Henrique Mendonça Nunes Ribeiro Filho
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View article: Forage, carbon accumulation, and soil physical characteristics in a crop–livestock production system
Forage, carbon accumulation, and soil physical characteristics in a crop–livestock production system Open
Crop‐livestock systems may improve land use and food security; however, heavy grazing can impair the soil physical properties and reduce the forage accumulation of subsequent crops. The study was conducted to evaluate the impact of mechani…
View article: Milk Production and Enteric Methane Emissions in Dairy Cows Grazing Annual Ryegrass Alone or Intercropped with Forage Legumes
Milk Production and Enteric Methane Emissions in Dairy Cows Grazing Annual Ryegrass Alone or Intercropped with Forage Legumes Open
This study evaluated the effects of reduced nitrogen fertilization and the intercropping of annual ryegrass (Lolium multiflorum Lam.) with forage legumes—common vetch (Vicia sativa L.) and red clover (Trifolium pratense L.)—on milk product…
View article: Milk Production and Enteric Methane Emissions in Dairy Cows Grazing Annual Ryegrass Alone or Intercropped with Forage Legumes
Milk Production and Enteric Methane Emissions in Dairy Cows Grazing Annual Ryegrass Alone or Intercropped with Forage Legumes Open
This study evaluated the effects of reduced nitrogen fertilization and the intercropping annual ryegrass (Lolium multiflorum Lam.) with forage legumes - common vetch (Vicia sativa L.) and red clover (Trifolium pratense L.) – on milk produc…
View article: Comparative assessment of LiDAR and conventional methods in evaluating genetic parameters of eucalypt progeny trials
Comparative assessment of LiDAR and conventional methods in evaluating genetic parameters of eucalypt progeny trials Open
This study compared Light Detection and Ranging (LiDAR) and conventional methods in progeny trials of Eucalyptus cloeziana and E. saligna. Two populations, derived from open-pollinated progenies, were evaluated by using a randomized comple…
View article: Mycotoxin concentration in salt-treated wet brewers’ grains and effects of their substitution for soybean meal and corn silage
Mycotoxin concentration in salt-treated wet brewers’ grains and effects of their substitution for soybean meal and corn silage Open
This study investigated the occurrence of mycotoxins in wet brewers’ grains (WBG) treated with salt (sodium chloride) and the intake, nutrient digestibility, and nitrogen use efficiency in lamb diets. Two experiments were conducted: first,…
View article: Partial replacement of a total mixed ration with annual ryegrass herbage: effects on dairy cow dry matter intake and milk production
Partial replacement of a total mixed ration with annual ryegrass herbage: effects on dairy cow dry matter intake and milk production Open
Studies with dairy cows receiving mixed ration and grazing annual pastures, which have low tiller density, are scarce. This study examined the effect of partial replacement of a total mixed ration (TMR) with annual temperate pasture. Treat…
View article: Milk fatty acid composition of cows and ewes supplemented with black wattle tannin extract
Milk fatty acid composition of cows and ewes supplemented with black wattle tannin extract Open
This study evaluated the effects of Acacia mearnsii tannin extract on milk fatty acid profile of dairy ewes and cows. In experiment 1, twenty-four Lacaune ewes received one of the following dietary treatments: control (no tannin extract ad…
View article: Milk fatty acid composition of cows and ewes supplemented with black wattle tannin extract
Milk fatty acid composition of cows and ewes supplemented with black wattle tannin extract Open
This study evaluated the effects of Acacia mearnsii tannin extract on milk fatty acid profile of dairy ewes and cows. In experiment 1, twenty-four Lacaune ewes received one of the following dietary treatments: control (no tannin extract ad…
View article: Effects of corn silage supplementation strategy and grazing intensity on herbage intake, milk production, and behavior of dairy cows
Effects of corn silage supplementation strategy and grazing intensity on herbage intake, milk production, and behavior of dairy cows Open
Effects of corn silage supplementation on milk production of grazing dairy cows depend in part on the substitution rate between the 2 forages, which may be influenced by grazing management. The aim of this study was to compare 2 grazing ma…
View article: Prediction of enteric methane production and yield in dairy cattle using a Latin America and Caribbean database
Prediction of enteric methane production and yield in dairy cattle using a Latin America and Caribbean database Open
Successful mitigation efforts entail accurate estimation of on-farm emission and prediction models can be an alternative to current laborious and costly in vivo CH4 measurement techniques. This study aimed to: (1) collate a database of ind…
View article: Ammonia and Nitrous Oxide Emissions from Dairy Cows on Straw-Based Litter Systems
Ammonia and Nitrous Oxide Emissions from Dairy Cows on Straw-Based Litter Systems Open
Increasing concerns regarding environmental impacts of animal production require a better understanding of the factors that influence nitrogen (N) excretion by animals and the processes that influence N volatilization into ammonia (NH3) an…
View article: Relationships between energy balance during early lactation and cow performance, blood metabolites, and fertility: A meta-analysis of individual cow data
Relationships between energy balance during early lactation and cow performance, blood metabolites, and fertility: A meta-analysis of individual cow data Open
This study was designed to contribute to the understanding of the relationships between energy balance (EB) in early lactation [4 to 21 d in milk (DIM)] and fertility traits [interval to start of luteal activity (SLA), interval to first ob…
View article: Herbage intake by steers grazing in a natural grassland with predominance of Andropogon lateralis Nees managed under different canopy heights
Herbage intake by steers grazing in a natural grassland with predominance of Andropogon lateralis Nees managed under different canopy heights Open
The animal performance on pasture is directly correlated to canopy structure since this influences the herbage consumption. This study was evaluated the effects of four pre-grazing canopy heights (12, 20, 28 and 36 cm) of Andropogon latera…
View article: Progressive inclusion of pearl millet herbage as a supplement for dairy cows fed mixed rations: Effects on methane emissions, dry matter intake, and milk production
Progressive inclusion of pearl millet herbage as a supplement for dairy cows fed mixed rations: Effects on methane emissions, dry matter intake, and milk production Open
The inclusion of grazing in dairy feeding systems can improve animal welfare and reduce feed costs and labor for animal care and manure management. This work aimed to evaluate the effects of including pearl millet herbage (Pennisetum glauc…
View article: Potential to reduce greenhouse gas emissions through different dairy cattle systems in subtropical regions
Potential to reduce greenhouse gas emissions through different dairy cattle systems in subtropical regions Open
Carbon (C) footprint of dairy production, expressed in kg C dioxide (CO2) equivalents (CO2e) (kg energy-corrected milk (ECM))-1, encompasses emissions from feed production, diet management and total product output. The proportion of pastur…
View article: Forage Intake and Nitrogen Retention in Wethers Fed Ryegrass Haylage Supplemented with Maize Silage
Forage Intake and Nitrogen Retention in Wethers Fed Ryegrass Haylage Supplemented with Maize Silage Open
Many decision support tools have been developed to predict herbage intake with herbivore ruminants indoors (Faverdin 1992) or at grazing, both using short-term (Baumont et al. 2004) or daily scale input variables (Heard et al. 2004; Delaga…
View article: Corn supplementation on milk urea nitrogen content of dairy cows grazing on temperate annual pasture
Corn supplementation on milk urea nitrogen content of dairy cows grazing on temperate annual pasture Open
The excretion of urinary nitrogen (N), one of the most important environmental contaminants from livestock systems, is highly correlated with milk urea N content. The objective of this research was to evaluate the use of different types of…
View article: Corn supplementation on milk urea nitrogen content of dairy cows grazing on temperate annual pasture
Corn supplementation on milk urea nitrogen content of dairy cows grazing on temperate annual pasture Open
The excretion of urinary nitrogen (N), one of the most important environmental contaminants from livestock systems, is highly correlated with milk urea N content. The objective of this research was to evaluate the use of different types of…
View article: Short-Term Herbage Intake Rate in Temperate Pastures Grasses Grown in Pure or in Intercropping Stands
Short-Term Herbage Intake Rate in Temperate Pastures Grasses Grown in Pure or in Intercropping Stands Open
Oat and ryegrass pastures grown in intercropping systems are the most common forages used during the fall and winter in subtropical and in some temperate climate regions. Nevertheless, it must be taken into account that the way in which th…
View article: Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances
Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances Open
Corn silage supplementation for dairy cows grazing in temperate annual pastures has rarely been investigated. The aim of this study is to compare two supplementation levels (0 and 4kg dry matter [DM]/day of a 7:1 mixture of corn silage and…
View article: Red clover silage: an alternative for mitigating the impact of nitrogen excretion in ovine production systems
Red clover silage: an alternative for mitigating the impact of nitrogen excretion in ovine production systems Open
The objective was to quantify the flow of intestinal nutrients and nitrogen excretion and retention in sheep receiving isoproteic diets. Eight Texel x Lacaune wethers (average body weight = 25±2.5 kg) were fitted with duodenal cannula and …
View article: Titanium dioxide (TiO2) as a marker to estimate fecal output in sheep
Titanium dioxide (TiO2) as a marker to estimate fecal output in sheep Open
Titanium dioxide (TiO2) is an external marker used to estimate fecal output based on forage intake of grazing ruminants; however, its use as marker for grazing sheep still needs attention. In the present study the TiO2 role to estimate fec…
View article: Herbage intake by cattle in kikuyugrass pastures under intermittent stocking method
Herbage intake by cattle in kikuyugrass pastures under intermittent stocking method Open
Two complementary experiments were conducted to investigate the relationships between the canopy structure of Pennisetum clandestinum (kikuyugrass) pastures created by intermittent stocking strategies and daily herbage intake by cattle. Th…
View article: Titanium dioxide (TiO2) as a marker to estimate fecal output in sheep
Titanium dioxide (TiO2) as a marker to estimate fecal output in sheep Open
Titanium dioxide (TiO2) is an external marker used to estimate fecal output based on forage intake of grazing ruminants; however, its use as marker for grazing sheep still needs attention. In the present study the TiO2 role to estimate fec…
View article: Red clover silage: an alternative for mitigating the impact of nitrogen excretion in ovine production systems
Red clover silage: an alternative for mitigating the impact of nitrogen excretion in ovine production systems Open
The objective was to quantify the flow of intestinal nutrients and nitrogen excretion and retention in sheep receiving isoproteic diets. Eight Texel x Lacaune wethers (average body weight = 25±2.5 kg) were fitted with duodenal cannula and …
View article: Herbage intake by cattle in kikuyugrass pastures under intermittent stocking method
Herbage intake by cattle in kikuyugrass pastures under intermittent stocking method Open
Two complementary experiments were conducted to investigate the relationships between the canopy structure of Pennisetum clandestinum (kikuyugrass) pastures created by intermittent stocking strategies and daily herbage intake by cattle. Th…
View article: Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances
Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances Open
Corn silage supplementation for dairy cows grazing in temperate annual pastures has rarely been investigated. The aim of this study is to compare two supplementation levels (0 and 4kg dry matter [DM]/day of a 7:1 mixture of corn silage and…