| dc.description | Bangladesh now has a large and rapidly expanding poultry sector. Expansion of
poultry industry in Bangladesh is being driven by rising incomes of the consumers
and a shift in industry structure towards integrated ownership and coordination of
the input, production, and marketing operations involved in poultry production
(vertical integration). According to the information available in Banglapedia
(National Encyclopedia of Bangladesh), it shows that about 6.5% of national GDP
_ is covered by the livestock sector and its annual rate of productivity is 9%. About
20% of the population of Bangladesh earns their livelihood through work
associated with raising cattle and poultry. According to the report, the requirement
of animal protein per head per day is 120 g whereas the availability is only 12.51
g (DLS, 2008). The poultry production in Bangladesh currently estimated to be
140 million chicks and 13 million ducks (FAO, 2003). On the other hand more
than 130 hatcheries are producing 3.4 millions of day-old-chick (DOC) per week.
Thirty thousand commercial broiler and layer farms supplying 0.26 million metric
tons of poultry meat and 5,210 millions table eggs per year (Government of the
People’s Republic of Bangladesh et al., 1999). | en_US |
| dc.description.abstract | Broiler production has increased rapidly in tropical and subtropical regions in the past
and sustained growth is forecast for the future. One of the greatest challenges to efficient
production in these regions is reduced performance from warm and hot weather
conditions. There are many ways to decrease these detrimental effects of heat on broiler
chickens. Aloe vera is one of the oldest known medicinal plants but it is now realized
that many of its active constituent may be addressed in different ways by different
formulations. Research since the 1986 review has largely upheld the therapeutic claims
made in the earlier papers having scientific proof that aloe vera contains constituents
such as antioxidants, enzyme, vitamins, mineral, mixtures those are beneficial in
alleviating some of the heat stress related to physiological responses and improving
thermo tolerance that accelerate growth performance, feed intake, FCR, water intake
offal weight of broiler in the stressful environment. It has a wonderful moisturizing agent
and penetrates. It was recently proven to stimulate the body’s immune system. There are
many bioactive compounds present in aloe but there is need of an appropriate and
standard method to extract these active components from plant material. Along with
conventional methods, numerous new methods have been established but till now no
single method is regarded as standard for extracting bioactive compounds from aloe.
This study was conducted to determine the efficacy of aloe vera as a growth promoter on
the performance of broilers in stressful condition. The experimental day old chicks (250)
were divided into 5 groups. Each group consisting of 50 chicks was designated as group
To, T;, Tz, T3 and Ty The experiment was aimed at determining the influence of aloe vera
gel on growth performance of broilers such related with body weight gain, feed
efficiency, feed intake, water intake and offal weight(breast muscle, abdominal fat,
dressing %). Providing 0 ml, 5ml, 10ml, 15ml and 20ml aloe vera gel was added in per
liter drinking water. Similarly, it had no significant (P>0.05) effect on liver, gizzard,
thigh muscle and heart weight. But body weight gain and feed efficiency were
significantly (P<0.05) better than control group. In case of body weight gain and feed
efficiency 15% inclusion level of aloe vera gel is more appreciated and nutrient quality is
satisfactory where other inclusion level earned poor score. So we can recommend with
15% level. | en_US |
