Effect of physically effective fiber content in dairy cows rations on chewing activity
Uticaj sadržaja fizički efektivnih vlakana u obroku za mlečne krave na aktivnost žvakanja
Abstract
The effects of physically effective fiber concentration in rations for lactating cows on chewing activity, physiological and production characteristics are reviewed in the paper. In numerous investigations negative effects of decreasing of forage particle size were found, first of all in corn silage, alfalfa haylage and hay, on total chewing activity of dairy cows, ruminal pH, ruminal acetate to propionate ratio, digestibility of diet, milk yield and composition. Aside from the minimal chemical concentration of fibers, it is necessary to meet the required content of physically effective fiber from forages, which can be achieved with adequate chopping size of feeds. Optimal rations considering physical effectiveness, supply the required total chewing activity, adequate salivation and ruminal fermentation processes, efficient utilization of the diet, adequate milk yield and composition, and health in production animals.
U radu je razmatran efekat koncentracije fizički efektivnih vlakana u obrocima za krave u laktaciji na aktivnost žvakanja, fiziološke i proizvodne karakteristike. U većem broju istraživanja utvrđen je negativan efekat veće usitnjenosti kabastih hraniva, pre svega silaže cele biljke kukuruza, senaže lucerke i sena lucerke, na ukupnu aktivnost žvakanja kod krava, na ruminalnu pH vrednost, odnos koncentracije acetata i propionata u ruminalnom sadržaju, svarljivost obroka, proizvodnju i hemijski sastav mleka. Pored minimalnog hemijskog učešća vlakana, neophodno je obezbediti potreban sadržaj fizički efektivnih vlakana iz kabastog dela obroka, što se pre svega postiže odgovarajućom usitnjenošću kabastih hraniva. Optimalan obrok, sa aspekta fizičke efektivnosti, obezbeđuje potrebnu ukupnu aktivnost žvakanja, lučenje pljuvačke, normalan tok ruminalne fermentacije, efikasno iskorišćavanje konzumirane hrane, adekvatnu količinu i sastav proizvedenog mleka, i zdravlje proizvodnih životinja.
Keywords:
lactation cows / nutrition / physically effective fiber / chewing activity / krave u laktaciji / ishrana / fizički efektivna vlakna / aktivnost žvakanjaSource:
Zbornik naučnih radova Instituta PKB Agroekonomik, 2011, 17, 3-4, 37-48Publisher:
- Institut PKB Agroekonomik, Padinska skela
Funding / projects:
- Optimization of technological procedures and zootehnical resources on farms with the goal to upgrade sustainability of milk production (RS-MESTD-Technological Development (TD or TR)-31086)
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Stojanović, Bojan AU - Grubić, Goran AU - Djordjević, Nenad AU - Božičković, Aleksa AU - Ivetić, Aleksandra PY - 2011 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2584 AB - The effects of physically effective fiber concentration in rations for lactating cows on chewing activity, physiological and production characteristics are reviewed in the paper. In numerous investigations negative effects of decreasing of forage particle size were found, first of all in corn silage, alfalfa haylage and hay, on total chewing activity of dairy cows, ruminal pH, ruminal acetate to propionate ratio, digestibility of diet, milk yield and composition. Aside from the minimal chemical concentration of fibers, it is necessary to meet the required content of physically effective fiber from forages, which can be achieved with adequate chopping size of feeds. Optimal rations considering physical effectiveness, supply the required total chewing activity, adequate salivation and ruminal fermentation processes, efficient utilization of the diet, adequate milk yield and composition, and health in production animals. AB - U radu je razmatran efekat koncentracije fizički efektivnih vlakana u obrocima za krave u laktaciji na aktivnost žvakanja, fiziološke i proizvodne karakteristike. U većem broju istraživanja utvrđen je negativan efekat veće usitnjenosti kabastih hraniva, pre svega silaže cele biljke kukuruza, senaže lucerke i sena lucerke, na ukupnu aktivnost žvakanja kod krava, na ruminalnu pH vrednost, odnos koncentracije acetata i propionata u ruminalnom sadržaju, svarljivost obroka, proizvodnju i hemijski sastav mleka. Pored minimalnog hemijskog učešća vlakana, neophodno je obezbediti potreban sadržaj fizički efektivnih vlakana iz kabastog dela obroka, što se pre svega postiže odgovarajućom usitnjenošću kabastih hraniva. Optimalan obrok, sa aspekta fizičke efektivnosti, obezbeđuje potrebnu ukupnu aktivnost žvakanja, lučenje pljuvačke, normalan tok ruminalne fermentacije, efikasno iskorišćavanje konzumirane hrane, adekvatnu količinu i sastav proizvedenog mleka, i zdravlje proizvodnih životinja. PB - Institut PKB Agroekonomik, Padinska skela T2 - Zbornik naučnih radova Instituta PKB Agroekonomik T1 - Effect of physically effective fiber content in dairy cows rations on chewing activity T1 - Uticaj sadržaja fizički efektivnih vlakana u obroku za mlečne krave na aktivnost žvakanja EP - 48 IS - 3-4 SP - 37 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_agrospace_2584 ER -
@article{ author = "Stojanović, Bojan and Grubić, Goran and Djordjević, Nenad and Božičković, Aleksa and Ivetić, Aleksandra", year = "2011", abstract = "The effects of physically effective fiber concentration in rations for lactating cows on chewing activity, physiological and production characteristics are reviewed in the paper. In numerous investigations negative effects of decreasing of forage particle size were found, first of all in corn silage, alfalfa haylage and hay, on total chewing activity of dairy cows, ruminal pH, ruminal acetate to propionate ratio, digestibility of diet, milk yield and composition. Aside from the minimal chemical concentration of fibers, it is necessary to meet the required content of physically effective fiber from forages, which can be achieved with adequate chopping size of feeds. Optimal rations considering physical effectiveness, supply the required total chewing activity, adequate salivation and ruminal fermentation processes, efficient utilization of the diet, adequate milk yield and composition, and health in production animals., U radu je razmatran efekat koncentracije fizički efektivnih vlakana u obrocima za krave u laktaciji na aktivnost žvakanja, fiziološke i proizvodne karakteristike. U većem broju istraživanja utvrđen je negativan efekat veće usitnjenosti kabastih hraniva, pre svega silaže cele biljke kukuruza, senaže lucerke i sena lucerke, na ukupnu aktivnost žvakanja kod krava, na ruminalnu pH vrednost, odnos koncentracije acetata i propionata u ruminalnom sadržaju, svarljivost obroka, proizvodnju i hemijski sastav mleka. Pored minimalnog hemijskog učešća vlakana, neophodno je obezbediti potreban sadržaj fizički efektivnih vlakana iz kabastog dela obroka, što se pre svega postiže odgovarajućom usitnjenošću kabastih hraniva. Optimalan obrok, sa aspekta fizičke efektivnosti, obezbeđuje potrebnu ukupnu aktivnost žvakanja, lučenje pljuvačke, normalan tok ruminalne fermentacije, efikasno iskorišćavanje konzumirane hrane, adekvatnu količinu i sastav proizvedenog mleka, i zdravlje proizvodnih životinja.", publisher = "Institut PKB Agroekonomik, Padinska skela", journal = "Zbornik naučnih radova Instituta PKB Agroekonomik", title = "Effect of physically effective fiber content in dairy cows rations on chewing activity, Uticaj sadržaja fizički efektivnih vlakana u obroku za mlečne krave na aktivnost žvakanja", pages = "48-37", number = "3-4", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_agrospace_2584" }
Stojanović, B., Grubić, G., Djordjević, N., Božičković, A.,& Ivetić, A.. (2011). Effect of physically effective fiber content in dairy cows rations on chewing activity. in Zbornik naučnih radova Instituta PKB Agroekonomik Institut PKB Agroekonomik, Padinska skela., 17(3-4), 37-48. https://hdl.handle.net/21.15107/rcub_agrospace_2584
Stojanović B, Grubić G, Djordjević N, Božičković A, Ivetić A. Effect of physically effective fiber content in dairy cows rations on chewing activity. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2011;17(3-4):37-48. https://hdl.handle.net/21.15107/rcub_agrospace_2584 .
Stojanović, Bojan, Grubić, Goran, Djordjević, Nenad, Božičković, Aleksa, Ivetić, Aleksandra, "Effect of physically effective fiber content in dairy cows rations on chewing activity" in Zbornik naučnih radova Instituta PKB Agroekonomik, 17, no. 3-4 (2011):37-48, https://hdl.handle.net/21.15107/rcub_agrospace_2584 .