Two experiments were carried out to investigate the effect of dietary supple-mentation of urea molasses multi-nutrient cake (UMMC) on productive and reproductive performances of rabbit. In Experiment-I, 80 rabbit does...Two experiments were carried out to investigate the effect of dietary supple-mentation of urea molasses multi-nutrient cake (UMMC) on productive and reproductive performances of rabbit. In Experiment-I, 80 rabbit does (age 24 weeks) were randomly assigned into four dietary treatment groups (T0, T1, T2 and T3) to investigate the effect of UMMC on the reproductive performances whereas in Experiment-II, 112 young rabbits (age 5 weeks) were also randomly assigned into another four dietary treatment groups to investigate the effect of UMMC on the productive performance. The rabbits of four dietary treatment groups (T0, T1, T2 and T3) in both experiments were fed 0%, 4%, 6% and 8% urea containing UMMC, respectively. The results revealed that the dietary supplementation of UMMC increased (P < 0.05) live weight of pregnant does, conception rate, litter size, and litter weight and individual kit weight at weaning. On the other hand, UMMC supplementation reduced (P < 0.05) the kit mortality, though it did not affect the gestation period, litter size, litter weight and individual kit weight at birth. Dietary UMMC supplementation also improved (P < 0.05) the productive performances of growing rabbits in terms of live weight gain, feed conversion ratio and performance index by almost same amount of feed intake. On the contrary, blood parameters (Hb, PCV and ESR) were not affected by the UMMC except for red blood cell and white blood cell counts, but were within their normal range indicating the safe use of UMMC. UMMC also increased (P < 0.05) the fecal bacterial population. Production cost of UMMC was around 0.19 USD less in each kg of feed than the commercial pellet. In both of the experiments rabbits fed 6% urea containing UMMC showed best result than control and other treatment groups as well.展开更多
An experiment was conducted to evaluate the growth performance and cost per gain of indigenous and crossbred （local x Holstein Friesian （L x HF）） bulls under four different improved feed treatments to determine th...An experiment was conducted to evaluate the growth performance and cost per gain of indigenous and crossbred （local x Holstein Friesian （L x HF）） bulls under four different improved feed treatments to determine the appropriate ration for economic organic beef production in Bangladesh. Twenty indigenous bulls （average body weight 208.08 ± 13.98 kg） and 20 crossbred （L x l-IF） bulls （average body weight 256.26 ± 26.85 kg） of 24 months age were divided into four equal groups and fed on four diets （T0, T1, T2 and T3） up to 120 d, where To referred to the conventional diet, and T1, T2 and T3 referred as improved organic diets. Required dry matter for individual animal was supplied by roughage and concentrate sources of the ration in the ratio of 2：1. Local grass and paddy straw were supplied to group T0 and T1, Napier grass and straw to group T2, and Napier grass （Pennisetum purpureum）, straw and Ipil-ipil leaf （Leuceana leucucephala） to group Ts as roughage; whereas, the concentrate was supplied as 1.5% of live weight. The results revealed that total dry matter intake （DMI）, total DMI as percent live weight （%LW）, feed conversion ratio （FCR） and average daily gain （ADG） varied significantly （P 〈 0.01） among different treatment groups. Breed also had significant （P 〈 0.01） effect on total DMI, FCR and ADG, but total DMI （%LW） was not affected by breed type. Feed cost expressed as per kg live weight gain （LWG） （BDT/kg LWG; 1USD = 78.95 BDT）, were also affected （P 〈 0.01） by feed treatments and breed type. Indigenous and crossbred bulls fed diet T3 had higher ADG （0.49 kg and 1.17 kg, respectively） and comparatively lower feed costs （156 BDT/kg LWG and 96.78 BDT/kg LWG, respectively）. But crossbred （L × HF） bulls showed the highest ADG （1.17 kg） and the lowest feed cost （96.78 BDT/kg LWG）. Therefore, considering the growth performance and cost per kg gain of the experimental animals, it may be concluded that the crossbred （Lx HF） bulls treated with T3 diet may be used for economic organic beef production in Bangladesh.展开更多
文摘Two experiments were carried out to investigate the effect of dietary supple-mentation of urea molasses multi-nutrient cake (UMMC) on productive and reproductive performances of rabbit. In Experiment-I, 80 rabbit does (age 24 weeks) were randomly assigned into four dietary treatment groups (T0, T1, T2 and T3) to investigate the effect of UMMC on the reproductive performances whereas in Experiment-II, 112 young rabbits (age 5 weeks) were also randomly assigned into another four dietary treatment groups to investigate the effect of UMMC on the productive performance. The rabbits of four dietary treatment groups (T0, T1, T2 and T3) in both experiments were fed 0%, 4%, 6% and 8% urea containing UMMC, respectively. The results revealed that the dietary supplementation of UMMC increased (P < 0.05) live weight of pregnant does, conception rate, litter size, and litter weight and individual kit weight at weaning. On the other hand, UMMC supplementation reduced (P < 0.05) the kit mortality, though it did not affect the gestation period, litter size, litter weight and individual kit weight at birth. Dietary UMMC supplementation also improved (P < 0.05) the productive performances of growing rabbits in terms of live weight gain, feed conversion ratio and performance index by almost same amount of feed intake. On the contrary, blood parameters (Hb, PCV and ESR) were not affected by the UMMC except for red blood cell and white blood cell counts, but were within their normal range indicating the safe use of UMMC. UMMC also increased (P < 0.05) the fecal bacterial population. Production cost of UMMC was around 0.19 USD less in each kg of feed than the commercial pellet. In both of the experiments rabbits fed 6% urea containing UMMC showed best result than control and other treatment groups as well.
文摘An experiment was conducted to evaluate the growth performance and cost per gain of indigenous and crossbred （local x Holstein Friesian （L x HF）） bulls under four different improved feed treatments to determine the appropriate ration for economic organic beef production in Bangladesh. Twenty indigenous bulls （average body weight 208.08 ± 13.98 kg） and 20 crossbred （L x l-IF） bulls （average body weight 256.26 ± 26.85 kg） of 24 months age were divided into four equal groups and fed on four diets （T0, T1, T2 and T3） up to 120 d, where To referred to the conventional diet, and T1, T2 and T3 referred as improved organic diets. Required dry matter for individual animal was supplied by roughage and concentrate sources of the ration in the ratio of 2：1. Local grass and paddy straw were supplied to group T0 and T1, Napier grass and straw to group T2, and Napier grass （Pennisetum purpureum）, straw and Ipil-ipil leaf （Leuceana leucucephala） to group Ts as roughage; whereas, the concentrate was supplied as 1.5% of live weight. The results revealed that total dry matter intake （DMI）, total DMI as percent live weight （%LW）, feed conversion ratio （FCR） and average daily gain （ADG） varied significantly （P 〈 0.01） among different treatment groups. Breed also had significant （P 〈 0.01） effect on total DMI, FCR and ADG, but total DMI （%LW） was not affected by breed type. Feed cost expressed as per kg live weight gain （LWG） （BDT/kg LWG; 1USD = 78.95 BDT）, were also affected （P 〈 0.01） by feed treatments and breed type. Indigenous and crossbred bulls fed diet T3 had higher ADG （0.49 kg and 1.17 kg, respectively） and comparatively lower feed costs （156 BDT/kg LWG and 96.78 BDT/kg LWG, respectively）. But crossbred （L × HF） bulls showed the highest ADG （1.17 kg） and the lowest feed cost （96.78 BDT/kg LWG）. Therefore, considering the growth performance and cost per kg gain of the experimental animals, it may be concluded that the crossbred （Lx HF） bulls treated with T3 diet may be used for economic organic beef production in Bangladesh.
