Productivity-enhancing Technologies Research Articles

72 Environmental impacts associated with the removal of productivity enhancing technologies from three different post-weaning feed management strategies in Saskatchewan: A case study

Abstract The purpose of this research was to examine the use of productivity enhancing technologies (PETs) and post-weaning management on the environmental impacts of beef steers in western Canada. The PETs considered in the current study included ionophores (i.e., monensin, 33 ppm) and hormone implants (i.e., Ralgro, 36 mg zeranol). The production management systems considered were direct finishing (Heavy), confined backgrounding prior to finishing (Medium), and confined and pasture-based backgrounding prior to finishing (Light). The objectives were to model and compare environmental outcomes [greenhouse gas emissions (GHG), ammonia (NH3) emissions, land requirements and water use] using a whole-farm perspective and better understand the environmental footprint of the Canadian beef industry. Compared with natural steers, PETs led to a 10 to 13% reduction in GHG emissions (CO2e kgּ boneless beef-1), a 10 to 32% decrease in NH3 emissions (kg NH3ּּ kg boneless beef-1), a 9 to 22% reduction in land use (haּ kg boneless beef-1) and 12 to 25% decrease in water (m3ּ kg boneless beef-1) use. Direct finishing compared with backgrounded, and 2-stage backgrounded steers reduced GHG by 32% and 39% kg CO2eּ kg boneless beef-1, NH3 emissions by 36% and 52% kg NH3ּ kg boneless beef-1, land requirements by 25% and 73% haּ kg boneless beef-1 and water use by 18% and 51% m3ּ kg boneless beef-1, respectively. Varying post-weaning strategies allows producers to value-add (additional weight through backgrounding) and maximize the use of available feed (grazing). The full environmental impacts of removal of PETs from Canadian beef production must consider a whole-systems approach including economic viability, ecosystem services, as well as consumer demand and social acceptance.

Causes and Consequences of Minimum Wage Variation in China

This paper examines the effects of minimum wage policies on employment and income inequality in China. It is focusing on the interplay with foreign direct investment (FDI) and regional economic disparities. Since 1978, China’s economic reforms have led to significant growth and rising wages. Yet exacerbated income inequality. The study finds that FDI raises wages. It is particularly for skilled labor, while regional variations in minimum wage standards reflect economic activity differences between coastal and inland provinces. Higher minimum wages have mixed employment effects. It is negatively impacting prosperous Eastern regions while benefiting Central and Western regions. Additionally, higher wages spur productivity improvements and innovation among firms. Policy recommendations include developing region-specific wage policies. It enhances protections for migrant workers, encouraging investment in productivity-enhancing technologies. It promotes balanced economic development and strengthens labor regulation enforcement. These measures aim to balance wage growth with employment stability. Hence, this analysis promotes equitable economic development across China.

Resource productivity and costs of aquaculture practices: Economic-sustainability perspectives from U.S. catfish farming

Practical approaches that estimate farm-level use and efficiencies of major resources would measure both environmental and economic sustainability of aquaculture production along with providing inferences on improving both sustainability components. This study used U.S. catfish farm data to evaluate the economic sustainability of nine commercial catfish production strategies in terms of the productivity and costs of use of major resources. Intensive production systems such as split ponds and intensively aerated ponds demonstrated greatest efficiency in the use of land, water, energy, labor, management, and capital resources. Feed use efficiency and feed conversion ratios on commercial farms showed less variation across production intensities. The productivity of resource use was greater and the costs per kg of fish lower on larger, than smaller farms for labor, management, and capital across all production strategies. Given that management, fixed capital, and salaried labor are fixed costs, the greater efficiencies measured likely reflect effects of economies of scale in resource use. Study results support recent findings that underlying economic sustainability was the key driver of progressive adoption of productivity-enhancing technologies in the U.S. catfish industry. The resource metrics used in this study have broader applications in aquaculture and allow for closer and more efficient monitoring of key farm resources and sustainability of resource use.

Modelling environmental impacts associated with the removal of productivity-enhancing technologies from Canadian feedlots: a case study

Greenhouse gas (GHG) and ammonia (NH3) emissions, land and water use associated with feedlot cattle ( n = 40 hd treatment−1 trial−1) treated with or without productivity-enhancing technologies were modelled for a multiyear study ( n = 4). Heifers (H) were assigned to the following treatments: (1) implanted (HTBA); (2) provided with melengestrol acetate (HMGA); (3) nonimplanted control, weight-adjusted (CON_Adj) to achieve the same final carcass weight (CW) as 1 (HCON_AdjTBA); or (4) CON_Adj to achieve the CW as 2 (HCON_AdjMGA). Steers (S) were assigned as follows: (1) implanted (STBA); (2) implanted and provided with ractopamine hydrochloride (SRAC; conducted in the last 2 years); (3) CON_Adj to achieve the same CW as 1 (SCON_AdjTBA); or (4) CON_Adj to achieve the same CW as 2 (SCON_AdjRAC). The GHG and NH3 emissions from HTBA, HMGA, STBA, and SRAC were 3.8%, 3.0%, 10.1%, and 8.5% lower and 4.3%, 2.9%, 7.4%, and 7.6% lower, respectively, than the respective control cattle. The land required to produce feed was also reduced by 6.6%, 4.8%, 9.9%, and 10.9%, while water use was reduced by 6.4%, 4.8%, 10.1%, and 11.1% for HTBA, HMGA, STBA, and SRAC, respectively. This modelling study clearly demonstrates that conventional beef production systems have a lower environmental footprint than nonconventional systems.

The Role of Agriculture in Women’s Economic Empowerment in Wau County, Western Bahr-El-Ghazal, South Sudan

The study examined the role of agriculture in women's economic empowerment in Wau County, Western Bahr - El - Ghazal state, South Sudan. The objectives of the study were to examine the influence of agricultural extension services on women's economic empowerment in Wau Country of Western Bahr-El-Ghazal, South Sudan; to assess the effect of climate-smart agriculture on women's economic empowerment in Wau County of Western Bahr-El-Ghazal, South Sudan; and to establish the effect of gender equity in agriculture on women economic empowerment in Wau County of Western Bahr-El-Ghazal, South Sudan. The study applied a cross-sectional survey research design, along with both quantitative and qualitative approaches. 200 participants were recruited for the study using both simple random and purposive sampling techniques and both self-administered questionnaires and interview guide instruments. Quantitative data were analyzed using descriptive statistical analysis with help of SPSS Version 21 and qualitative data were analyzed using both thematic analysis and content analysis. It is found that women farmers in Wau Country of Western Bahr-El-Ghazal receive different extension services, research-based agricultural information to help them in their agricultural activities, access productivity-enhancing technologies through extension services through government agricultural programs and other NGOs who work to empower women, women farmers have not been involved in co-head to get information on agriculture best practices through extension services that leave them behind regarding economic empowerment and women farmers receive information to operate new agricultural equipment to improve the agricultural productivity to their income.

Diffusion of ideas in networks with endogenous search

I study the diffusion of technology when the decision to search for productivity-enhancing technologies depends on the network of interactions between agents. Agents have the option to engage in costly learning from their first-degree connections. The more productive an agent's connections, the higher the gains from learning. Hence, the network affects the reservation productivity at which agents choose to learn and, therefore, affects aggregate productivity. I find that the denser the network, the higher total factor productivity and the lower inequality on average. This effect is due to less dispersed gains from learning across nodes when network density increases. Despite the increase in productivity, the share of agents that learn in equilibrium is not affected by network density.

Environmental performance of commercial beef production systems utilizing conventional productivity-enhancing technologies.

The objective of this study was to evaluate the effects of using conventional productivity-enhancing technologies (PETs) with or without other natural PETs on the growth performance, carcass traits, and environmental impacts of feedlot cattle. A total of 768 cross-bred yearling steers (499 ± 28.6 kg; n = 384) and heifers (390 ± 34.9 kg; n = 384) were offered a barley grain-based basal diet and divided into implanted or non-implanted groups. Steers were then allocated to diets that contained either: (i) no additive (control); natural feed additives including (ii) fibrolytic enzymes (Enz), (iii) essential oil (Oleo), (iv) direct-fed microbial (DFM), (v) DFM + Enz + Oleo combination; conventional feed additives including (vi) Conv (monensin, tylosin, and beta-adrenergic agonists [βAA]); or Conv with natural feed additives including (vii) Conv + DFM + Enz; (viii) Conv + DFM + Enz + Oleo. Heifers received one of the first three dietary treatments or the following: (iv) probiotic (Citr); (v) Oleo + Citr; (vi) Melengesterol acetate (MGA) + Oleo + βAA; (vii) Conv (monensin, tylosin, βAA, and MGA); or (viii) Conv + Oleo (ConvOleo). Data were used to estimate greenhouse gas (GHG) and ammonia (NH3) emissions, as well as land and water use. Implant and Conv-treated cattle exhibited improvements in growth and carcass traits as compared to the other treatments (P < 0.05). Improvements in the performance of Conv-cattle illustrated that replacing conventional feed additives with natural feed additives would increase both the land and water required to satisfy the feed demand of steers and heifers by 7.9% and 10.5%, respectively. Further, GHG emission intensity for steers and heifers increased by 5.8% and 6.7%, and NH3 emission intensity by 4.3% and 6.7%, respectively. Eliminating the use of implants in cattle increased both land and water use by 14.6% and 19.5%, GHG emission intensity by 10.5% and 15.8%, and NH3 emission intensity by 3.4% and 11.0% for heifers and steers, respectively. These results demonstrate that the use of conventional PETs increases animal performance while reducing the environmental impacts of beef production. Restricting use would increase the environmental footprint of beef produced for both domestic and international markets.

Sustainable Intensification Practices Reduce Food Deficit for the Best- and Worst-Off Households in Ethiopia and Mozambique

An adequate food supply is widely recognized as a necessary condition for social development as well as a basic human right. Food deficits are especially common among semi-subsistence farming households in eastern and southern Africa and farm productivity is widely regarded as the locus for enhancing household food outcomes. However, knowledge gaps surrounding benefits associated with climate smart, productivity-enhancing technologies require attention. This study evaluates benefits associated with sustainable intensification farm management practices (crop residue retention, minimum tillage, manure application and use of herbicides, pesticides, fertilizer, and improved seeds) for household calorie and protein supplies and demonstrates their scope across households with high-, moderate- and low- likelihoods of calorie and protein deficits. Household-level calorie and protein deficits were estimated from survey data on food production, acquisition and consumption for households in Ethiopia and Mozambique. Multinomial logistic models were used to identify drivers of household food deficit status and logistic model trees established “rules of thumb” to classify households by food deficit status as low, moderate or high likelihood. In Ethiopia, especially wet seasons were associated with a high likelihood of a food deficit while especially dry seasons were associated with a high likelihood of food deficit in Mozambique. The practices associated with sustainable intensification and related technologies substantially enhanced food outcomes in groups with a high- and a low-likelihood of food deficit, and associated benefits were high for the best-off households. Benefits associated with sustainable intensification technologies were not observed for households with a moderate likelihood of a food deficit and some technologies even increased risk. The sustainable intensification practices assessed here were associated with improved food outcomes yet benefits were limited in scope for households of intermediate status. Thus, there is a need to expand the technical options available to reduce food deficit.

Effective biotechnologies for revolutionalizing the livestock industry in Nigeria after COVID-19 pandemic

COVID-19 pandemic has caused severe health and hunger challenges both in developed and developing economies of the world thereby posing a serious threat to the economies and food security issues particularly of vulnerable regions of the world. Currently in Nigeria, there is a great increase in the market prices of crops and livestock products occasioned by the prevailing clashes between crop farmer and livestock herders. There is thus a huge gap in the demand and supply of available essential agricultural products leading to the high inflation rate being witnessed in the country today. With the current population of over 200 million which is expected to double by 2050, the task of feeding these Nigerians is daunting and very challenging. To overcome these challenges, the livestock industry in Nigeria needs to be transformed accordingly. FAO report of 2019 had advised African livestock producers to work to expand the scope of their operations and to invest in productivity-enhancing technologies in order to meet the growing demands for livestock products. The adoption of biotechnological innovations already available in animal reproduction, nutrition, health and genetics, is a clear pathway to enhance livestock production in Nigeria. The Nigerian Government is expected to play a leading role by providing enabling environment that will make for easy and seamless adoption of these technologies. Nigerian livestock farmers on their part should be ready and willing to embrace these technologies to enhance the productive capacity of their stock as well as improving their own welfare and economic wellbeing.&#x0D; Key words: COVID-19 pandemic, biotechnology, livestock industry, development, Nigeria

147 Use of Productivity Enhancing Technologies in Beef Steers Reduces Greenhouse Gas Emission Intensity

Abstract In the last decade, the cattle industry has witnessed increased demand from domestic and international markets for hormone and antibiotic free beef. However, the environmental consequences of switching from conventional production to “natural” beef have not been extensively examined. This study explored greenhouse gas (GHG) emissions estimated using a whole-farm model, Holos (www.agr.gc.ca/holos-ghg) with model inputs from a 2-year replicated study in which calves were managed from weaning to finishing with 6 treatments based on body weight and feeding strategy. Treatments included Heavy (H), which were directly finished, Medium (M), which were backgrounded prior to finishing, and Light (L), which were backgrounded and then grazed during the summer before being placed on a finishing diet. Each treatment was subdivided into two management practices: Conventional (CON) in which productivity enhancing technologies (PETs) were used (ionophores, steroid implants and beta-adrenergic agonists) and Natural (NAT) in which PETs were removed. Emission intensity (kg CO2e kg-1 boneless beef) of HNAT was 17.3 to 20.1% higher than HCON, MNAT was 20.3 to 20.5% higher than MCON and LNAT were 11.5–12.6% higher than LCON treatment. Conventional treatments, using PET’s, reduced GHG emissions, however grazing should be considered for its potential to store and promote carbon sequestration in perennial grasslands.

Productivity-Enhancing Technologies. Can Consumer Choices Affect the Environmental Footprint of Beef?

Use of productivity-enhancing technologies (PET: growth hormones, ionophores, and beta-adrenergic agonists) to improve productivity has recently garnered public attention regarding environmentally sustainability, animal welfare, and human health. These consumer perceptions and increased demand for PET-free beef offer opportunities for the beef industry to target niche premium markets, domestically and internationally. However, there is a need to critically examine the trade-offs and benefits of beef raised with and without the use of PETs. This review contains a summary of the current literature regarding PET products available. The implications of their use on resource utilization, food safety and security, as well as animal health and welfare are discussed. Furthermore, we identified gaps in knowledge and future research questions related to the sustainability of these technologies in beef production systems. This work highlights the tradeoffs between environmental sustainability of beef and supplying the dietary needs of a growing population.

Income and greenhouse gas (GHG) emission trade-offs on smallholder farms at two sites in northern Nigeria

This study analyses the trade-offs between welfare (measured by income) and greenhouse gas (GHG) emissions using a farm-level optimisation model that incorporates the predominant cereal (sorghum), legumes (groundnut, soybeans), livestock (cattle, goats and sheep) and trees (locust bean, camel’s foot) representative of production systems at two contrasting sites in northern Nigeria. The optimisation model maximises the value of total farm production, subject to constraints on GHG reductions of 10%, 25% and the maximum reductions that allow households to meet minimum consumption requirements. Substantive reductions in livestock and legume production would be required to achieve the maximum possible reductions from current emissions and would reduce household income by 22% and 44%, respectively. Under current production practices, reductions in GHG emissions reduce household income, which suggests the need for further research on productivity-enhancing technologies that could both enhance income and reduce GHG emissions in these production contexts.

Rural non-farm income diversification: implications on smallholder farmers' welfare and agricultural technology adoption in Ghana

This study explored the potential impact of rural non-farm income diversification on households' welfare and adoption of Zai-technology (a proxy for agricultural technology adoption) using primary data collected from agricultural households in the Upper East region of Ghana. We used Propensity Score Matching (PSM) and Inverse-Probability-weighted Regression Adjustment (IPWRA) techniques to estimate welfare and Zai-technology impacts of non-farm income diversification. After controlling for differences in covariates, the results show that non-farm income diversification increases the likelihood of Zai-technology adoption and contributes to significant household welfare gains. We therefore suggest that the activities of agricultural extension services and farmer-based organizations (FBOs) be enhanced as they facilitate the diversification of non-farm incomes, thereby increasing investment in productivity-enhancing technologies (Zai) and household welfare.

The importance of frontier firms in total factor productivity in New Zealand, 2001–2016

Using firm-level panel data and estimating production functions for 37 industries, covering the 2001–16 period, this paper finds little evidence of major changes in frontier TFP over 2001–16, and limited evidence of catching-up; that is, it seems very likely that New Zealand firms at the national frontier are not keeping pace with global frontier firms. The most important conclusion from this study is that while there is some evidence of a failure of productivity-enhancing technologies to diffuse from firms operating at the national productivity frontier, the major problem is failure of productivity-enhancing technologies to diffuse from firms operating at the global productivity frontier. New Zealand’s major problem is that frontier firms are underperforming because of their characteristics (e.g. small and lacking international connections) while productivity is overall adversely affected by a lack of competition, which generally creates barriers to exiting and insufficient reallocation of market shares from lower- to higher-productivity firms.

Output Growth of Uganda’s Agriculture Sector: Does Public Expenditure on Education Matter?

We examine the multiple dimensions of the effect of public investment in education on agriculture sector output in a multivariate econometric framework. The study is underpinned by the growing interest in empirical investigations on the effects of public education expenditure on economic growth in developing countries to inform the education sector policy environment. The research employed a longitudinal study approach to examine the extent of public investment in education and effects on agriculture sector output in Uganda. The study relied on data from national statistics for the period 1982- 2017. Overall, public expenditure on education has a net positive effect on agriculture sector output. The impact of education on agriculture output has been proven to promote agriculture output through supporting farmer adoption of new productivity-enhancing technologies.

Water–food–energy–climate nexus and technology productivity: a Nigerian case study of organic leafy vegetable production

Low agricultural productivity is a major challenge constraining food production in developing countries. Attempts at addressing the problem have resulted in the development and deployment of agricultural technologies, such as organic farming, to help boost productivity, enhance farmers’ income, and their overall livelihood conditions. The deployment of such productivity-enhancing technologies has mostly overlooked their inexplicable interconnectedness and interdependencies with nexus factors such as climate, water, and energy within the embeddings of a food production system. Through a Nigerian case study approach, this study attempts to bridge this gap by qualitatively investigating how organic leafy vegetable production (OLVP) and its anticipated outcomes can be affected by the interface of water, energy, and climate with food production. This was intended to generate exploratory insights that will help underscore why cross-sectoral linkages should be accounted for when deploying agricultural technology interventions. To achieve this objective, we conducted in-depth interviews and focus group discussions, and field visits to the farms of organic farmers in Ajibode, Ibadan, Nigeria. Results indicate that the productivity of OLVP was severely constrained by highly contextual nexus factors such as energy deficit, the water source for irrigation, changes in rainfall patterns, and temperature effect of harmattan. We concluded that location-specific nexus elements that intersect with food production should be accounted for when introducing productivity-enhancing technologies. Otherwise, the opportunity for improved agricultural productivity may remain elusive. Finally, our study shows that the nexus approach can help reveal intricately linked cross-sectoral factors that can constrain the performance of agricultural technologies.

Within-Season Producer Response to Warmer Temperatures: Defensive Investments by Kenyan Farmers

AbstractWe present evidence that farmers adjust agricultural inputs in response to within-season temperature variation, undertaking defensive investments to reduce the adverse agro-ecological impacts of warmer temperatures. Using panel data from Kenyan maize-growing households, we find that higher temperatures early in the growing season increase the use of pesticides, while reducing fertiliser use. Warmer temperatures throughout the season increase weeding effort. These adjustments arise because greater heat increases the incidence of pests, crop diseases and weeds, compelling farmers to divert investment from productivity-enhancing technologies such as fertiliser to adaptive, loss-reducing, defensive inputs such as pesticides and weeding labour.

Agriculture Sector Growth and Inflation in Ethiopia: Evidence from Autoregressive Distributed Lag Model

There is cross country difference about the relationship between economic growth and inflation. Although the issue is the most researched topic, limited studies were undertaken at sectoral level, such as the relationship between inflation and agriculture sector growth. Therefore, this study examines the effect of inflation on agriculture sector growth of Ethiopia from 1980-2018 using Autoregressive Distributed Lag model. Inflation has negative and significant long-run relation with agriculture sector growth suggesting that inflation is harmful to agriculture sector growth than stimulating it. Other regressors such as total factors productivity, arable land and labour force growth have positive and significant long-run relationship with agriculture growth. In the short run, the growth of agriculture sector has positive and significant relationship with its lagged value, capital, labour force, factors productivity, inflation and exchange rate. Thus, to increase the growth of agriculture sector, government should moderate inflation using prudent monetary and fiscal policy. It should also monitor the efficacy and suitability of agriculture investment to countries context. As land is fixed input, intensive agriculture and productivity enhancing technologies should be applied. Increasing labour skill through training could also increase agriculture output.

Endogenous TFP, Business Cycle Persistence and the Productivity Slowdown in the Euro Area

This paper analyses the endogeneity of euro area total factor productivity and its role in business cycle amplification by estimating a medium-scale DSGE model with endogenous productivity mechanism on euro area data. In this framework, total factor productivity evolves endogenously as a consequence of costly investment in R&D and adoption of new technologies. We find that the endogeneity of TFP induces a high degree of persistence in the euro area business cycle via a feedback mechanism between overall economic conditions and investment in productivity-enhancing technologies. As to the sources of the euro area productivity slowdown, we conclude that a decrease in the efficiency of R&D investment is among the key factors generating the pre-crisis productivity slowdown, while starting from the Great Recession a shock to liquidity demand is identified as the most important driving force. The endogenous technology mechanism further exerts a dampening effect on the inflation response following a recessionary shock and hence has important implications for both the negligible fall in inflation during the Great Recession, as well as the sluggish increase of inflation in the subsequent recovery. JEL Classification: E24, E32, O31

Perceived benefits, constraints and determinants of sustainable intensification of mixed crop and livestock systems in the Sahelian zone of Burkina Faso

ABSTRACT In West African Sahel, there has been an only limited intensification of the mixed crop and livestock systems due to many constraints faced by smallholder farmers including climate change, low use of external inputs, insecure land tenure, and low adoption of productivity-enhancing technologies. However, the growing demand for food caused by a rapidly growing population offers opportunities for intensification of farming systems in the region in view of the current low productivity. A study involving 400 households was carried out in two provinces (Seno and Yatenga) in Burkina Faso in the Sahelian zone of the country to characterize the intensification practices by smallholder farmers in mixed crop and livestock systems. Our results confirmed the advantage of intensification practices in terms of increased crop and livestock productivity which is critical to improving food security. Also, the results showed that access to extension services is an important determinant of adoption of intensification practices in both study sites, which reaffirmed the vital role of extension services in adoption of agricultural technologies. The results also showed strong differences in adoption of intensification practices between the two provinces driven by their divergent history of land use, even though both provinces fall in the same agro-ecological zone.