Evidence of effective scrapie transmission via colostrum and milk in sheep

BMC Veterinary Research

Table 3 Details of VRQ/VRQ ewes that provided milk for PMCA

Milk donor	Infection status	Scrapie transmission to lambs	Lactation day	Number of positive tests of a total of four tests
07-1006	Scrapie	Yes	7	4
(Study 3)			13	4
			42	4
07-1337	Scrapie	Yes	8	4
(Study 3)			14	4
			28	4
			35	4
			43	4
07-1288	Scrapie	Yes	7	4
(Study 3)			13	4
			20	4
			27	4
			42	4
			48	4
07-1287	Scrapie	Yes	6	4
(Study 3)			19	4
			26	4
			41	3
			47	4
07-1292	Scrapie	Yes	6	2
(Study 3)			19	4
			26	4
			41	3
			47	4
139/6	Scrapie	No*	12	4
(Study 1)
M340	Scrapie-free	Not tested	7	0
			14	0
			21	0
			28	0
N290	Scrapie-free	Not tested	10	1
			17	0
			24	0
			31	0
N531	Scrapie-free	Not tested	8	0
			15	1
			22	1
			29	0
P201	Scrapie-free	Not tested	9	0
			16	0
			23	0
			30	0
P381	Scrapie-free	Not tested	10	0
			17	0
			24	0
			31	0

* Culled at 105 days of age.
Positive samples are in bold font.
All scrapie-free sheep were Cheviot ewes, sheep 139/6 was a Poll Dorset × Friesland, see Table 2 for breeds of the other scrapie-affected sheep.

ISSN: 1746-6148