemented.
Ashash E,
Malkinson M,
Meir R,
Perl S, Weisman Y
(1996) Case report - causes of losses including a Borna disease paralytic syndrome affecting young ostriches of one breeding organization over a five-year period (1989–1993). Avian Diseases 40, 240–245.
| Crossref | GoogleScholarGoogle Scholar |
CAS |
PubMed |
[Verified 12 August 2008]
Glatz PC
(2001) Effect of declawing on behaviour of farmed emus. Asian-Australasian Journal of Animal Sciences 14(2), 288–296.
Huchzermeyer FW
(1996) High mortality in ostrich eggs and hatching due to egg washing. Journal of the South African Veterinary Association 67, 3.
|
CAS |
PubMed |
Ipek A, Sahan U
(2004) Effect of breeder age and breeding season on egg production and incubation in farmed ostriches. British Poultry Science 45(5), 643–647.
| Crossref | GoogleScholarGoogle Scholar |
CAS |
PubMed |
Lábaque MC,
Navarro JL, Martella MB
(2003) Microbial contamination of artificially incubated Greater Rhea (Rhea americana) eggs. British Poultry Science 44, 355–358.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Lábaque MC,
Navarro JL, Martella MB
(2004) Effects of storage time on hatchability of artificially incubated Greater Rhea (Rhea americana) eggs. British Poultry Science 45, 638–642.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Lambooij E
(1998) Captive needle improves ostrich meat quality. Meat International 8(7), 733–735.
Lambooij E,
Potgieter CM,
Britz CM,
Nortje GL, Pieterse C
(1999a) Effects of electrical and mechanical stunning on meat quality in ostriches. Meat Science 52, 331–337.
| Crossref | GoogleScholarGoogle Scholar |
Lambooij E,
Pieterse C,
Potgieter CM,
Snyman JD, Nortje GL
(1999b) Some neural and behavioural aspects of electrical and mechanical stunning in ostriches. Meat Science 52, 339–345.
| Crossref | GoogleScholarGoogle Scholar |
Lambrechts H,
Swart D,
Cloete SWP,
Greyling JPC, van Schalkwyk SJ
(2004) The influence of stocking rate and male:female ratio on the production of breeding ostriches (Struthio camelus spp.) under commercial farming conditions. South African Journal of Animal Science 34(2), 87–96.
Musa HH,
Suleiman AH,
Lanyasunya TP,
Olowofeso O, Mekki DM
(2005) Feeding practices, growth rate and management of ostrich chicks in Sudan. Pakistan Journal of Nutrition 4(3), 154–157.
Mushi EZ,
Isa JFW,
Chabo RG,
Binta MG,
Modisa L, Kamau JM
(1998) Impaction of the stomachs in farmed ostriches (Struthio camelus) in Botswana. Avian Diseases 42(3), 597–599.
| Crossref | GoogleScholarGoogle Scholar |
CAS |
PubMed |
Navarro JL, Martella MB
(2002) Reproductivity and raising of Greater Rhea (Rhea americana) and Lesser Rhea (Pterocnemia pennata) – a review. Archiv fur Geflugelkunde 66, 124–132.
Navarro JL,
Martella MB, Cabrera MB
(1998) Fertility of greater rhea orphan eggs: conservation and management implications. Journal of Field Ornithology 69, 117–120.
Payne H
(1993) Welfare of ostriches and other ratites during transport. State Veterinary Journal 3, 8–12.
Philbey AW,
Button C,
Gestier AW,
Munro BE,
Glastonbury JRW,
Hindmarsh M, Love SCJ
(1991) Anasarca and myopathy in ostrich chicks. Australian Veterinary Journal 68, 237–240.
| Crossref | GoogleScholarGoogle Scholar |
CAS |
PubMed |
Raikow RJ
(1969) Sexual and agonistic behavior of the common rhea. The Vilson Bulletin 81(2), 196–206.
Samson J
(1996) Targets of performance in ostriches. Proceedings of Annual Conference Association Avian Veterinary 14, 1–147.
Samson J
(1997) Prevalent diseases of ostrich chicks farmed in Canada. The Canadian Veterinary Journal. La Revue Veterinaire Canadienne 38, 425–428.
|
CAS |
PubMed |
Uhart M,
Aprile G,
Beldomenico P,
Solis G,
Marull C,
Beade M,
Carminati A, Moreno D
(2006) Evaluation of the health of free-ranging greater rheas (Rhea americana) in Argentina. The Veterinary Record 158, 297–303.
|
CAS |
PubMed |
van Schalkwyk SJ,
Cloete SWP, Brown CR
(1999) The effect of temperature on the hatching performance of ostrich chicks and its implications for artificial incubation in forced draught incubators. South African Journal of Animal Science 29(2), 92–99.
Wilson HR,
Eldred AR, Wilcox CJ
(1997) Storage time and ostrich egg hatchability. Journal of Applied Poultry Research 6, 216–220.
Wotton SB, Hewitt L
(1999) Transportation of ostriches – a review. The Veterinary Record 145, 725–731.
|
CAS |
PubMed |
Wotton S, Sparrey J
(2002) Stunning and slaughter of ostriches. Meat Science 60, 389–394.
| Crossref | GoogleScholarGoogle Scholar |