A growing global concern of antibiotic use in poultry diets due to its potential adverse effects on birds and human health, food safety and the environment has led to a complete ban or restricted use in some countries, and, at the same time, expanding options for the use of alternative feed additives. Multiple, rather than a single additive may replace antibiotic growth promoters (AGPs) in poultry. Blending of feeding additives and hygienic farm management, vaccination and biosecurity may help achieve good intestinal health, stabilise enteric ecosystems and result in sustainable and cost effective production performance of birds. Moreover, controlling unsolicited ingredients at the production level must have the support of different markets responsible for the supply of safe and quality poultry products for consumers. This requires the further increase and diversification of value added poultry products and the expansion of their markets through strategic planning and gradual limitation of live bird markets. More research is warranted in order to explore suitable, reliable and cost effective alternatives to AGPs for commercial use, and strategic poultry value chain development.
A mixed concentrate diet was replaced by graded levels of dried moringa foliage in growing Black Bengal goats and dry matter intake, digestibility and nutrient utilization and the growth performances were determined. Thirty growing male goats were divided into five groups with six animals in each group. The five dietary treatments consisted of varying proportions of moringa foliage (MF) and concentrate (C), namely, T 1 (100MF: 0C), T 2 (75MF:25C), T 3 (50MF:50C), T 4 (25MF: 75C) and T 5 (0MF:100C). The experiment was arranged in completely randomized design. All the five diets contain similar level of crude protein (average CP 18.3±0.09%) and metabolizable energy (average ME 10.96±0.19).The intake of dry matter and CP of goats on diet T 1 (100% moringa) differed significantly (p<0.01) from that of T5 (100% concentrate) diet. ADF intake was increased with the increasing level of moringa foliage, similarly the digestibility of ADF was increased significantly (p<0.01) with increasing level of moringa foliage. The digestibility of other nutrients did not vary significantly (p>0.05) among the diets. Nitrogen retention was significantly higher (P<0.01) in goats fed withT 1 , T 2 orT 3 diet than those fed with T 4 orT 5 diet. Highest average daily live weight gain was found in goats fed with T 2 diet while the lowest (P<0.05) was found in goats fed with T 5 diet. It was concluded that moringa foliage may be a replacer of conventionally mixed concentrate for feeding Bengal male goats.
Fibrous feeds mostly of crop residues, green grasses, and tree foliages and leaves support bulk diets of farm animals being raised mostly by smallholders. The roughage DM produced (51056 million kg) surpasses its demand (49200 million Kg) by 3.77%, but losses and otherwise uses result in production deficit of 44.5%. An average 56.2% deficit of roughage DM and 80.0% of concentrate DM results in a very poor plane of nutrition for farm animals. It supports an average diet containing 6.75 MJME/Kg DM and 1.63% DCP with the feed produced or 7.74 MJME/Kg DM and 2.32% DCP with the feed available, while a miserly calculation demands an average diet of at least 6.50 MJME/ Kg DM and 4.50% DCP.Brans and oilcakes sharing the bulk amount of concentrate feeds, except cereal maize being produced recently, often limit options for formulation of diets of higher metabolizability and quality protein including balancing of micronutrients essential for supporting nutritional planes for high yielding animals.Annual biomass demand and supply mismatch, harvest loss, bulk transfer problem, and otherwise uses of fibrous residues further limit feed supply to animals irrespective of their quality. Commercial poultry, on the other hand, is largely based on imported feeds except a part of corn. Different form of premixes, steroids, antibiotics and enzymes with or without knowing their quality and residual impacts on human health also used for poultry and bovine animals posing threats to food safety sometimes. The present poor plane of nutrition is not conducive to support an increased production of local or crossbred animals.Diversification and production of quality feeds and fodders, synchronization of feed production and availability to animals, strengthening feed milling capacity, conservation and improvement of new pasturage systems, mitigation of climate change impacts and domestic protection to feed safety and quality feed import are some of the options forward to increased supply of feeds and fodders help increased production and productivity of farm animals in the country.
The assessment of reproductive potentials of female gayal under semi-intensive management was conducted with 18 animals in Bandarban hilly area of Bangladesh. Age at first estrous (days), age at first conception (days), length of estrous cycle (days), number of service per conception (natural), gestation period (days), age at first calving (days), and calving interval (natural service) (days) of gayal were 598.2±168.44, 723±169.94, 21.86±2.93, 1.41, 296.05±3.87, 1014.42±260.32 and 465±80.48 respectively. Daily milk yield and lactation length of gayal were 304.98±30.46 ml/day and 116.67±8.08 days. Gayal male calves had higher birth weight (19.67 kg) than female calves (15.58 kg) in first lactation. Birth weight increases in second and third lactation than first lactation in both male and female calves. Highest conception rate observed in winter season and 70.60% successful conception occur when service was given within 21-30 h of estrous. Maximum number of female gayal use to come in estrous in winter and calved in monsoon and autumn. Cervicitis and irregular heat were the most reproductive problems followed by metritis, case of abortion, anestrous and repeat breeding. From this study it was observed that the reproductive performance of gayal is very close with the domestic cattle. It may use as beef cattle for the hilly regions of Bangladesh.
Bangladesh, a country of 147,570 Km estimated as 160 million in 2015. Livestock that includes cattle, buffalo, goat and sheep and poultry such as, chicken, ducks and pigeons are important to her food and agriculture. Their tot according to Agricultural Census (2008) is 25.67, 0.54, 16.3, 1.29, 97.8, 39.43 and 7.48 respectively, of the total population of the above animals and poultry, respectively; and the rest is kept by the Non-Farm households. The Non 82.6%, 79.9%, 82.2%, 80.2%, and 70.3%, respectively, and this shows that livestock and poultry; in addition to the production of milk, meat and eggs; support livelihood improvement of the land poor farmer in the country. However, the database of animal sourced foods (AS different regions, their consumptions, wet marketing and the extent of value additions, availability of feeds and fodder, and health problems in addition to regional planning for mitigation of climate pollution of animal origin are utmost concerns for doubling of livestock and poultry production and productivity by 2030.
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