Effect of inclusion of zinc-glycine chelate and zinc sulphate on live performance, immunity and lipid peroxidation in broilers

Figures & data

Table 1. Diet composition and analysis of broilers.

^Ingredients (%)	^Starter (1–14 days)	^Grower (15–22 days)	^Finisher (22–35 days)
^Yellow corn	^57.^5	^58.^0	^59.^0
^Soybean (46%)	^21.^4	^15.^4	^9.^0
^Canola meal	^6.^10	^6.^10	^5.^10
^Vit.Premix	^0.^50	^0.^50	^0.^50
^Vegetable oil	^1.^35	^1.^75	^1.^45
^Limestone	^0.^54	^0.^50	^0.^50
^sodium chloride	^0.^23	^0.^20	^0.^20
^Na2 ^Co3	^0.^11	^0.^16	^0.^12
^DL-Methionine	^0.^14	^0.^12	^0.^13
^Analysis (%)
^Metabolizable energy (kcal/kg)	^2990	^3000	^3120
^Crude protein (%)	^23.^6	^21.^2	^19.^18
^Fat (%)	^4.^71	^5.^45	^5.^83
^Fiber (%)	^3.^61	^3.^64	^3.^55
^Ca (%)	^1.^00	^0.^91	^0.^85
^P ^(%)	^0.^75	^0.^66	^0.^62
^Na, (%)	^0.^20	^0.^19	^0.^18
^Lys (%)	^1.^34	^1.^16	^1.^09

⁽ NRC 1994^).

Table 2. Mean ± SE weekly feed consumption (g) in response to two forms of zinc in broiler.

Groups	Week 2	Week 3	Week 4	Week 5
Control	311.11^d± 2.15	564.34^e± 1.23	715.11^d± 2.85	912.31^e± 2.45
T1	342.13^a± 1.66	641.31^a± 1.48	781.33^a± 2.78	991.64^a± 1.66
T2	336.73^b± 1.33	637.66^b± 1.88	775.11^b± 2.67	978.36^c± 1.33
T3	335.57^b± 1.88	633.01^c± 2.33	771.27^b± 2.46	982.65^b± 1.66
T4	331.23^c± 1.88	618.68^d± 2.58	763.37^c± 2.25	946.32^d± 1.76

Different values in a column with same superscripts do not differ significantly (P < 0.05).

T1 and T2: organic Zn at the rate of 50 and 60 mg/kg; T3 and T4: inorganic Zn at the rate of 50 and 60 mg/kg.

Table 3. Mean ± SE weekly weight gain (g) in response to two forms of zinc in broiler.

Groups	Week 2	Week 3	Week 4	Week 5
Control	226.33^d± 2.43	278.67^e± 1.18	351.00^e± 1.74	388.00^e± 1.16
T1	284.67^a± 1.84	368.33^a± 1.66	465.67^a± 1.21	498.33^a± 1.34
T2	274.33^b± 2.86	362.33^b± 1.88	451.33^b± 1.21	465.67^c± 1.35
T3	272.67^bc± 2.18	346.00^d± 1.15	434.00^c± 4.42	468.00^b± 1.56
T4	267.33^c± 2.41	352.33^c± 0.83	425.00^d± 1.53	447.50^d± 1.75

Different values in a column with same superscripts do not differ significantly (P < 0.05).

T1 and T2: organic Zn at the rate of 50 and 60 mg/kg; T3 and T4: inorganic Zn at the rate of 50 and 60 mg/kg.

Table 4. Mean ± SE weekly feed conversion ratio in response to two forms of zinc in broiler.

Groups	Week 2	Week 3	Week 4	Week 5
Control	1.38^a± 0.21	2.00^a± 0.18	2.33^a± 0.13	2.36^a± 0.13
T1	1.21^c± 0.13	1.75^c± 0.14	1.66^c± 0.16	1.97^d± 0.11
T2	1.24^bc± 0.13	1.75^c± 0.13	1.71^c± 0.14	2.11^c± 0.11
T3	1.25^b± 0.11	1.82^b± 0.11	1.75^b± 0.11	2.11^c± 0.11
T4	1.26^b± 0.11	1.77^c± 0.18	1.78^b± 0.11	2.12^c± 0.11

Different values in a column with same superscripts do not differ significantly (P < 0.05).

T1 and T2: organic Zn at the rate of 50 and 60 mg/kg; T3 and T4: inorganic Zn at the rate of 50 and 60 mg/kg.

Table 5. Mean ± SE dressing percentage, antibody titre against New Castle Disease virus and melanodialdehyde (MDA) in broiler chicks fed with two forms of zinc.

Group	Dressing percentage	Mean Antibody titre	MDA (nmole/mL)
Control	61.15^e± 1.45	4.92^d± 1.08	2.82^a± 0.13
T1	68.56^a± 1.06	6.87^a± 1.14	2.15^d± 0.12
T2	67.77^b± 1.15	6.52^b± 1.08	2.32^c± 0.11
T3	66.41^c± 1.31	6.11^c± 1.05	2.62^b± 0.09
T4	65.24^d± 1.34	5.92^c± 1.05	2.55^b± 0.08

Different values in a column with same superscripts do not differ significantly (P < 0.05).

T1: organic Zn at the rate of 50 mg/kg; T2: organic Zn at the rate of 60 mg/kg; T3: inorganic Zn at the rate of 50 mg/kg; T4: inorganic Zn at the rate of 60 mg/kg.

NRC. 1994. Nutrient requirements of poultry, 9th rev. ed. Washington, DC: Natl. Acad. Press.

 Google Scholar