Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw
Objective This study was conducted to assess the effects of replacing rice straw with different proportions of cassava pulp on growth performance, feed intake, digestibility, rumen microbial population, energy partitioning and efficiency of metabolizable energy utilization in beef cattle. Methods Ei...
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| Format: | Article |
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Asian-Australasian Association of Animal Production Societies
2018-09-01
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| Series: | Asian-Australasian Journal of Animal Sciences |
| Subjects: | |
| Online Access: | http://www.ajas.info/upload/pdf/ajas-31-9-1431.pdf |
| _version_ | 1818924878535852032 |
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| author | Kanokwan Kongphitee Kritapon Sommart Thamrongsak Phonbumrung Thidarat Gunha Tomoyuki Suzuki |
| author_facet | Kanokwan Kongphitee Kritapon Sommart Thamrongsak Phonbumrung Thidarat Gunha Tomoyuki Suzuki |
| author_sort | Kanokwan Kongphitee |
| collection | DOAJ |
| description | Objective This study was conducted to assess the effects of replacing rice straw with different proportions of cassava pulp on growth performance, feed intake, digestibility, rumen microbial population, energy partitioning and efficiency of metabolizable energy utilization in beef cattle. Methods Eighteen yearling Thai native beef cattle (Bos indicus) with an average initial body weight (BW) of 98.3±12.8 kg were allocated to one of three dietary treatments and fed ad libitum for 149 days in a randomized complete block design. Three dietary treatments using different proportions of cassava pulp (100, 300, and 500 g/kg dry matter basis) instead of rice straw as a base in a fermented total mixed ration were applied. Animals were placed in a metabolic pen equipped with a ventilated head box respiration system to determine total digestibility and energy balance. Results The average daily weight gain, digestible intake and apparent digestibility of dry matter, organic matter and non-fiber carbohydrate, total protozoa, energy intake, energy retention and energy efficiency increased linearly (p<0.05) with an increasing proportion of cassava pulp in the diet, whereas the three main types of fibrolytic bacteria and energy excretion in the urine (p<0.05) decreased. The metabolizable energy requirement for the maintenance of yearling Thai native cattle, determined by a linear regression analysis, was 399 kJ/kg BW0.75, with an efficiency of metabolizable energy utilization for growth of 0.86. Conclusion Our results demonstrated that increasing the proportion of cassava pulp up to 500 g/kg of dry matter as a base in a fermented total mixed ration is an effective strategy for improving productivity in zebu cattle. |
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| format | Article |
| id | doaj.art-5ac0213a62bd486ea78d4c0666d5c843 |
| institution | Directory Open Access Journal |
| issn | 1011-2367 1976-5517 |
| language | English |
| last_indexed | 2024-12-20T02:32:20Z |
| publishDate | 2018-09-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Asian-Australasian Journal of Animal Sciences |
| spelling | doaj.art-5ac0213a62bd486ea78d4c0666d5c8432022-12-21T19:56:32ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172018-09-013191431144110.5713/ajas.17.075923953Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice strawKanokwan Kongphitee0Kritapon Sommart1Thamrongsak Phonbumrung2Thidarat Gunha3Tomoyuki Suzuki4 Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Bureau of Animal Nutrition Development, Department of Livestock Development, Ratchathewi, Bangkok 10400, Thailand Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Animal Production and Grassland Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki 305-8686, JapanObjective This study was conducted to assess the effects of replacing rice straw with different proportions of cassava pulp on growth performance, feed intake, digestibility, rumen microbial population, energy partitioning and efficiency of metabolizable energy utilization in beef cattle. Methods Eighteen yearling Thai native beef cattle (Bos indicus) with an average initial body weight (BW) of 98.3±12.8 kg were allocated to one of three dietary treatments and fed ad libitum for 149 days in a randomized complete block design. Three dietary treatments using different proportions of cassava pulp (100, 300, and 500 g/kg dry matter basis) instead of rice straw as a base in a fermented total mixed ration were applied. Animals were placed in a metabolic pen equipped with a ventilated head box respiration system to determine total digestibility and energy balance. Results The average daily weight gain, digestible intake and apparent digestibility of dry matter, organic matter and non-fiber carbohydrate, total protozoa, energy intake, energy retention and energy efficiency increased linearly (p<0.05) with an increasing proportion of cassava pulp in the diet, whereas the three main types of fibrolytic bacteria and energy excretion in the urine (p<0.05) decreased. The metabolizable energy requirement for the maintenance of yearling Thai native cattle, determined by a linear regression analysis, was 399 kJ/kg BW0.75, with an efficiency of metabolizable energy utilization for growth of 0.86. Conclusion Our results demonstrated that increasing the proportion of cassava pulp up to 500 g/kg of dry matter as a base in a fermented total mixed ration is an effective strategy for improving productivity in zebu cattle.http://www.ajas.info/upload/pdf/ajas-31-9-1431.pdfBos indicusIntakeDigestibilityRumen MicrobesEnergy Requirement |
| spellingShingle | Kanokwan Kongphitee Kritapon Sommart Thamrongsak Phonbumrung Thidarat Gunha Tomoyuki Suzuki Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw Asian-Australasian Journal of Animal Sciences Bos indicus Intake Digestibility Rumen Microbes Energy Requirement |
| title | Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| title_full | Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| title_fullStr | Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| title_full_unstemmed | Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| title_short | Feed intake, digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| title_sort | feed intake digestibility and energy partitioning in beef cattle fed diets with cassava pulp instead of rice straw |
| topic | Bos indicus Intake Digestibility Rumen Microbes Energy Requirement |
| url | http://www.ajas.info/upload/pdf/ajas-31-9-1431.pdf |
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