FIGURE 4. Random distribution of treatments
Use of Moringa oleifera in chickens / González-Eras et al. __________________________________________________________________________
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Feed conversion ratio (FCR)
This data is obtained from the division between the accumulated
feed consumed and the weight gain of the B, recorded wk. 100 data
(5T × 4EU × 5wk) were obtained.
Mortality
For this data, the number of dead B during the entire rearing period
was recorded.
Productive eciency factor (PEF)
This variable allows to evaluate the eciency of the batches, it is
obtained at the end of the handling of the B, the following formula is applied:
%
PEF
FCRage days
Survival rate finalweight kg
100
#
#
#
=
-- --
Kg of meat per m
2
This data is obtained by adding the nal weight (kg) of the B in a
m
2
of space.
Economic expenses
All the expenses on materials and equipment of the housing divided
by the number of EU was taken into account, and to this was added
the cost of the diet consumed by the B.
Experimental design
A completely randomized design (CRD) was applied, where 5T
were used, each with 4EU with 10 B, for a total of 200 B evaluated.
T1 or control contained a diet without Moringa meal, while T2, T3,
T4 and T5 included dehydrated Moringa leaf meal at 1, 2, 3 and 4%,
respectively (FIG. 4).
Statistical analysis
The data analysis was based on Blasco’s book [3]. For all the variables
of the experiment, an ANOVA test was used, prior assumptions of
normality and homogeneity, and to discriminate between the means,
the Bonferroni multiple comparison test was used with a condence
level of 95%. Everything was analyzed using the Statgraphics Centurión
XV.I statistical program ®.
RESULTS AND DISCUSSION
Live body weight of the broilers
In TABLE II, it is evident that there was no signicant difference
at week 1, 2, 4 and 5, while at wk 3 there was a difference, when
comparing T5 with the control, these results are partially similar
to those found by Fuentes et al. [7], who reported that by adding
10% Moringa leaf meal to the diet of Ross-308 B for 42 d affected
the average nal weight, being lower than the control treatment,
attributing this result to the increase of ber in the diet. Similar to
the results found in another species by Castillo et al. [4], who used
meal from M. oleifera leaves in the diets for fattening Japanese quails
(Coturnix japonica) showed that in the starter diet (d 1 to 14) there were
signicant differences, in such a way that by increasing the amount
of meal (7, 14 and 21%) a reduction in weight was observed, although
they also mentioned that at d 35 the inclusion level had no any effect.
Cumulative feed intake
Cumulative feed intake (TABLE III) was not different during wk 1 and
2, but in wk 3, 4 and 5 a signicant difference was obtained between
T5 and control. This differs from the ndings of Romero et al. [18],
who experimented with semi – heavy hens of the line Plymouth Rock
by including 3 levels (0, 3 and 6%) of M. oleifera in their diet, and found
no differences in feed consumption. Furthermore, these results also
differ from the research carried out by Gómez et al. [9], who included
Moringa meal at 4 and 8% in Cobb 500 male B, and whose analysis
began after 21 d, although they had signicant differences, they
showed a higher intake in the T that carried 4 and 8% compared to
the control T, concluding that ber (relatively high content) increased
feed consumption.
Accumulated water consumption
In TABLE IV, it is observed that there were no signicant differences
when comparing the water consumption among T. These results
were similar to the results reported by Antara et al. [1], who included
Moringa extract fermented by a probiotics (Saccharomyces spp.) at 2%
in the drinking water of laying hens up to 70 wk of age, and found no
signicant effect on water intake, at a dose of 2-4 mililiters (mL)/100
mL of drinking water.
Feed conversion ratio (FCR)
There were no signicant differences on FCR (TABLE V), results that
differ from those of Paul et al. [16], who included 1% of the aqueous
extract of M. oleifera in the drinking water of Cobb 500 B for 5 wk and
whose results showed a lower FCR when compared to the control
group. On the other hand, the present results were similar to what
was found in the study by Mesa et al. [14], who included 0.10, 15 and
20% of M. oleifera forage meal in the feed of White Leghorn L33 laying
hens from 19 to 26 wk of age, and did not show any difference in FCR.
Mortality
The only mortality recorded during the experiment was in T3, where
a B died on d 3, the necropsy showed omphalitis. On a study by Vázquez
et al, [20] who included M. oleifera forage meal at 0.5, 1 and 1.5% in
the diet of 28 male B (EB
34 hybrid
) for up to 42 d, when they evaluated
the results of immunological indicators (spleen, thymus and bursa
of Fabricius), and also hematocrit and hemoglobin, found out that by
including up to 1.5% Moringa meal does not affect mortality.