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Growth Performance, feed Conversion Ratio and Economics of Production of Native and Crossbred （Local x Holstein Friesian） Bulls for Fattening under Different Improved feeding

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Journal of Agricultural Science and Technology(A) 2015年第9期5卷 770-781页

作者： Mohammad Abu Bakkur Siddque Nathu Ram Sarker Mohammad Abdul Hamid Mohammad Nurul Amin Monira Sultana Department of General Animal Science and Nutrition Hajee Mohammad Danesh Science and Technology University Dinajpur5200 Bangladesh Bangladesh Livestock Research Institute Savar Dhaka 1341 Bangladesh Bangladesh Agricultural University Mymensingh 2202 Bangladesh

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

关键词： feed treatment growth performance FCR cost per gain.

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Utilisation of Non-Conventional Animal Waste as feeds by Multiple Livestock Species Farmers in Lake Victoria Crescent of Central Uganda

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Agricultural Sciences 2023年第11期14卷 1561-1572页

作者： Stephen Kabugo Samuel Okello Sarah A. Nalule David Kahwa Department of Livestock and Industrial Resources School of Veterinary Medicine and Animal Resources College of Veterinary Medicine Animal Resources and Biosecurity Makerere University Kampala Uganda Department of Agricultural Production Kyambogo University Kyambogo Uganda Department of Wild Life and Aquatic Resources School of Veterinary Medicine and Animal Resources College of Veterinary Medicine Animal Resources and Biosecurity Makerere University Kampala Uganda

A cross-sectional survey was conducted to establish the utilisation of non-conventional animal waste in multiple livestock species systems. Farmers (150) were selected from four out of ten districts of Central Uganda in Lake Victoria Crescent. A structured questionnaire was used and descriptive analysis showed that over 80% are smallholder farmers on 3.0) years. Household husbands (80%) significantly (P 1.0) as they cause poor livestock health due to pathogens, parasites and toxins which are associated (OD > 1.0) with poor growth, mortality and condemnation of livestock products. The remedy to unsafe non-conventional feeds is to apply effective solar-heating (75%), chemical and ensiling treatment methods. The study showed that there are no significant (P feeds instead it improves production and sustainability of multiple livestock species systems.

关键词： Multiple Livestock Species Non-Conventional feed Animal Waste Public Health feed treatment Central Uganda

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