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The 5% added flour rasogolla obtained best Vs 135 g/d) in dry season and 0.73 Kg/d (4. 84 vs
score on the basis of overall physical score 5. 57 Kg/d) and 28 g/d (22 Vs 50 g/d) in rainy
st
(92.83±1.50) followed by 1% flour season, respectively. Calving to 1 estrus,
(85.39±3.16), 10% flour (88.79±1.67) and conception and calving interval was reduced by 31,
15% flour (77.55±1.99). The differences 60 and 60 days in dry season and 19, 43 and 40
within the overall score were significant days in rainy season. UMB supplement resulted in
(P<0.01). From chemical parameters (except a better economic return due to improvement of
carbohydrate and total solids), it is evident production and reproductive efficiency, especially
that the addition of 1% or 5% flour indicates during the dry season when green fodder scarcity
better for the manufacture of rasogolla. The arises. UMB supplementation may be
differences within the chemical parameters recommended for improvement of production and
were significant (P<0.01). From the results of reproductive efficiency especially during dry
all parameters, it may be concluded that flour season in the tropics.
levels can change the quality of rasogolla. In
the preparation of rasogolla, flour may be 503 GONI, M.O. (Livestock Youth Training
added at 5% level (as per weight of chhana). Centre, Sylhet); RAHMAN, M.G.M.; ISLAM,
M.R. (Dept. of Animal Breding and Genetics,
502 CHOWDHURY, M.A.R.; KHAN, Bangladesh Agricultural University, Mymensingh);
M.A.S.; ISLAM, M.N. (Dept. of Dairy KHANDOKER, M.A.M.Y. & TALUKDER,
Science, Bangladesh Agricultural University, M.A.S. (Animal Breeding Section, Milk Vita,
Mymensingh); KABIR, A.K.M.A. & Sirajgonj). Reproductive and Productive
RAHMAN, A.B.M.M. (Dept. of Animal Performance of Different Dairy Breeds at
Science, Bangladesh Agricultural University, Baghabarighat Milk Producer's. Co-Operative
Mymensingh). Supplementation of Straw Union Limited. Bang. J. Anim. Sci., 2005, 34 (1 &
Based Diet with Urea Molasses Block to 2), 27-36.
Improve Milk Yield, Growth and
Reproductive Efficiency of Cross-Bred The aim of the study was to investigate the birth
Dairy Cows. Bang. J. Anim. Sci., 2005, 34 (1 weight of calves, age at puberty, age at first
& 2), 131-136. calving, service per conception, post-partum heat
Sixty upgraded (Holstein Friesian x indigenous period, milk yield, gestation period, lactation
cows) lactating cows of 31 smallholder farms were length and calving interval of the Sahiwal × Local
studied to evaluate the effectiveness of feeding (SL × L) and Holstein-Friesian × Sahiwal (HF ×
urea molasses block (UMB) during dry (November SL) cows. The average birth weight of calves, age
to April) and rainy season (May to October) in at puberty, age at first calving, service per
Bangladesh in terms of productive performances. conception, post-partum heat period of SL × L
Milk yield, body weight changes of cows and crossbred cows were 23.44 ± 1.61 kg, 958.73 ±
calves, reproductive performance of cows and 229.04 days, 1258.45±240.11 days, 141±0.63,
economic benefit from UMB supplement were 116.28 ± 38.02 days respectively and 25.81 ±1.52
studied for 6 months. Milk yield and body weight kg, 723.94±91.62 days, 1011.38±90.16 days,
gain of pregnant cows up to 6 months were 1.13±0.34, 96.88 ± 31.08 days respectively for HF
increased significantly (P<0. 05) in both seasons × SL crossbred cows. Average gestation period and
by 1. 54 Kg/d (4. 75 vs 6.29 Kg/d) and 107 g/d (18 calving interval were 284.64±6.68 days and
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