Formulated Beta-Cyfluthrin Shows Wide Divergence in Toxicity among Bird Species

Table 4

Body weights (±0.05 g for canaries, ±0.1 g for shiny cowbirds and eared doves). Weights are given as predose weight—14-day postdose weight.

Test	Individual	Canaries	Shiny cowbirds	Eared doves
Limit test	1	20.65^a	53.0–47.4	118.0–128.0
	2	20.35^a	62.2–54.2	127.5 –126.0
	3	18.45^a	46.8–39.6	111.8^a
	4	19.90^a	49.6^a	135.7^a
	5	17.65^a	62.0^a	107.2–112.0
1st stage of the full test	1	17.40–21.00
	2	19.30^a
	3	21.15^a
	4	17.30^a
2nd stage of the full test	1	22.75–21.95	50.0–57.0	131.6–130.0
	2	17.85–19.85	46.0–56.5	105.9–115.0
	3	20.30–23.55	56.1–61.0	101.5–100.0
	4	21.40–24.60	50.1^a	134.5–122.0
	5	20.15–21.00	57.6–57.8	124.0–122.0
	6	20.55–21.10	48.0–52.8	100.0^a
	7	18.65–21.10	49.4^a	143.0–133.3
	8	18.15^a	42.6^a	101.0^a
	9	18.00^a	65.9^a	97.0–98.0
	10	19.40^a	50.3^a	116.0^a
3rd stage of full test	1	21.60–22.35	57.2–52.5	124.0–128.0
	2	17.90–23.35	57.0–52.0	107.0–110.0
	3	18.60–21.00	56.2–54.0	122.0-123.0
	4	18.60–22.10	45.0–44.0	88.0–116.0
	5	17.10–18.85	44.7–45.0	107.0-106.0
	6	17.85–18.60	61.5–55.0	108.0^a
	7	18.25–20.80	49.0^a	104.0^a
	8	18.10^a	49.0–46.0	100.0^a
	9	20.35–27.35	50.3^a	116.0^a
	10	22.10–23.10	52.4–50.0	109.0^a
3rd stage of the full test (2)	1	19.95–23.35
	2	22.95–24.60
	3	20.40–23.00
	4	23.40–23.60
	6	20.40^a
	8	16.15^a

aBird died; only predose weight given.