The study investigates the effects of different maize diets, including quality protein maize (QPM) and provitamin A enriched maize, on the growth and performance of Vanaraja chickens. Results indicated that feeding QPM and QPM combined with provitamin A resulted in better body weight gain and improved feed efficiency while reducing abdominal fat and enhancing breast muscle development. Overall, these findings suggest the potential benefits of using improved maize hybrids in poultry diets.

1. Effects of QPM and provitamin-A rich
maize on growth and slaughter
variables in Vanaraja chicken
B. Prakash, S V Rama Rao, MVLN Raju, M Vignesh, K
Rajesh, Bhupender Kumar, Firoz Hossain and Sujay Rakshit

2. Background
 The success of poultry production depends, 1. Quality of the bird, 2.
Environment and 3. Balanced feed (70-75 percent cost of poultry
production).
 Poultry diet represents 65 percent of maize, serves as source of energy
and essential nutrients.
 However, ordinary maize is poor in essential amino acids viz., lysine and
tryptophan and provitamin-A, which play vital role in growth and
development of chicken.
 The crystalline amino acids are being supplemented in the dies to meet the
requirement.
 Breeding for improve the protein quality in maize has opened the avenues
to think for no addition or minimal supplementation of crystalline amino
acids in poultry diets.
 Therefore, present experiment was carried out to determine the effect of
feeding diets contained different maize hybrids to record the performance
in Vanaraja chickens.

3. Objective
To study the effect of QPM and
provitamin-A enriched maize on
performance in vanaraja
chicken

4. Conducted the experiment by feeding diets with
1. QPM
2. White maize
3. QPM + Provitamin-A
In Vanaraja chicks

5. Nutrient specific maize
White maize APQH9
Variety Provitamin A Lysine (%)
APQH-9 10.2 µg/g 0.365
White maize 1.13 µg/g 0.253
QPM 2.47 µg/g 0. 391
Maize 2.24 µg/g 0.241

6. Experimental Diets and design
Diet
M.E (Kcal/kg) 2800
Protein (%) 20.0
Lysine (%) 1.15
Methionine (%) 0.50
Calcium (%) 0.94
NPP (%) 0.4
175 birds × 5 diets × 7 replicates × 5 Chicks
Diet 1 (DPR Maize)
Diet 2 (Vivek Hyb 9)
Diet 3 (APQH9)
Diet 4 (QPM 9)
Diet 5 (White maize)
All the diets contained maize 61.76 kg/100 kg diet

7. Effect of diets on Feed intake (g/birds)
Experimental Diets
3 weeks
(FI, g)
6 weeks
(FI, g)
9 weeks
(FI, g)
Diet 1 DPR Maize 406.3 1257.4 2162.4
Diet 2 Vivek Hyb 9 419.1 1417.0 2333.3
Diet 3 APQH9 413.8 1269.3 2156.9
Diet 4 Vivek QPM 9 404.0 1334.0 2257.5
Diet 5 White Maize 396.5 1330.0 2246.2
N 7 7 7
SEM 5.78 20.7 26.1
P value 0.7 0.10 0.17
No effect on feed intake

8. Effect of diets on body weight gain (BWG)
Experimental Diets
3 weeks
(BWG, g)
6 weeks
(BWG, g)
9 weeks
(BWG, g)
Diet 1 DPR Maize 205.3
529.7 909.2
Diet 2 Vivek Hyb 9 213.0
586.9 956.1
Diet 3 APQH9 210.6
583.4 972.4
Diet 4 Vivek QPM 9 186.6
584.8 960.7
Diet 5 WM 191.4
563.6 962.0
N 7 7 7
SEM 4.98 9.93 11.7
P value 0.36 0.32 0.48
No sig. effect on BWG

9. Effect of diets on FCR (FI/BWG)
Experimental Diets
3 weeks
FCR
6 weeks
FCR
9 weeks
FCR
Diet 1 DPR Maize 2.023 2.181ab 2.361
Diet 2 Vivek Hyb 9 1.979 2.202a 2.404
Diet 3 APQH9 1.980 2.034c 2.339
Diet 4 Vivek QPM 9 2.182 2.131bc 2.357
Diet 5 WM 2.096 2.177ab 2.252
N 7 7 7
SEM 0.02 0.02 0.02
P value 0.08 0.01 0.08
Better FCR at 6 wks in APQH9 and QPM

10. BWG and FCR at 6 weeks of age
1 2 3 4 5
2.0
2.1
2.2
2.3
BWG
FCR
500
550
600
650
Diets
BWGFCR(FI/BWG)
1: DPR Maize, 2: Vivek Hyb9, 3: APQH9, 4: Vivek QPM 9, 5: White maize
Effect of feeding different source of maize on
performance in Vanaraja birds during 6 weeks of age

11. Slaughter variables (g)
RTC Breast Liver Ab. fat Gizzard Spleen Heart Bursa
Diet 1 DPR Maize 760.4 152c 24.6 6.10abc 24.8 1.90 5.60 1.54
Diet 2 Vivek Hyb 9 828.8 168abc 25.9 7.60ab 26.9 3.16 5.88 1.60
Diet 3 APQH9 844.6 195ab 27.8 3.80bc 29.4 2.80 6.30 1.38
Diet 4 QPM 9 825.2 200a 23.5 2.70c 24.8 2.56 6.16 1.08
Diet 5 WM 877.3 166bc 31.6 8.08a 32.3 2.86 12.00 1.92
SEM 23.0 4.9 1.5 0.69 1.6 0.20 1.18 0.16
Pavlue 0.6 0.01 0.5 0.03 0.5 0.38 0.41 0.63
IMPROVED BREAST WEIGHT AND REDUCED ABDOMINAL FAT

12. Breast muscle and abdominal fat content
1 2 3 4 5
1
3
5
7
9
Breast
Ab fat
135
150
165
180
195
210
225
1: DPR Maize, 2: Vivek Hyb9, 3: APQH9, 4: Vivek QPM 9, 5: White maize
Effect of feeding different maize on breast and
abdominal fat in Vanaraja birdsg

13. Conclusions
1. It is concluded that the birds fed QPM and
QPM + Provit A showed a better body weight
gain and improved feed efficiency.
2. QPM and QPM + Provit A feeding
considerably reduced the abdominal fat and
increased breast muscle, which is desired attribute
in chickens.