Effects of dietary chromium polynicotinate supplementation on performance, fat deposition and plasma lipids of broiler chickens

Figures & data

Table 1 Composition and calculated nutrient content of the grower and finisher basal diets of the experiment.

	Grower (10–28 days of age)	Finisher (29–42 days of age)
Chromium Polynicotinate, µg/kg	0, 250, 500, 750, 1000 or 1250
Corn, %	47.97	54.33
Soybean meal, %	41.46	35.34
Sunflower oil, %	6.12	5.86
Tallow, %	0.43	0.27
Calcium carbonate, %	1	1.01
Dicalcium phosphate, %	1.83	1.87
Salt, %	0.38	0.38
Vitamin and mineral supplement^*, %	0.5	0.5
DL-Methionine, %	0.33	0.3
HCl-Lysin, %	0.19	0.15
Metabolisable energy, kcal/kg	3150	3200
Crude protein, %	21	19
Calcium, %	0.9	0.9
Available phosphorous, %	0.45	0.45
Sodium, %	0.16	0.16
Methionine, %	0.54	0.49
Met+Cys, %	0.85	0.78
Lysin, %	1.2	1.05

* Provided per kilogram: vitamin A, 4,000,000 U; cholecalciferol 800,000 U; vitamin E, 14,000 U; vitamin K₃, 760 mg; vitamin B₂, 2800 mg; vitamin B₆, 1520 mg; vitamin B₁₂, 7.6 mg; nicotinic acid, 18,000 mg; folic acid, 560 mg; pantothenic acid, 4400 mg; choline chloride, 190,000 mg; biotin, 45.3 mg; zinc, 16,000 mg; manganese, 25,600 mg; iron, 12,800 mg; copper, 3200 mg; selenium, 64 mg; iodine, 320 mg.

Table 2. Effects of dietary chromium polynicotinate supplementation on performance traits of broiler chickens.

		10 to 28 days of age				29 to 42 days of age
Dietary chromium polynicotinate concentrations (µg/kg)	Feed intake (g/bird/day)	Body weight gain (g/bird/day)	Feed conversion ratio	Abdominal ford pad^*	Feed intake (g/bird/day)	Body weight gain(g/bird/day)	Feed conversion ratio	Abdominal fat pad^*
0	84.6^b	60.0^b	1.41	2.04	176.6	89.4	1.97^a	2.36
250	88.1^ab	60.8^ab	1.45	1.65	174.0	92.6	1.87^b	2.00
500	90.7^a	63.3^a	1.43	1.65	174.4	91.6	1.90^ab	2.12
750	89.0^ab	62.0^ab	1.44	1.50	176.7	93.9	1.88^b	2.46
1000	89.6^ab	62.2^ab	1.44	2.00	177.2	95.0	1.88^b	2.46
1250	87.1^ab	59.5^b	1.46	1.52	172.0	92.7	1.85^b	2.66
SEM	0.63	0.44	0.06	0.08	1.66	0.78	0.09	0.1

a-b Means in a column with no common superscripts differ significantly (P<0.05).

* Abdominal fat pad calculated as a percent of carcass weight.

Table 3 Effects of dietary chromium polynicotinate supplementation on plasma cholesterol and triglyceride concentrations of broiler chickens.

	10 to 28 days of age		29 to 42 days of age
Dietary chromium polynicotinate concentration (µg/kg)	Plasma cholesterol Concentration (mg/dL)	Plasma triglyceride concentration (mg/dL)	Plasma cholesterol concentration (mg/dL)	Plasma triglyceride concentration (mg/dL)
0	110.6^ab	25.3	100.0^a	20.3
250	127.9^a	25.9	86.5^ab	22.0
500	126.3^ab	24.1	76.4^b	23.0
750	109.5^ab	26.0	82.8^ab	27.8
1000	101.7^b	28.8	92.6^ab	23.6
1250	106.3^ab	26.3	93.4^ab	22.8
SEM	3.2	1.7	2.6	2.15

a–b Means in a column with no common superscripts differ significantly (P<0.05).