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alkaline phosphatase activity varied insignificantly Savar, Dhaka). Effect of Supplemental Copper on
(P>0.05). From this experiment, it can be The Nutrient Utilization and Copper Status of
concluded that the supplementation of Zn improves Indigenous Bull Calves. Bang. J. Anim. Sci., 2007,
only Zn retention and blood Zn status other than 36 (1 & 2), 50-56.
live weight gain, feed intake, nutrient digestibility,
TDN and, apparent true and absorption of Zn. The experiment was conducted to investigate the
effect of supplemental copper on the feed intake,
474 ISLAM, S.S. (Agrotechnology Discipline, nutrient utilization growth performance, Cu
Khulna University, Khulna); MONDAL, S.C. absorption, Cu balance and blood, Cu status in
(Bangladesh Fisheries Research Institute, Fresh indigenous growing bull calves. Four male
Water Substation, Jessore) & ERSHAD, S.M.E. indigenous growing cattle of about 14 months old
(Youth Training Center, Jessore). Effects of weighing 88.75±14.25 kg were used with four
Deworming on the Growth and Milk Yield of diets consisting of rice straw, dhal grass, wheat
Indigenous Cattle. South Asian J. Agric., 2006, broken, rice polish, til oil cake and common salt
1(2), 101-103. containing four levels of Cu sulfate (9.22,15.22,
34.22 and 59.22 mg Cu/kg diet for T 0, T 1, T 2 and
The study was carried out at two selected villages T 3 respectively) in a 4x4 Latin Square Design
of Jessore district, Bangladesh with a view to having four feeding trials of 21 days each with a 7
assess the effects of deworming on the growth and days adjustment periods prior to each trial. The
milk yield performances of indigenous cattle. Total results showed that Cu supplementation had no
140 cattle were selected randomly from 50 farmers significant effect (P>0.05) on feed intake, live
in two villages of Jessore District. Seventy cattle weight gain, feed and protein conversion
were treated with deworming agents and the rest efficiency, apparent digestibility of nutrients (DM,
half was not de-wormed. Initial and final body OM, CP, CF, EE and NFE), digestible nutrients
weight was taken to determine the growth rate. A (DCP, DCF, DEE and DNFE) and TDN. On the
milk yield record of 11 dewormed and 12 control other hand, Cu balance (g/d) and its retention
animals was taken regularly. The effects of (g/100 g) increased significantly (P<0.01). Results
deworming was found significant (P<0.05) on both also showed that serum Cu concentration increased
growth rate and milk yield. The growth rates (g/d) significantly (P<0.01) with the increasing level of
of untreated and de-wormed cattle were Cu supplementation. From this experiment, it can
109.79±16.60 and 172.95±21.11, respectively. be concluded that the supplementation of Cu
Milk yields (kg/day) were 2.02±0.18 and improves only Cu retention and blood Cu status
2.45±0.12 for untreated and de-wormed cows, other than live weight gain, feed intake, nutrient
respectively. Considering the above findings it can digestibility, TDN, and apparent and true
be concluded here that the routine anthelmintic absorption of Cu.
treatment of cattle is essential to get better growth
and milk production. 476 MUNIM, T.; HUSAIN, S.S.; HOQUE,
M.A. & KHANDOKER, M.A.M.Y. (Dept. of
475 MALLICK, N.C.; KHANDAKER, Z.H. Animal Breeding and Genetics, Bangladesh
(Dept. of Animal Nutrition, Bangladesh Agricultural University, Mymensingh). Genetic
Agricultural University, Mymensingh) & HASAN, and Non-Genetic Effects on Productive and
K. (Bangladesh Livestock Research Institute,
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