TY  - BOOK
AU  - Vidhyadharan P 
AU  - Amritha Viswanath(Guide)
TI  - Effect of Sodium Sulphate Supplementation in Layer Diet
U1  - 636.5 
PY  - 1998///
CY  -  Mannuthy
PB  - Department of Poultry Science, College of Veterinary and Animal Science
N2  - An investigation was carried out to evaluate the effect 
of supplementation of sodium sulphate in White Leghorn layer 
diets devoid of animal protein sources. White Leghorn 'Ft 
strain pullets of 20 weeks of age were wing banded and 
randomly distributed to five different dietary treatment 
groups, each with eight replicates of four birds each. The 
dietary treatment consisted of control ration (T1) prepared 
using unsalted dried fish as animal protein source, all 
vegetable protein diet with the addition of 300 g 
DL-methionine (T2), all vegetable protein diet with the 
addition of anhydrous sodium sulphate at the levels of 200 g 
(T3), 300 g (T4) and 400 g (Ts) in every 100 kg of diet. All 
the rations were formulated as per BIS (1992) specification of 
nutrients for layer chicken. Soyabean cake, groundnut cake 
and gingelly oil cake were used as protein sources in 
vegetable protein diet. Body weight at 20 and 48 weeks of 
age, age at sexual maturity, egg production, feed intake, feed 
efficiency, egg weight, livability and cost-benefit analysis 
were the major criteria considered for the evaluation. The 
data were recorded for seven, 28 day periods. 
There was significant difference in body weight at 48 
weeks of age (P<O. 05). Body weight of birds fed with standard 
layer ration (T1) and birds fed with 0.4 per cent sodium 
sulphate were significantly (P<0.05) higher than those birds 
 
	
	
 
 

 
fed with 0.3 per cent sodium supplemented diet. 
But body weight of birds fed with standard layer ration (T1) 
was comparable with body weight of birds fed with vegetable 
protein diet having 0.4 per cent sodium sulphate (Ts). 
Similar trend was followed in egg weight also, with 
significantly higher egg weight in treatment group fed with 
0.4 per cent sodium sulphate (Ts). Egg weight of birds fed 
with standard layer ration (T1) was comparable with T, 
(P<O. 01). But parameters like age at sexual maturity, hen-day 
and hen-housed egg production and feed efficiency were not 
affected by the supplementation of Sodium Sulphate. Feed 
intake showed significant (P<O.Ol) difference between dietary 
treatments. The group fed with 0.3 per cent methionine (T2) 
had significantly lower feed intake in comparison with 0.2 per 
cent (T3) and 0.3 per cent sodium sulphate (T4) supplemented 
group. Feed intake of birds fed with control diet (T1) was 
statistically comparable with all treatment groups except 
those birds fed with vegetable protein diet with 0.4 per cent 
sodium sulphate (Ts). Mortality pattern showed no difference 
among the five dietary treatments tested. All vegetable 
protein ration prepared with the addition of either methionine 
or sodium sulphate had higher price when compared with 
standard layer ration. Based on this study it was surmised 
that sodium sulphate supplementation did not have any 
deleterious effect on production performance of White Leghorn 
layers. So methionine or sodium sulphate can be effectively 
utilized in formulation of all vegetable layer ration when 
scarcity of fish occurs. 


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