Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle
Objective This study aimed to determine the effects of replacing cassava chips with broken rice in a fermented total mixed ration diet on silage quality, feed intake, ruminal fermentation, growth performance, and carcass characteristics in the final phase of fattening beef cattle. Methods Eighteen C...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Asian-Australasian Association of Animal Production Societies
2021-08-01
|
Series: | Animal Bioscience |
Subjects: | |
Online Access: | http://www.animbiosci.org/upload/pdf/ajas-20-0288.pdf |
id |
doaj-f1054c32bdb246a7b06ec244e5156321 |
---|---|
record_format |
Article |
spelling |
doaj-f1054c32bdb246a7b06ec244e51563212021-07-05T06:14:28ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352021-08-013481331134110.5713/ajas.20.028824622Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattleSalisa Kotupan0Kritapon Sommart1 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, ThailandObjective This study aimed to determine the effects of replacing cassava chips with broken rice in a fermented total mixed ration diet on silage quality, feed intake, ruminal fermentation, growth performance, and carcass characteristics in the final phase of fattening beef cattle. Methods Eighteen Charolais-Thai native crossbred steers (average initial body weight: 609.4±46 kg; average age 31.6 mo) were subjected to three ad libitum dietary regimes and were maintained in individual pens for 90 d before slaughter. The experimental design was a randomized complete block design by initial age and body weight with six replicates. The dietary regimens used different proportions of broken rice (0%, 16%, and 32% [w/w] of dry matter [DM]) instead of cassava chips in a fermented total mixed ration. All dietary treatments were evaluated for in vitro gas production and tested in in vivo feeding trials. Results The in vitro experiments indicated that organic matter from broken rice was significantly more digestible than that from a cassava-based diet (p<0.05). Silage quality, nutrient intake, ruminal fermentation characteristics, carcass fat thickness, and marbling score substantially differed among treatments. The ruminal total volatile fatty acids, propionate concentration, dietary protein intake, and digestibility increased linearly (p<0.05) with broken rice, whereas acetate concentration and the acetate:propionate ratio decreased linearly (p<0.05) with broken rice (added up to 32 g/kg DM). Broken rice did not influence plasma metabolite levels or growth performance (p>0.05). However, the marbling score increased, and the carcass characteristics improved with broken rice. Conclusion Substitution of cassava chips with broken rice in beef cattle diets may improve fattened beef carcass quality because broken rice increases rumen fermentation, fatty acid biosynthesis, and metabolic energy supply.http://www.animbiosci.org/upload/pdf/ajas-20-0288.pdffeedinggrowth performancesmarblingriceruminant |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Salisa Kotupan Kritapon Sommart |
spellingShingle |
Salisa Kotupan Kritapon Sommart Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle Animal Bioscience feeding growth performances marbling rice ruminant |
author_facet |
Salisa Kotupan Kritapon Sommart |
author_sort |
Salisa Kotupan |
title |
Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
title_short |
Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
title_full |
Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
title_fullStr |
Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
title_full_unstemmed |
Broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
title_sort |
broken rice in a fermented total mixed ration improves carcass and marbling quality in fattened beef cattle |
publisher |
Asian-Australasian Association of Animal Production Societies |
series |
Animal Bioscience |
issn |
2765-0189 2765-0235 |
publishDate |
2021-08-01 |
description |
Objective This study aimed to determine the effects of replacing cassava chips with broken rice in a fermented total mixed ration diet on silage quality, feed intake, ruminal fermentation, growth performance, and carcass characteristics in the final phase of fattening beef cattle. Methods Eighteen Charolais-Thai native crossbred steers (average initial body weight: 609.4±46 kg; average age 31.6 mo) were subjected to three ad libitum dietary regimes and were maintained in individual pens for 90 d before slaughter. The experimental design was a randomized complete block design by initial age and body weight with six replicates. The dietary regimens used different proportions of broken rice (0%, 16%, and 32% [w/w] of dry matter [DM]) instead of cassava chips in a fermented total mixed ration. All dietary treatments were evaluated for in vitro gas production and tested in in vivo feeding trials. Results The in vitro experiments indicated that organic matter from broken rice was significantly more digestible than that from a cassava-based diet (p<0.05). Silage quality, nutrient intake, ruminal fermentation characteristics, carcass fat thickness, and marbling score substantially differed among treatments. The ruminal total volatile fatty acids, propionate concentration, dietary protein intake, and digestibility increased linearly (p<0.05) with broken rice, whereas acetate concentration and the acetate:propionate ratio decreased linearly (p<0.05) with broken rice (added up to 32 g/kg DM). Broken rice did not influence plasma metabolite levels or growth performance (p>0.05). However, the marbling score increased, and the carcass characteristics improved with broken rice. Conclusion Substitution of cassava chips with broken rice in beef cattle diets may improve fattened beef carcass quality because broken rice increases rumen fermentation, fatty acid biosynthesis, and metabolic energy supply. |
topic |
feeding growth performances marbling rice ruminant |
url |
http://www.animbiosci.org/upload/pdf/ajas-20-0288.pdf |
work_keys_str_mv |
AT salisakotupan brokenriceinafermentedtotalmixedrationimprovescarcassandmarblingqualityinfattenedbeefcattle AT kritaponsommart brokenriceinafermentedtotalmixedrationimprovescarcassandmarblingqualityinfattenedbeefcattle |
_version_ |
1721318926490533888 |