干旱区生态环境知识资源中心(Arid): Dingo baiting did not reduce fetal/calf loss in beef cattle in northern South Australia

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DOI	10.1071/AN17008
	Dingo baiting did not reduce fetal/calf loss in beef cattle in northern South Australia
	Campbell, Greg 1; Coffey, Andrew 2; Miller, Heather 3,4; Read, John L.5,6; Brook, Anthony 7; Fleming, Peter J. S.8,9; Bird, Peter 10,11; Eldridge, Steve 12; Allen, Benjamin L.3,13
通讯作者	Campbell, Greg
来源期刊	ANIMAL PRODUCTION SCIENCE
ISSN	1836-0939
EISSN	1836-5787
出版年	2019
卷号	59 期号:2 页码:319-330
英文摘要	Beef cattle production is the major agricultural pursuit in the arid rangelands of Australia. Dingo predation is often considered a significant threat to production in rangeland beef herds, but there is a need for improved understanding of the effects of dingo baiting on reproductive wastage. We experimentally compared fetal/calf loss on baited and non-baited treatment areas within three northern South Australian beef herds over a 2-4-year period. At re-musters, lactation was used to determine the outcomes of known pregnancies. Potential explanatory factors for fetal/calf loss (dingo baiting, dingo activity, summer heat, cow age, seasonal conditions, activity of dingo prey and selected livestock diseases) were investigated. From 3145 tracked pregnancies, fetal/calf loss averaged 18.6%, with no overall significant effect of baiting. Fetal/calf loss averaged 27.3% for primiparous (first pregnancy) heifers and 16.8% for multiparous (2nd or later calf) cows. On average, dingo-activity indices were 59.3% lower in baited treatments than in controls, although background site differences in habitat, weather and previous dingo control could have contributed to these lower indices. The overall scale and timing of fetal/calf loss was not correlated with dingo activity, time of year, a satellite-derived measure of landscape greenness (normalised difference vegetation index), or activity of alternative dingo prey. Limited blood testing suggested that successful pregnancy outcomes, especially in primiparous heifers, may have been reduced by the livestock diseases pestivirus and leptospirosis. The percentage occurrence of cattle hair in dingo scats was higher when seasonal conditions were poorer and alternative prey less common, but lack of association between fetal/calf loss and normalised difference vegetation index suggests that carrion feeding, rather than calf predation, was the more likely cause. Nevertheless, during the fair to excellent prevailing seasons, there were direct observations of calf predation. It is likely that ground baiting, as applied, was ineffective in protecting calves, or that site effects, variable cow age and disease confounded our results.
英文关键词	livestock production predator control rangelands
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000454694500016
WOS关键词	CANIS-LUPUS-DINGO ; FEEDING-BEHAVIOR ; DOMESTIC DOGS ; CALF WASTAGE ; ABUNDANCE ; POPULATIONS ; IMPACTS ; ECOLOGY ; DIETARY ; DESERT
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214173
作者单位	1.S Kidman & Co Ltd, 183 Archer St, Adelaide, SA 5006, Australia; 2.Mt Bryan Vet Serv Pty Ltd, Burra, SA 5417, Australia; 3.South Australian Arid Lands Nat Resource Manageme, Port Augusta, SA 5700, Australia; 4.POB 283, Wilmington, SA 5485, Australia; 5.Ecol Horizons Pty Ltd, Kimba, SA 5641, Australia; 6.Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5000, Australia; 7.Cordillo Downs Stn, Via Port Augusta, Port Augusta, SA 5700, Australia; 8.NSW Dept Primary Ind, Vertebrate Pest Res Unit, Forest Rd, Orange, NSW 2800, Australia; 9.Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia; 10.Primary Ind & Reg SA, Biosecur SA, Waite Rd, Urrbrae, SA 5064, Australia; 11.5B Kingston Ave, Seacombe Gardens, SA 5047, Australia; 12.Desert Wildlife Serv, Alice Springs, NT 0870, Australia; 13.Univ Southern Queensland, Div Res & Innovat, Inst Agr & Environm, Toowoomba, Qld 4350, Australia
推荐引用方式 GB/T 7714	Campbell, Greg,Coffey, Andrew,Miller, Heather,et al. Dingo baiting did not reduce fetal/calf loss in beef cattle in northern South Australia[J],2019,59(2):319-330.
APA	Campbell, Greg.,Coffey, Andrew.,Miller, Heather.,Read, John L..,Brook, Anthony.,...&Allen, Benjamin L..(2019).Dingo baiting did not reduce fetal/calf loss in beef cattle in northern South Australia.ANIMAL PRODUCTION SCIENCE,59(2),319-330.
MLA	Campbell, Greg,et al."Dingo baiting did not reduce fetal/calf loss in beef cattle in northern South Australia".ANIMAL PRODUCTION SCIENCE 59.2(2019):319-330.