Enteric Methane Emission from Cattle Grazing Systems with Cover Crops and Legume-Grass Pasture.

This study aims to quantify enteric methane (CH) emission and dry matter intake (DMI) in beef steers under two rotational grazing systems: (i) a mixture of cover crops (vetch + ryegrass + forage radish) (CC) and (ii) alfalfa and fescue pasture (AFP). Eighteen Hereford steers were divided into two groups (nine steers per group), assigned to either the CC or AFP. Methane emissions were measured using the SF tracer technique.

A meta-analytic review of accuracy and bias in romantic partner perceptions.

People's perceptions of their romantic partners are somewhat accurate but also contain biases. In the current meta-analytic review, we sought to examine overall levels of accuracy and bias in romantic partner perceptions and moderators of accuracy and bias. We examined tracking accuracy (k = 157), projection (k = 157), indirect accuracy (k = 69), and mean-level bias (k = 153) in perceptions of a romantic partner across samples that estimated tracking accuracy and projection simultaneously.

Daily perceptions of romantic partner autonomy support and undermining of health behavior.

Objective: This study examined accuracy and bias in daily perceptions of a romantic partner's autonomy support and undermining of health behaviors and the associations between misperceptions and both partners' daily experiences.

Design: A sample of 106 cohabiting couples from the community completed daily reports ( = 2377) of their own and their partner's autonomy support and undermining, and their daily experiences.

Results: We found tracking accuracy and projection in perceptions of provider's autonomy support and undermining, and evidence of misperceptions: people over-perceived the provider's undermining and under-perceived the provider's autonomy support.

Beef Steers and Enteric Methane: Reducing Emissions by Managing Forage Diet Fiber Content.

Understanding the methane (CH) emissions that are produced by enteric fermentation is one of the main problems to be solved for livestock, due to their GHG effects. These emissions are affected by the quantity and quality of their diets, thus, it is key to accurately define the intake and fiber content (NDF) of these forage diets. On the other hand, different emission prediction equations have been developed; however, there are scarce and uncertain results regarding their evaluation of the emissions that have been observed in forage diets.

Development of a Mobile Open-Circuit Respiration Head Hood System for Measuring Gas Exchange in Camelids in the Andean Plateau.

Peru has the largest inventory of alpacas worldwide. Despite their importance as a source of net income for rural communities living at the Andean Plateau, data on energy requirements and methane (CH) emissions for alpacas are particularly lacking. In 2019, the International Panel on Climate Change (IPCC; 2006, and Refinement 2019) outlined methods for estimating CH emissions from enteric fermentation and no methane (CH) conversion factors were reported for camelids.

Improving the accuracy of beef cattle methane inventories in Latin America and Caribbean countries.

On-farm methane (CH) emissions need to be estimated accurately so that the mitigation effect of recommended practices can be accounted for. In the present study prediction equations for enteric CH have been developed in lieu of expensive animal measurement approaches. Our objectives were to: (1) compile a dataset from individual beef cattle data for the Latin America and Caribbean (LAC) region; (2) determine main predictors of CH emission variables; (3) develop and cross-validate prediction models according to dietary forage content (DFC); and (4) compare the predictive ability of these newly-developed models with extant equations reported in literature, including those currently used for CH inventories in LAC countries.

Mammalian organ regeneration in spiny mice.

Fibrosis-driven solid organ failure is a major world-wide health burden with few therapeutic options. Spiny mice (genus: Acomys) are terrestrial mammals that regenerate severe skin wounds without fibrotic scars to evade predators. Recent studies have shown that spiny mice also regenerate acute ischemic and traumatic injuries to kidney, heart, spinal cord, and skeletal muscle.

Congruence and goal sharing of health-related goals among newly dating individuals explaining goal importance and commitment.

Objectives: The study aimed to determine whether perceived goal sharing (i.e., perceiving a partner as having the same health-related goal) and/or perceived goal congruence (i.

Perceptions of partner social control: accuracy, bias, and daily experience.

Objective: We examined accuracy and bias in people's perceptions of their romantic partner's daily social control attempts of daily health behaviours and how misperceptions of partner daily social control are related to both partners' daily experiences.

Design: 106 cohabiting couples from the community reported on their own and their partner's daily social control attempts (i.e.

Dynamics of the ruminal microbial ecosystem, and inhibition of methanogenesis and propiogenesis in response to nitrate feeding to Holstein calves.

It is known that nitrate inhibits ruminal methanogenesis, mainly through competition with hydrogenotrophic methanogens for available hydrogen (H) and also through toxic effects on the methanogens. However, there is limited knowledge about its effects on the others members of ruminal microbiota and their metabolites. In this study, we investigated the effects of dietary nitrate inclusion on enteric methane (CH) emission, temporal changes in ruminal microbiota, and fermentation in Holstein calves.

Feed intake, methane yield, and efficiency of utilization of energy and nitrogen by sheep fed tropical grasses.

Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The aims of this study were to evaluate the effect of forage allowance levels on intake, digestibility, nitrogen (N) and energy balance, and methane (CH) emissions by lambs fed fresh pearl millet [Pennisetum americanum (L.

Seasonal Effect on Feed Intake and Methane Emissions of Cow-Calf Systems on Native Grassland with Variable Herbage Allowance.

The aim of this study was to measure methane emissions (CH) and herbage intake, and, on the basis of these results, obtain the methane yield (MY, methane yield as g CH/kg dry matter intake (DMI) and Ym, methane yield as a percentage of Gross Energy intake), from beef cows grazing on native grasslands. We used forty pregnant heifers, with two treatments of herbage allowance (HA) adjusted seasonally (8 and 5 kg dry matter (DM)/kg cattle live weight (LW), on average), during autumn, winter and spring. Methane emissions (207 g CH/d), organic matter intake (OMI, 7.

Changes in hematological, biochemical, and blood gases parameters in response to progressive inclusion of nitrate in the diet of Holstein calves.

Background And Aim: Nitrate (NO ) reduces enteric methane emissions and could be a source of non-protein nitrogen in ruminant feeds. Nonetheless, it has a potential toxic effect that could compromise animal health and production. The purpose of this study was to determine the effects of progressive inclusion of NO in the diet on the hematological, biochemical, and blood gases parameters, in turn, the effects on feed intake and live weight gain (LWG) in Holstein calves.

Consideration of Future Consequences Influences Involvement in Romantic Partners' Health.

This study examined the influence of people's short-term (e.g., convenience) and long-term (e.

Perceptions of a romantic partner's approach and avoidance motives: Accuracy, bias, and emotional cues.

We examined tracking accuracy and bias (mean-level and projection) in people's perceptions of their romantic partner's relationship approach and avoidance motives, similarity in partners' motives, and positive and negative emotions as potential cues used to make judgments about a partner's daily motives and motives during shared activities. Using data from 2 studies, 1 using daily diaries (N = 2,158 daily reports), the other using reports of shared activities (N = 1,228 activity reports), we found evidence of tracking accuracy and projection across samples; we also found evidence of mean-level bias such that people underperceived their partner's approach (daily) and avoidance motives (daily and in shared activities). Partners had similar daily approach and avoidance motives but were not similar in their motives during shared activities.

Atmospheric Methane Concentration Allows Estimating Natural Gas Leaks in Heating Systems in Tandil, Argentina.

Residential use of natural gas (NG) for heating and cooking purposes may contribute significantly to CH emissions to the atmosphere. To analyze whether the NG demand in the city of Tandil, Argentina, contributes to the increase in atmospheric CH concentration, we conducted systematic collections of time-integrated air samples for a year in six city sites with different population and built-up density. Some meteorological parameters and NG consumption were registered.

Association between residual feed intake and enteric methane emissions in Hereford steers.

The objective of this study was to quantify the emissions of enteric CH from growing Hereford steers raised under feedlot conditions based on contrasting levels of residual feed intake (RFI). A repeated measurements experiment was conducted over 20 d to determine CH production from two groups of nine Hereford steers, with contrasting RFI values (mean ± SD): low RFI (LRFI group; -0.78 ± 0.

Broadening your horizons: Self-expanding activities promote desire and satisfaction in established romantic relationships.

In the early stages of romantic relationships, sexual desire is often intense, but over time, as partners get to know each other, desire tends to decline. Low sexual desire has negative implications for relationship satisfaction and maintenance. Self-expansion theory suggests that engaging in novel activities with a long-term romantic partner can reignite feelings of passion from the early stages of a relationship.

The influence of copper levels on in vitro ruminal fermentation, bacterial growth and methane production.

Background: Copper (Cu) is an essential microelement to the health and proper functioning of metabolic processes in animals, but the particular function of Cu in fermentation processes and the formation of methane (CH ) in the rumen have been poorly analyzed. The innovative aspect of this study was to investigate the effects of high doses of Cu as copper sulfate on in vitro ruminal degradation, fermentation patterns, and CH production.

Results: There was a decrease (P < 0.

An examination of accuracy and bias in perceptions of a partner's motives for health behaviour regulation.

Objectives: This study assessed accuracy and bias in people's perceptions of their romantic partner's adoption of short-term (avoid conflict) and long-term (later health) motives for interpersonally regulating their health behaviours.

Design: A cross-sectional Web-based survey of 114 cohabiting romantic couples (N = 228 individuals) living in the United States.

Methods: Romantic partners separately completed measures of their short-term and long-term motives for self-regulation and partner regulation of health behaviours, as well as their perceptions of partner regulation of their own health behaviours.

Associations between social control, motivation, and exercise: How romantic partners influence exercise during young adulthood.

This study investigated whether positive and negative romantic partner social control attempts (persuasion and pressure, respectively) were related to approach-avoidance motives and exercise among young adults ( = 98), using daily reports. Daily persuasion was linked to higher daily approach motives. At the person level, persuasion was associated with higher approach and avoidance motives in addition to more frequent, longer exercise.

Investigating the work-family conflict and health link: Repetitive thought as a mechanism.

Research is needed to investigate mechanisms linking work-family conflict to poor health in working adults. We took a novel approach to build on extant studies by testing a potential mechanism in these associations - repetitive thought. Data came from a sample of 203 partnered working adults.

Temporal variation in methane emissions in a shallow lake at a southern mid latitude during high and low rainfall periods.

The global methane (CH) emission of lakes is estimated at between 6 and 16 % of total natural CH emissions. However, these values have a high uncertainty due to the wide variety of lakes with important differences in their morphological, biological, and physicochemical parameters and the relatively scarse data from southern mid-latitude lakes. For these reasons, we studied CH fluxes and CH dissolved in water in a typical shallow lake in the Pampean Wetland, Argentina, during four periods of consecutive years (April 2011-March 2015) preceded by different rainfall conditions.

The Effects of Lack of Joint Goal Planning on Divorce over 10 Years.

Given the negative consequences of divorce on health and well-being, it is important to try to identify its predictors. In the current study we used data from the National Survey of Midlife Development (N = 2801) to examine the longitudinal effects of lack of joint goal planning with a romantic relationship partner on divorce over a 10-year period. Multilevel regression analyses showed that lack of joint planning with the relationship partner was associated with a 19% increase in the odds of divorce, even when controlling for various demographic (i.

The burden of empathy: Partners' responses to divergence of interests in daily life.

Empathy has often been discussed as a beneficial process from which favorable individual and interpersonal experiences may be derived. The present work investigates whether empathy may sometimes be a burden rather than a benefit, under certain interpersonal circumstances. Specifically, we hypothesized that encountering situations of divergence of interests with a partner may cause discomfort, and that empathizing with one's partner would exacerbate this discomfort, resulting in higher levels of negative mood and stress that can affect relationship satisfaction.