The object of the present review is to analyze the methodologies that are commonly used to estimate protein degradability in the rumen, focusing on their attributes and limitations to offer suggestions for improving their use. This information is essential for selecting food types when formulatin...
Velásquez Briceno, Alejandro
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Rivero, Jordana
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Marnet, Pierre-Guy
,
[Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein]
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Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
Nutritional recommendations of the past 35-40 years have promoted the reduction of fat intake, calories and particularly saturated fatty acids (SFA), emphasizing lower consumption of red meat and high fat dairy products, because of its association with cardiovascular diseases (CVD), being in turn...
Arias Inostroza, Rodrigo
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Pablo Keim, Juan
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Velásquez Briceno, Alejandro
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Vargas-Bello-Perez, Einar
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[Are fatty acids from beef and milk from cattle harmful for human health?]
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Are fatty acids from beef and milk from cattle harmful for human health?
In a first experiment, the effect of in vitro incubation with Aspergillus niger (An) on the chemical composition of different fibrous substrates was studied. In a second experiment, the effect of incubation time (0, 72 and 144 h) on in vitro digestion with An of dry matter (IVDMD), neutral deterg...
Velásquez Briceno, Alejandro
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Marnet, Pierre Guy
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Arias Inostroza, Rodrigo
,
[Improvement in nutritional quality of fibrous food via in vitro digestion by Aspergillus niger]
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Improvement in nutritional quality of fibrous food via in vitro digestion by Aspergillus niger
A mechanistic model (COWPOLL) was used to estimate enteric methane (CH4) emissions from beef production systems in Chile. The results expressed as a proportion of gross energy intake (GEI) were compared with enteric fermentation data reported in the last Chilean greenhouse gases inventory, which ...
Arias Inostroza, Rodrigo
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Catrileo, A.
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Larrain, R.
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Vera, R.
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Velásquez Briceno, Alejandro
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Toneatti Bastidas, Marcelo
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France, J.
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Dijkstra, J.
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Kebreab, E.
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[Estimating enteric methane emissions from Chilean beef fattening systems using a mechanistic model]
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Estimating enteric methane emissions from Chilean beef fattening systems using a mechanistic model
Enzymatic extracts were prepared from rumen fluid (RF) either directly after collection or after incubation in enriched media and their proteolytic activities were measured and compared The objective of RF in vitro cultivation was to augment enzymatic activity by using diverse incubation media co...
Velásquez Briceno, Alejandro
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Pichard, G.
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[Effects of rumen fluid pre-incubation on in vitro proteolytic activity of enzymatic extracts from rumen microorganisms]
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Effects of rumen fluid pre-incubation on in vitro proteolytic activity of enzymatic extracts from rumen microorganisms