Alleviating heat stress effects in poultry: updates on methods and mechanisms of actions

Frontiers in Veterinary Science, Год журнала: 2023, Номер 10

Опубликована: Сен. 27, 2023

Heat stress is a threat that can lead to significant financial losses in the production of poultry world’s tropical and arid regions. The degree heat (mild, moderate, severe) experienced by depends mainly on thermal radiation, humidity, animal’s thermoregulatory ability, metabolic rate, age, intensity, duration stress. Contemporary commercial broiler chickens have rapid metabolism, which makes them produce higher be prone negative effect birds’ physiology, health, production, welfare, behaviors are reviewed detail this work. appropriate mitigation strategies for equally explored review. Interestingly, each these finds its applicability at different stages poultry’s lifecycle. For instance, gene mapping prior breeding genetic selection during promising tools developing heat-resistant breeds. Thermal conditioning embryonic development or early life enhances ability birds tolerate their adult life. Nutritional management such as dietary manipulations, nighttime feeding, wet feeding often, applied with timely effective correction environmental conditions been proven ameliorate chicks birds. As long climatic crises persist, may continue require considerable attention; thus, it imperative explore current happenings pay attention future trajectory effects production.

Язык: Английский

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Comparative life cycle assessment for the sustainable production of fermentation-based L-methionine

Journal of Cleaner Production, Год журнала: 2024, Номер 462, С. 142700 - 142700

Опубликована: Май 27, 2024

Methionine, essential for human and animal growth, faces increasing demand, contributing significantly to greenhouse gas emissions through digestion nitrogen excretion. This study introduces L-methionine (L-Met) produced biologically from CJ CheilJedang Corp., offering a sustainable alternative the conventional petroleum-based DL-methionine (DL-Met) due its higher bioavailability reduced environmental impact. One of most important aspects lifecycle L-Met is reduce impact during production stage. Consequently, aim this evaluates environmentally improved product, Eco, life cycle assessment compared DL-Met. We employed scenario analysis consider uptake CO2 by bio-based feedstock, methionine, system expansion co-products. Our findings indicate that Eco have lower global warming potentials 0.92 0.79 kg CO2/kg Met, respectively, than DL-Met (2.60−3.32 Met). Sensitivity further suggests optimizing renewable energy use location can enhance sustainability production. comprehensive offers valuable insights stakeholders in material sector, promoting practices.

Язык: Английский

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Feeding Strategies to Reduce Nutrient Losses and Improve the Sustainability of Growing Pigs

Frontiers in Veterinary Science, Год журнала: 2021, Номер 8

Опубликована: Окт. 28, 2021

The efficiency of pig production using nutrients has increased over the years. Still, better nutrient utilization can be achieved by feeding pigs with diets adjusted to their estimated requirements. An increase in represents economic gains while maximizing environmental performance. objective this paper is review impact different methods diet formulation that provide farm animals amount satisfy needs minimizing excretion and greenhouse gas emissions. Diet one tool help maximize nitrogen energy decreasing crude protein content diets. use local feedstuff non-human-edible products (e.g., canola meal) associated synthetic amino acid inclusion are valuable techniques reduce carbon footprint. Precision nutrition another powerful allows not only daily tailoring for maximal but also costs improve utilization. In review, we simulated through mathematical models resulting from reduction diet. 8% 54% costing 11% less than a control without acids. same represented major improvement available due decrease energetic losses linked deamination. Urinary hindgut fermentation were 24% lower fed low-protein when compared terms modern strategies, precision 30% group phase feeding. benefits additive might result 61% There room way requirements pigs. Improving understanding variation among contribute further gains.

Язык: Английский

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Impacts of Maternal Nutrition on Sow Performance and Potential Positive Effects on Piglet Performance

Animals, Год журнала: 2024, Номер 14(13), С. 1858 - 1858

Опубликована: Июнь 23, 2024

The objectives of this review are to identify the nutritional challenges faced by modern sows and present potential solutions mitigate excessive maternal tissue loss reproductive failure as it relates recent genetic improvements. Current feeding programs have limitations support rapid improvements in performance for sows. Since 2012, both litter size at birth fetal weight increased 2.26 pigs per 0.22 kg piglet, respectively, thereby increasing nutrient needs during gestation lactation. Prediction models generated predict that would need 31% more lysine when compared with current programs. Physiological facing also addressed review. High oxidative stress, pelvic organ prolapse, lameness can directly affect sow, whereas these physiological negative impacts on colostrum milk quality. In response, there is growing interest investigating functional roles select bioactive compounds feed additives severity challenges. Selenium sources, catechins, plant extracts been utilized reduce calcium chloride phytase used prolapse lameness, algae yeast derivatives improve quality, fiber sources probiotics commonly sow intestinal health. Collectively, demonstrates unique associated managing opportunities revision amino acid requirements well use performance.

Язык: Английский

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Challenges and opportunities for improving nitrogen utilization efficiency for more sustainable pork production

Frontiers in Animal Science, Год журнала: 2023, Номер 4

Опубликована: Июль 19, 2023

Pork is one of the most consumed animal-derived protein sources around world, but less than 45% dietary nitrogen (N) converted into edible lean meat. This inefficiency contributes to 80% human-induced N emissions that have resulted in exceeding planetary boundaries for N. Reducing this requires using a multifaceted approach. Swine genetic selection programs improved rate growth recent decades, further improvements may be difficult because lack variation within global pig population. Breeding increase litter size led intrauterine restriction and an increased proportion low-birth-weight piglets which do not utilize as efficiently normal birth weight pigs. Intact males greater efficiency castrates gilts, use immunocastration technology has been implemented some countries capture benefit while minimizing boar taint Use other metabolic modifiers including porcine somatotropin ractopamine, alone or combination with immunocastration, can enhance efficiency, general consumer acceptance potential food safety concerns regulatory restrictions many countries. Because feed production about 70% systems, precision formulation feeding practices, selected additives, processing, wastage appear offer greatest opportunity reduce waste environmental footprint improve sustainability pork production.

Язык: Английский

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A systematic review of life-cycle GHG emissions from intensive pig farming: Accounting and mitigation

The Science of The Total Environment, Год журнала: 2023, Номер 907, С. 168112 - 168112

Опубликована: Окт. 25, 2023

Язык: Английский

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Reducing dietary crude protein in broiler diets positively affects litter quality without compromising growth performance whereas a reduction in dietary electrolyte balance further improves litter quality but worsens feed efficiency

Animal Feed Science and Technology, Год журнала: 2023, Номер 297, С. 115571 - 115571

Опубликована: Янв. 13, 2023

Reducing crude protein (CP) in broiler feed is a nutritional strategy that allows to partially reduce dietary soybean meal (SBM) inclusions costs, with proven benefits. In addition, reduction of CP leads lower electrolyte balance (dEB) due the concomitant potassium (K). The aim present study therefore two-fold: 1) evaluate potential until performance drops (1, 2 or 3 % points reduction) and 2) combine it dEB (by reducing K) validate benefit reduced dEB/K on litter quality without compromising performance. total, 9100 male Ross 308 chicks were randomly allotted 35 pens 260 broilers. They fed 5 treatments from 10 20d 20–30d.There was "positive control" diet (CONTROL; 20.7 grower, 19.5 finisher) levels by 1 (CP-1 %), 2% (CP-2 %) (CP-3 all diets formulated respect at least ideal AA profile for indispensable AA. an extra called "negative (NC CP-3 have same ingredient composition as but K level. low maintaining resulted similar better production 30d weight gain, intake, conversion ratio (FCR) carcass traits, daily water intake water-to-feed ratio, excreta N moisture well footpad lesions (FPL). level − (negative control) increased FCR FPL. It possible broilers performance, clear quality. As often associated K, SBM inclusion, extent control Na, Cl need be further explored, especially quality, facilitate adoption practice.

Язык: Английский

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Challenges and opportunities for improving circularity in the poultry meat and egg sector: The case of France

Resources Conservation and Recycling, Год журнала: 2023, Номер 193, С. 106963 - 106963

Опубликована: Март 27, 2023

Язык: Английский

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Environmental impacts of eco-nutrition swine feeding programs in spatially explicit geographic regions of the United States

Journal of Animal Science, Год журнала: 2022, Номер 100(12)

Опубликована: Окт. 28, 2022

Abstract This study was conducted to determine greenhouse gas (GHG) emissions, water consumption, land use, as well nitrogen (N), phosphorus (P), and carbon (C) balance of five diet formulation strategies feeding programs for growing-finishing pigs (25–130 kg body weight) in the three spatially explicit geographic regions where majority U.S. pork production occurs. Feeding evaluated consisted 1) standard corn-soybean meal (CSBM) diets, 2) CSBM containing 15% corn distillers dried grains with solubles (DDGS), 3) 8.6% thermally processed supermarket food waste (FW), 4) low crude protein diets supplemented synthetic amino acids (SAA), 5) phytase enzyme (PHY) added at 600 FTU (phytase units)/kg diet. An attributional Life Cycle Assessment approach using a highly specialized, Food System Supply-Chain Sustainability (FoodS3) model used quantify GHG use corn, soybean meal, DDGS based on county level sourcing. The DDGS, FW, SAA had less estimated N P intake excretion than CSBM, PHY program provided greatest reduction excretion. FW least overall emissions (319.9 vs. 324.6 354.1 CO2 equiv./market hog), (331.5 346.5 385.2 m2/market consumption (7.64 7.70 8.30 m3/market hog) among alternatives. (354.1 all but impacts (7.70 m3) (346.5 m2) per market hog PHY. 6.5–7.4% compared PHY, respectively. Regardless program, Midwest contributions attributed feed manure regions. Water associated much greater Southwest (59.66–63.58 (4.45–4.88 Mid-Atlantic (1.85–2.14 Results show that composition region significantly affect systems, potential relatively inclusion rates (<10%) can reduce environmental other common strategies.

Язык: Английский

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Leveraging Satellite Data for Greenhouse Gas Mitigation in Canadian Poultry Farming

Smart Agricultural Technology, Год журнала: 2024, Номер unknown, С. 100704 - 100704

Опубликована: Дек. 1, 2024

Язык: Английский

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