They found out that lambs fed on 38, 58, and 68% poultry
manure and rice hulls gave similar results compared with
those fed on all hay rations. The cost-effective features of
using poultry manure to feed wethers at high level between
50 and 70% in the form of cubes were observed by Bishop
et al. (1971) in South Africa. From their findings they discovered that feeding wethers with poultry litter had profit
which was two times saving compared to those of conventional feed. The setup of an experiment to investigate feeding of ewes with poultry litter at 25 and 50% showed no
substantial differences in any of the experimental parameters, but there was copper toxicity in feeding the ewes with
broiler litters. Sheep was found to be more sensitive to the
upsurge in the content of copper in their diet compared to
cattle and mono-gastric animals.
Intensive studies conducted by Goerring and Smith
(1977) showed that poultry manure and liquid squeezed by
screw-press from the manure of a cattle were really greater
than bases of protein in soybean and urea. The result
revealed that the original protein level was marginally different from the calculated value. The maximum lactic acid
level observed was from liquid squeezed by screw-press
from the cattle manure. There was also increased lamb
growth on daily bases, compared to the other diet without
urea (Nocek et al. 2006). The outcome designated a daily
weight gain with lambs fed with manure-based silage and
this shows an outstanding trend of lambs to utilize poultry
dungs proteins than from urea or soybean (Zinn et al. 1996).
Arvat et al. (1978) from their research of feeding poultry
waste to sheep concluded that feeding poultry litter to sheep
is of great economic importance, most importantly during
the winter period. Compared to when lesser quantities are
fortified with substitute for forage and feed. Combination of
poultry waste into the ration of lambs that are growing up to
70% and when to be used as fattener 50% is alright
(Nicholson et al. 1996). Considerable success depends on
the quality of the litter, the complement forage, and feed
constituents. When poultry waste is administered at 35% it
usually covers up for the total protein needed by the sheep
and it attributes significantly to the total energy needed.
A total of 70–74% of biological materials and 80% basic
proteins present in poultry litter are digestible. Appropriate
mixture of poultry waste, forage, and other roughages is
most significant in managing and utilizing poultry waste and
also reducing health hazard in sheep. The flaw in this
method of feeding is the copper toxicity. There is a need to
confirm the copper content inherent in the poultry waste
before administration to the sheep and also know the level of
tolerance of the animal to copper (Nicholson et al. 1996).
The beneficial importance of poultry waste to pigs varies
significantly. Reduced level (4–7%) of new poultry waste
deprived of bedding are very tolerable and leads to stimulated growth and appetite in pigs. Fresh manure directly
consumed has greater protein-bound protein level and
reduced level of ammonia containing protein that decreases
within hours. This validates the use of fresh litter than
already decomposed litter. Normal decomposition of poultry
litter does not take long time because of the presence of
proteolytic activity of the microbial population of the present
in the litter. Therefore, an incorporated method in
hen/pig/fish is being used by some farmers in Southeast
Asia. They are known to construct battery cages for layers
which is 1.5 m above pig pen, thereby saving the cost of pig
houses. Excreta from these layers drop directly into the pen,
where the pigs consume it directly within seconds of production by the hens. Mostly three to seven (Papadopoulos
1989; Wang and Parsons 1997; Shanmugasundaram et al.
2018; Tamreihao et al. 2019; Kang et al. 2018) birds serve
one pig and pig get 6.3–14.6% of layer direct manure in their
diet. The flaw in this system is that pigs that are younger
consume more than pigs that are older. Dry nutrient intake of
laying hen manure by pig is about 10% of their total feed.
This method is imperious to produce pig meal carefully so as
to avoid fluctuations in their calcium and phosphorus intake.
They observed that recently after long years of administration of this system to various farm scales, there was no
negative record on production or health of the pig rather than
good reports. Then they indicated that this system when
accompanied with fish signifies a total zero-pollution cycle
(Dikinya and Mufwanzala 2010; Fares et al. 2005).
During the United Nations Development Program/Food
Agriculture Organization (UNDP/FAO) research in Singapore (Muller 1974) litters of broiler hens were used in
feeding smaller sows in order to investigate the adequacy of
portions depending on various types of litter. Seven various
types of broiler dungs were combined at 35% in the food for
young pigs. Each portion was stabled with other feed constituents to attain a closely related nutritional value in all
meals. This was done by comparing their meals with the
commercial sow gestation portion of the same nutritional
value (Zhang and Lau 2009). In the absence of lucerne in
their meal, all other diet were readily putative and yielded
results closely related to or even better than that of the
commercial portion. The introduction of poultry litter into
meals lessen feed cost considerably, and there is likelihood
of substituting an important part of the pig rations by poultry
waste that is really financially encouraging and achievable in
fixed farming. A cohesive layer/pig/fish cycle seems to be of
supreme innovative and effective sound reprocessing method
which has zero-pollution release. This system is effectively
functional by farmers on both small and large scale. They
made inferences on re-feeding of poultry manure, to be
strictly feasible with very less difficulty. The single benefit
seems to be from calcium and phosphorus, and the reason
being that only little proportion of protein in poultry litter is
efficiently used by layers. Storage of undigested matter is a
342
C. O. Adetunji et al.
manure and rice hulls gave similar results compared with
those fed on all hay rations. The cost-effective features of
using poultry manure to feed wethers at high level between
50 and 70% in the form of cubes were observed by Bishop
et al. (1971) in South Africa. From their findings they discovered that feeding wethers with poultry litter had profit
which was two times saving compared to those of conventional feed. The setup of an experiment to investigate feeding of ewes with poultry litter at 25 and 50% showed no
substantial differences in any of the experimental parameters, but there was copper toxicity in feeding the ewes with
broiler litters. Sheep was found to be more sensitive to the
upsurge in the content of copper in their diet compared to
cattle and mono-gastric animals.
Intensive studies conducted by Goerring and Smith
(1977) showed that poultry manure and liquid squeezed by
screw-press from the manure of a cattle were really greater
than bases of protein in soybean and urea. The result
revealed that the original protein level was marginally different from the calculated value. The maximum lactic acid
level observed was from liquid squeezed by screw-press
from the cattle manure. There was also increased lamb
growth on daily bases, compared to the other diet without
urea (Nocek et al. 2006). The outcome designated a daily
weight gain with lambs fed with manure-based silage and
this shows an outstanding trend of lambs to utilize poultry
dungs proteins than from urea or soybean (Zinn et al. 1996).
Arvat et al. (1978) from their research of feeding poultry
waste to sheep concluded that feeding poultry litter to sheep
is of great economic importance, most importantly during
the winter period. Compared to when lesser quantities are
fortified with substitute for forage and feed. Combination of
poultry waste into the ration of lambs that are growing up to
70% and when to be used as fattener 50% is alright
(Nicholson et al. 1996). Considerable success depends on
the quality of the litter, the complement forage, and feed
constituents. When poultry waste is administered at 35% it
usually covers up for the total protein needed by the sheep
and it attributes significantly to the total energy needed.
A total of 70–74% of biological materials and 80% basic
proteins present in poultry litter are digestible. Appropriate
mixture of poultry waste, forage, and other roughages is
most significant in managing and utilizing poultry waste and
also reducing health hazard in sheep. The flaw in this
method of feeding is the copper toxicity. There is a need to
confirm the copper content inherent in the poultry waste
before administration to the sheep and also know the level of
tolerance of the animal to copper (Nicholson et al. 1996).
The beneficial importance of poultry waste to pigs varies
significantly. Reduced level (4–7%) of new poultry waste
deprived of bedding are very tolerable and leads to stimulated growth and appetite in pigs. Fresh manure directly
consumed has greater protein-bound protein level and
reduced level of ammonia containing protein that decreases
within hours. This validates the use of fresh litter than
already decomposed litter. Normal decomposition of poultry
litter does not take long time because of the presence of
proteolytic activity of the microbial population of the present
in the litter. Therefore, an incorporated method in
hen/pig/fish is being used by some farmers in Southeast
Asia. They are known to construct battery cages for layers
which is 1.5 m above pig pen, thereby saving the cost of pig
houses. Excreta from these layers drop directly into the pen,
where the pigs consume it directly within seconds of production by the hens. Mostly three to seven (Papadopoulos
1989; Wang and Parsons 1997; Shanmugasundaram et al.
2018; Tamreihao et al. 2019; Kang et al. 2018) birds serve
one pig and pig get 6.3–14.6% of layer direct manure in their
diet. The flaw in this system is that pigs that are younger
consume more than pigs that are older. Dry nutrient intake of
laying hen manure by pig is about 10% of their total feed.
This method is imperious to produce pig meal carefully so as
to avoid fluctuations in their calcium and phosphorus intake.
They observed that recently after long years of administration of this system to various farm scales, there was no
negative record on production or health of the pig rather than
good reports. Then they indicated that this system when
accompanied with fish signifies a total zero-pollution cycle
(Dikinya and Mufwanzala 2010; Fares et al. 2005).
During the United Nations Development Program/Food
Agriculture Organization (UNDP/FAO) research in Singapore (Muller 1974) litters of broiler hens were used in
feeding smaller sows in order to investigate the adequacy of
portions depending on various types of litter. Seven various
types of broiler dungs were combined at 35% in the food for
young pigs. Each portion was stabled with other feed constituents to attain a closely related nutritional value in all
meals. This was done by comparing their meals with the
commercial sow gestation portion of the same nutritional
value (Zhang and Lau 2009). In the absence of lucerne in
their meal, all other diet were readily putative and yielded
results closely related to or even better than that of the
commercial portion. The introduction of poultry litter into
meals lessen feed cost considerably, and there is likelihood
of substituting an important part of the pig rations by poultry
waste that is really financially encouraging and achievable in
fixed farming. A cohesive layer/pig/fish cycle seems to be of
supreme innovative and effective sound reprocessing method
which has zero-pollution release. This system is effectively
functional by farmers on both small and large scale. They
made inferences on re-feeding of poultry manure, to be
strictly feasible with very less difficulty. The single benefit
seems to be from calcium and phosphorus, and the reason
being that only little proportion of protein in poultry litter is
efficiently used by layers. Storage of undigested matter is a
342
C. O. Adetunji et al.