|
|
| |
| Articles
by
M. Shahjalal |
Total Records (
10 ) for
M. Shahjalal |
|
 |
| |
|
| |
F. Kabir
,
M. Shahjalal
,
G. Miah
,
M. J. Uddin
and
M. Z. Rahman
|
| |
Supplemental effect of concentrate was studied on growth and reproductive performance in female goats and sheep under grazing condition. Six females each of goats and sheep aged about ten months and weighing on average, 12.6 and 11.7 kg respectively was used. The supplied concentrate supplement contained wheat bran, rice polish and soybean meal (50:40:10, 350 g/d). Animals of each species were blocked according to live weight and the blocked groups were assigned at random to two feeding regimes (with or without concentrate supplementation) in a 2×2 factorial experiment. Significantly higher (P<0.01) dry matter intake was observed in supplemented group than those of control group (grazing without concentrate) irrespective of animal species. Between sheep and goats significant (P<0.05 to P<0.01) difference was observed in DM intake and live weight gain. Kids birth weight was higher (0.71 vs. 0.55 kg) and gestation length was lower (142 vs. 145 d) in goats given the concentrate supplement than those of control goats. These results suggested that the effect of supplementing concentrate diet be benefited for the growth and reproductive performance of goats and sheep under grazing condition. |
|
| |
|
| |
F. Kabir
,
M. Shahjalal
,
S. A. Chowdhury
,
M. J. Uddin
,
M. Hasanuzzaman
and
G. Miah
|
| |
This experiment was conducted to estimate the yield and nutritive value of
common roadside grasses available in Bangladesh. A land was developed as an
experimental plot and made for growing roadside grasses and was partitioned into
four quarters each of 200 sq.m. Pasture was established as a grazing land. The
average herbage yield (DM and OM) recorded in the month of November was
significantly (P<0.05) higher than that of August, September or February. The
fresh yield (P<0.05) and CP yield of Phaseolus mungo were significantly higher
than that of other grass species. The OM content of Imperata cylindrica was
significantly (P<0.05) than other grasses. The DM content of Cynodon dactylon
and Imperata cylindrica, NDF content of Cynodon dactylon and CP content of
Phaseolus mungo were significantly (P<0.01) higher than other grass species. |
|
| |
|
| |
M. J. Uddin
,
M. Shahjalal
,
F. Kabir
,
M. H. Khan
and
S. A. Chowdhury
|
| |
The aim of this experiment was to investigate the beneficiary effect of feeding
urea-molasses treated straw on dairy buffaloes. Nine animals are divided into two
groups bearing 5 animals in group A and 4 animals in group B (control). The daily
milk yield of UMS fed group A (2.69 kg) was significantly (P<0.001) higher than
that of the control (1.63 kg) one. Lactation length was also higher in UMS group
although insignificant. Further more, calf live weight gain of group A was non
significantly better than B. Total feed cost were higher in group A for addition of
supplement than B. Whereas, return from milk and calf live weight gain in
supplemented group A was significantly better than control group B. UMS may be
the best, cheapest as well as economic supplemented diet for dairy buffaloes
during green roughage scarcity period. |
|
|
| |
|
| |
M.A. Rahman
,
M. Shahjalal
,
M. Al-Mamun
and
K.M. S. Islam
|
| |
The effect of different sources of nitrogen supplementation on growth and reproductive performance of female goats and sheep under grazing condition. In addition to grazing, goats were allocated at random to three approximately iso-nitrogenous and iso-energetic supplemental diets. Average daily dry matter intake and live weight gain did not differ significantly both in goats and sheep received various sources of dietary N supplementation. The digestibility of all proximate components and nutritive value of supplemental diets was similar in goats and sheep. The results of the present studies showed that supplemental diets containing either soybean meal or till oil cake increased the growth rate of female goats and sheep. Therefore, feeding of goats and sheep with supplemental diet may be suggested under grazing condition. |
|
| |
|
| |
Yeasmin Akter
,
M.A. Akbar
,
M. Shahjalal
and
T.U. Ahmed
|
| |
The effects of supplementation with urea molasses multi-nutrient blocks of dairy cows fed rice straw and green grasses on milk yield, composition, live weight change of cows and calves and intake were studied under village condition. The cows were offered 250 g UMMB per cow per day. The animal were divided into two groups and randomly assigned to two dietary treatments. The control group (A) received diet containing rice straw, green grasses, wheat bran, rice polish and mustard oil cake. However, the supplemented group (B) received UMMB in addition to normal diet, given to the control group. Supplementation of blocks to cows also receiving straw based diets increased milk production from 2.86 to 4.43 L/d (P<0.01) and live weight of calves from 20.29 to 25.57 kg (P<0.05). But did not significantly increased live weight, condition score, milk composition and intake of cows. This increase in milk yield is mainly explained by increased intakes of energy and nitrogen. UMMB was as recommended to be used as a strategic supplement in lactating dairy cows especially when fed on low quality roughages or crop residues. |
|
|
| |
|
| |
M. Al- Mamun
,
M. A. Akbar
,
M. Shahjalal
and
M. A. H. Pramanik
|
| |
The existing practice of storing rice straw, routes of straw losses and problems related to livestock rearing in rural areas were studied in four selected villages of Mymensingh district of Bangladesh. The base line information on storage system of rice straw and livestock rearing problems were collected through PRA technique using a pre-designed questionnaire. From the survey it was identified that majority of the farmers stored rice straw traditionally making stack on the ground in unroofed condition and that caused considerable damage and losses of straw resulting shortage in the availability of rice straw for animals. Farmers reported that straw is lost in three stages - during harvesting, processing and storage condition. Harvesting loss was accounted for about 8 and 10% for Boro and T. aus straw, respectively. In wet season 25 and 23% of Boro and T. aus straw respectively, was lost during processing. About 18-20% of straw was lost during storage, which was mainly due to earthen evaporated gas, rat, termites, anjona (a reptile pest), poultry birds and excessive rainfall. In case of storage of rice straw the single most common solution for many problems as recommended by the farmers was to improve storage system. It may be concluded from the above results that traditional storage method leads to significant loss of rice straw resulting in feed shortage and impaired livestock productivity. |
|
| |
|
| |
H. M. Salim
,
M. Shahjalal
,
A. M. M. Tareque
and
F. Kabir
|
| |
An experiment was conducted to study the effect of concentrate supplementation on growth and reproductive performance of female sheep and goats under grazing condition. Six females each of sheep and goats aged about 6 months and weighing on average 9.80 and 9.77 kg respectively were studied for 224 days. Goats and sheep were allocated to two feeding regimes in a 2x2 factorial experiment. Feeding of animals (sheep and goats) with concentrate supplement significantly (P<0.01) increased DM (477.7 vs. 253.0 g/d) intake compared with those of the control group. The higher intake of DM resulted in significantly (P<0.01) higher live weight gain in animals of supplemented group than those of control group. However, between sheep and goats significant difference was observed in live weight gain (P<0.01) and DM intake (P<0.05). The results showed that certain reproductive parameters such as age at puberty, gestation weight and kid birth weight may be improved by supplementary feeding of concentrate. Therefore, feeding of grazing goats and sheep with concentrate supplement may be suggested to optimize growth performance. |
|
| |
|
| |
M. E. Hossain
,
M. Shahjalal
,
M. J. Khan
and
A. A. Bhuiyan
|
| |
Six female sheep were used in a 90 day trial to study the effect of dietary energy supplementation to grazing on feed intake, growth and reproductive performance of female sheep. Animals were blocked according to live weight and blocked groups were assigned at random into two feeding regimes i.e. low and high energy (10.02 and 11.98 MJ ME/kg DM). Each sheep received 250 grams of supplemental diet in addition to grazing. Results showed that, feeding of sheep with increased levels of dietary energy supplementation did not have significant (P>0.05) differences for daily average dry matter and crude protein intake. However, daily average ME intake significantly (P<0.05) increased in a linear fashion and the mean values were 4.67 and 5.76 MJ/d for low and high energy supplemented diets respectively. The digestibility of dry matter (DM), organic matter (OM) and crude fibre (CF) significantly (P<0.05) increased as the level energy supplementation was increased. However, the digestibility of crude protein (CP), nitrogen free extract (NFE) and ether extract (EE) was similar (P>0.05) for all dietary energy regimes. Average daily live weight gain significantly (p<0.05) increased from 34.8 to 48.5 g/d as the level of supplement energy increased from 10.02 to 11.98 MJ ME/Kg DM. The birth weight of lambs was highest i.e. 0.71 kg fed high energy diet and lowest i.e. 0.50 kg fed low energy diet. These results indicate that, increasing levels of supplemental energy improve growth and reproductive performance of female sheep. Therefore, supplementation of higher level of dietary energy (11.98 MJ ME/kg DM) may be suggested for optimizing growth and reproductive performance of female sheep under grazing condition. |
|
| |
|
| |
M. E. Hossain
,
M. Shahjalal
,
M. J. Khan
and
M. S. Hasanat
|
| |
Twelve female goats were used in a 90 day trial to study the effects of dietary energy supplementation to grazing on feed intake, growth and reproductive performance of female goats. Animals were blocked according to live weight and blocked groups were assigned at random into three feeding regimes i.e. low, medium and high energy (10.02, 11.06 and 11.98 MJ ME/kg DM). Each goat received 250 grams of supplemental diet in addition to grazing. Results showed that, daily average dry matter and crude protein intake significantly (P<0.05) decreased from 406.1 to 362.4 g/d and 47.7 to 40.4 g/d when supplemental energy level increased from 10.02 to 11.98 MJ ME/kg DM. Energy supplementation had positive effect on energy intake. ME intake significantly (P<0.05) increased from 3.75 to 4.25 MJ/d as well as the digestibility of OM and CF significantly (P<0.05) increased from 62.25 to 73.68% and 43.80 to 53.21% respectively as the level of supplemental energy increased from 10.02 to 11.98 MJ ME/kg DM. However, the digestibility of DM, CP, NFE and EE was similar (P>0.05) irrespective of level of energy supplementation. Average daily live weight gain increased (P>0.05) in a linear fashion and the mean values were 37.7, 44.4 and 52.9 g/d for low, medium and high energy supplemented diets respectively. Birth weight of kids was highest i.e. 0.75 kg fed high energy diet and lowest i.e. 0.55 kg fed low energy diet. These results indicate that, increasing levels of supplemental energy improved live weight gain and reproductive performance of female goats. Therefore, supplementation of higher level of dietary energy (11.98 MJ ME/kg DM) may be suggested for optimizing growth and reproductive performance of female goats under grazing condition. |
|
| |
|
| |
F. Kabir
,
M.S. Sultana
,
M. Shahjalal
,
M.J. Khan
and
M.Z. Alam
|
| |
The experiment was conducted to determine the effect of protein supplementation on growth performance in female goats and sheep. Ten does and six ewes aged about 15 months and weighing on average, 13.9 and 14.4 kg respectively were studied in this experiment. Animals were allocated to two feeding regimes [low protein (LP), 168g and high protein (HP), 208g per kg DM] in a randomized block design according to live weight. HP diet did not significantly (p>0.05) increase live weight gain (33.0 vs. 25.2 g/d) in goats. In contrast, sheep received the HP diet significantly (p<0.05, p<0.01) improved DM intake (509.0 vs. 425.9 g/d) and live weight gain (36.6 vs. 10.7 g/d) compared to those given the LP diet. These results indicate that supplementary feeding of high protein diet (208g CP per kg DM) significantly increased growth performance of sheep under grazing condition. |
|
|
|
|
| |
|
