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9,695 Results Found

  • Article
  • Open Access
34 Citations
6,335 Views
17 Pages

Predation in Organic and Free-Range Egg Production

  • Monique Bestman and
  • Judith Bikker-Ouwejan

21 January 2020

On organic and free-range poultry farms, a free-range is provided for animal welfare reasons. However, farmers report sightings of birds of prey and sometimes foxes or other predators within the free-range areas. In addition to seeing actual attacks,...

  • Case Report
  • Open Access
14 Citations
6,532 Views
10 Pages

Home Range and Activity Patterns of Free-Ranging Cats: A Case Study from a Chinese University Campus

  • Zhenwei Zhang,
  • Yuhang Li,
  • Sana Ullah,
  • Lixin Chen,
  • Sihan Ning,
  • Liangyu Lu,
  • Weiming Lin and
  • Zhongqiu Li

28 April 2022

Human activities and the available resources influence the home range and activity patterns of free-ranging cats. Our objective in this study was to determine sex and breeding season vs. non-breeding season home range size, as well as activity patter...

  • Article
  • Open Access
62 Citations
8,439 Views
13 Pages

Ranging Behaviour of Commercial Free-Range Laying Hens

  • Leonard Ikenna Chielo,
  • Tom Pike and
  • Jonathan Cooper

26 April 2016

In this study, the range use and behaviour of laying hens in commercial free-range flocks was explored. Six flocks were each visited on four separate days and data collected from their outdoor area (divided into zones based on distance from shed and...

  • Article
  • Open Access
13 Citations
3,420 Views
13 Pages

Intestinal Microbial Diversity of Free-Range and Captive Yak in Qinghai Province

  • Ying Wen,
  • Shaofei Li,
  • Zishuo Wang,
  • Hao Feng,
  • Xiaoting Yao,
  • Mingjie Liu,
  • Jianjun Chang,
  • Xiaoyu Ding,
  • Huiying Zhao and
  • Wentao Ma

Background: The gut microbiome is a large and complex organic assemblage with subtle and close relationships with the host. This symbiotic mechanism is important for the health and adaptability of the host to the environment. Compared with other rumi...

  • Article
  • Open Access
3 Citations
1,606 Views
14 Pages

Effects of Free-Range Systems on Muscle Fiber Characteristics and Welfare Indicators in Geese

  • Guoyao Wang,
  • Jianzhou Chen,
  • Yujiao Guo,
  • Kaiqi Weng,
  • Yu Zhang,
  • Yang Zhang,
  • Guohong Chen,
  • Qi Xu and
  • Yang Chen

22 January 2025

Recently, free-range poultry production has increased with notable benefits for animal welfare and meat quality traits. Geese, the third-most productive poultry species, have not been studied extensively. This study investigated the effects of differ...

  • Article
  • Open Access
33 Citations
6,764 Views
14 Pages

Free Dietary Choice and Free-Range Rearing Improve the Product Quality, Gait Score, and Microbial Richness of Chickens

  • Siyu Chen,
  • Hai Xiang,
  • Xu Zhu,
  • Hui Zhang,
  • Dan Wang,
  • Huagui Liu,
  • Jikun Wang,
  • Tao Yin,
  • Langqing Liu and
  • Xingbo Zhao
  • + 3 authors

1 June 2018

Poultry welfare has been extensively studied; however, there is a lack of rigorous scientific knowledge relating to the different aspects of welfare factors and how this may contribute to the production quantity and product quality as well as the wel...

  • Article
  • Open Access
22 Citations
7,966 Views
19 Pages

The Relationship between Animal Welfare and Farm Profitability in Cage and Free-Range Housing Systems for Laying Hens in China

  • Shuai He,
  • Jiao Lin,
  • Qiongyu Jin,
  • Xiaohan Ma,
  • Zhongying Liu,
  • Hui Chen,
  • Ji Ma,
  • Huancheng Zhang,
  • Kris Descovich and
  • Zhonghong Wu
  • + 2 authors

16 August 2022

Several countries and regions have regulations in place to provide standards for the welfare of production animals, which have implications for breeding, management and trade. In the chicken egg production industry, the welfare impacts of this are no...

  • Article
  • Open Access
34 Citations
10,448 Views
20 Pages

19 November 2020

Free-range chicken farming allows egg-laying hens to move freely through their environment and perform their natural behavior, including laying her eggs. However, it takes time to gather these eggs manually, giving rise to high labor costs. This stud...

  • Article
  • Open Access
1,259 Views
18 Pages

Enhancing Range Use in Free-Range Laying Hen Systems: The Impact of Vegetation Cover over Time

  • Markus Pacher-Deutsch,
  • Philipp Meyer,
  • Harald Meimberg and
  • Martin Gierus

23 April 2025

Outdoor ranges in free-range laying hen systems are often underutilised, likely due to their open, uncovered nature. Given that the domestic chicken’s ancestor inhabits forests with high canopy cover, similar habitat preferences can be expected...

  • Article
  • Open Access
7 Citations
3,178 Views
14 Pages

18 July 2022

It is urgent to explore new ways to protect endangered wild animals and develop sustainable animal husbandry on the Qinghai–Tibet Plateau due to its fragile ecological environment. Ruminants, raised in captivity and free-range, have important n...

  • Article
  • Open Access
14 Citations
5,858 Views
13 Pages

Prevalence of Swine Gastrointestinal Parasites in Two Free-Range Farms from Nord-West Region of Romania

  • Mihai-Horia Băieş,
  • Zsolt Boros,
  • Călin Mircea Gherman,
  • Marina Spînu,
  • Attila Mathe,
  • Stefan Pataky,
  • Menelaos Lefkaditis and
  • Vasile Cozma

23 August 2022

Parasitic diseases cause significant economic losses in swine, including free-range swine farms, the number of which in Romania has increased in the last decades. The current study aimed to identify the parasitic profile of swine raised on two free-r...

  • Article
  • Open Access
10 Citations
2,740 Views
13 Pages

Drinking Water and Biofilm as Sources of Antimicrobial Resistance in Free-Range Organic Broiler Farms

  • Alessandra Piccirillo,
  • Roberta Tolosi,
  • Lapo Mughini-Gras,
  • Jannigje G. Kers and
  • Andrea Laconi

Drinking water distribution systems (DWDSs) represent an ideal environment for biofilm formation, which can harbor pathogenic and antimicrobial-resistant bacteria. This study aimed to assess longitudinally the microbial community composition and anti...

  • Brief Report
  • Open Access
8 Citations
3,319 Views
9 Pages

Occurrence of Eimeria spp. and Intestinal Helminths in Free-Range Chickens from Northwest and Central Romania

  • Mircea Coroian,
  • Tünde-Zsuzsánna Fábián-Ravasz,
  • Patricia Roxana Dobrin and
  • Adriana Györke

7 February 2024

Chickens raised in backyard free-range systems are confronted with a significant threat of parasitic infections. Among the parasitic agents, protozoa belonging to the genus Eimeria and helminths, including Ascaridia galli, Capillaria spp., Heterakis ...

  • Article
  • Open Access
2 Citations
2,833 Views
11 Pages

Detection of a Novel Reassortant H9N9 Avian Influenza Virus in Free-Range Ducks in Bangladesh

  • Rabeh El-Shesheny,
  • Jasmine C. M. Turner,
  • David Walker,
  • John Franks,
  • Patrick Seiler,
  • Subrata Barman,
  • Mohammed M. Feeroz,
  • Md Kamrul Hasan,
  • Sharmin Akhtar and
  • Richard J. Webby
  • + 4 authors

24 November 2021

Wild aquatic birds are the primary natural reservoir for influenza A viruses (IAVs). In this study, an A(H9N9) influenza A virus (A/duck/Bangladesh/44493/2020) was identified via routine surveillance in free-range domestic ducks in Bangladesh. Phylog...

  • Article
  • Open Access
10 Citations
5,141 Views
13 Pages

Prevalence of Salmonella in Free-Range Pigs: Risk Factors and Intestinal Microbiota Composition

  • Victoria Garrido,
  • Lourdes Migura-García,
  • Inés Gaitán,
  • Ainhoa Arrieta-Gisasola,
  • Ilargi Martínez-Ballesteros,
  • Lorenzo Fraile and
  • María Jesús Grilló

18 June 2021

Extensive pig systems are gaining importance as quality production systems and as the standard for sustainable rural development and animal welfare. However, the effects of natural foods on Salmonella epidemiology remain unknown. Herein, we assessed...

  • Article
  • Open Access
10 Citations
4,782 Views
18 Pages

31 January 2022

Extreme sunlight might be aversive to free-range laying hens, discouraging them from going outside. Range enrichment with artificial shelters may protect hens from sunlight and increase range use. The preferences of 34–40-week-old Hy-Line Brown...

  • Article
  • Open Access
12 Citations
3,535 Views
15 Pages

4 March 2021

Access to pasture is a main benefit of free-range broiler housing systems, yet the level of outdoor stocking density on broiler animal welfare remains unsettled. The growth, feather damage, pasture ranging and behaviors were assessed for 150 mixed-se...

  • Article
  • Open Access
30 Citations
4,995 Views
12 Pages

Seroconversion of a Swine Herd in a Free-Range Rural Multi-Species Farm against HPAI H5N1 2.3.4.4b Clade Virus

  • Francesca Rosone,
  • Francesco Bonfante,
  • Marcello Giovanni Sala,
  • Silvia Maniero,
  • Antonella Cersini,
  • Ida Ricci,
  • Luisa Garofalo,
  • Daniela Caciolo,
  • Antonella Denisi and
  • Maria Teresa Scicluna
  • + 4 authors

Starting from October 2021, several outbreaks of highly pathogenic avian influenza virus (HPAIV) subtype H5N1 were reported in wild and domestic birds in Italy. Following the detection of an HPAIV in a free-ranging poultry farm in Ostia, province of...

  • Article
  • Open Access
24 Citations
5,659 Views
11 Pages

Productive Performances of Slow-Growing Chicken Breeds and Their Crosses with a Commercial Strain in Conventional and Free-Range Farming Systems

  • Edoardo Fiorilla,
  • Marco Birolo,
  • Ugo Ala,
  • Gerolamo Xiccato,
  • Angela Trocino,
  • Achille Schiavone and
  • Cecilia Mugnai

7 August 2023

Local chicken breeds play a vital role in promoting sustainability by preserving genetic diversity, enhancing resilience, and supporting local economies. These breeds are adapted to local climates and conditions, requiring fewer external resources an...

  • Article
  • Open Access
437 Views
19 Pages

Complete Genome Sequence Analysis and Probiotic Characterisation of Lactiplantibacillus plantarum Y300 Isolated from Traditional Free-Range Chickens

  • Xiaoyu Zhang,
  • Xuehuai Shen,
  • Dongdong Yin,
  • Jieru Wang,
  • Ruihong Zhao,
  • Yin Dai,
  • Erhui Jin,
  • Xiaocheng Pan and
  • Lei Yin

As a core strategy for antibiotic replacement, probiotics have two advantages insofar as they enhance both animal productivity and pathogen suppression. In this study, we screened the intestines of antibiotic-naïve chickens for broad-spectrum an...

  • Feature Paper
  • Article
  • Open Access
2 Citations
1,049 Views
23 Pages

Can a Digital Application for Animal Welfare Self-Assessments by Farmers Help Improve the Welfare of Free-Range and Organic Pigs?

  • Evelien A. M. Graat,
  • Charlotte Vanden Hole,
  • T. Bas Rodenburg,
  • Mona F. Giersberg and
  • Frank A. M. Tuyttens

23 November 2024

As part of the European Green Deal, the EU has recognised that there is a need to increase organic farming as well as improve animal welfare standards. The PIGLOW app was developed with these goals in mind and allows free-range and organic pig farmer...

  • Article
  • Open Access
5 Citations
3,907 Views
13 Pages

Assessment of Macro-, Micro-, Trace, and Ultratrace Element Concentration in Green-Legged Partridge Hens’ Eggs from a Free-Range System

  • Tadeusz Trziszka,
  • Zbigniew Dobrzański,
  • Katarzyna Chojnacka,
  • Anna Bubel,
  • Halina Beń,
  • Mariusz Korczyński,
  • Damian Konkol and
  • Wojciech Tronina

The goal of this research was to determine the concentration of macro-, micro-, trace, and ultratrace elements in egg albumen and yolk of Green-Legged Partridge (GLP) hens (Polish native breed) maintained in a free-range system. The hens received two...

  • Article
  • Open Access
7 Citations
4,998 Views
25 Pages

28 November 2023

Although current diet and nutrition trends in developed countries led the poultry industry to shift to alternative breeding/production methods, such as organic and free-range, limited data on the microbiology of alternative compared to conventional p...

  • Article
  • Open Access
13 Citations
3,216 Views
13 Pages

6 April 2023

Antimicrobial-resistant Escherichia coli isolates have emerged in various ecologic compartments and evolved to spread globally. We sought to (1.) investigate the occurrence of ESBL-producing E. coli (ESBL-Ec) in feces from free-range chickens in a ru...

  • Article
  • Open Access
1,360 Views
13 Pages

Detection of DNA Viruses in Free-Ranging Rat Populations in Hungary

  • Márton Z. Vidovszky,
  • András Surján,
  • Gábor Földvári and
  • László Egyed

19 December 2024

To address a gap in our understanding of viral infections in epidemiologically important rat species, we aimed to detect DNA viruses from the tissues of free-ranging rat populations in Hungary. DNA viruses were identified from the parenchymal organs...

  • Article
  • Open Access
30 Citations
6,022 Views
18 Pages

African Swine Fever Circulation among Free-Ranging Pigs in Sardinia: Data from the Eradication Program

  • Giulia Franzoni,
  • Silvia Dei Giudici,
  • Federica Loi,
  • Daria Sanna,
  • Matteo Floris,
  • Mariangela Fiori,
  • Maria Luisa Sanna,
  • Paola Madrau,
  • Fabio Scarpa and
  • Annalisa Oggiano
  • + 6 authors

21 September 2020

African swine fever virus (ASFV), the cause of a devastating disease affecting domestic and wild pigs, has been present in Sardinia since 1978. In the framework of the regional ASF eradication plan, 4484 illegal pigs were culled between December 2017...

  • Article
  • Open Access
7 Citations
2,161 Views
8 Pages

Prevalence and Molecular Characterisation of Blastocystis sp. Infecting Free-Ranging Primates in Colombia

  • Silvia Rondón,
  • Serena Cavallero,
  • Andrés Link,
  • Camila González and
  • Stefano D’Amelio

Infection with Blastocystis sp. has been reported in free-living and captive non-human primates (NHPs); however, surveys on Blastocystis sp. from north-western South America are scarce. This study aimed to identify Blastocystis sp. in free-ranging NH...

  • Article
  • Open Access
3 Citations
5,280 Views
18 Pages

29 July 2021

Using Indian free-ranging dogs (FRD) as a case study, we propose a novel intervention of social integration alongside previously proposed methods for dealing with FRD populations. Our study subsumes population dynamics, funding avenues, and innovativ...

  • Article
  • Open Access
53 Citations
6,873 Views
16 Pages

Individual Ranging Behaviour Patterns in Commercial Free-Range Layers as Observed through RFID Tracking

  • Hannah Larsen,
  • Greg M. Cronin,
  • Sabine G. Gebhardt-Henrich,
  • Carolynn L. Smith,
  • Paul H. Hemsworth and
  • Jean-Loup Rault

9 March 2017

In this exploratory study, we tracked free-range laying hens on two commercial flocks with Radio Frequency Identification (RFID) technology with the aim to examine individual hen variation in range use. Three distinct outdoor zones were identified at...

  • Article
  • Open Access
2 Citations
2,006 Views
13 Pages

5 September 2024

Aleutian Mink Disease Virus (AMDV) is the causative agent of Aleutian disease (AD). This progressive and chronic disorder significantly impacts the mink breeding industry, affecting farmed and free-ranging American and European mink. This study inves...

  • Feature Paper
  • Article
  • Open Access
13 Citations
3,925 Views
13 Pages

5 May 2020

Understanding the natural behaviour of pigs in free-range conditions facilitates interpretation of their behaviour in intensive conditions. Studying six different farms over two years at different seasons, with climatic and management variations, all...

  • Article
  • Open Access
18 Citations
4,045 Views
16 Pages

Traditional Free-Ranging Livestock Farming as a Management Strategy for Biological and Cultural Landscape Diversity: A Case from the Southern Apennines

  • Claudia Troiano,
  • Maria Buglione,
  • Simona Petrelli,
  • Sofia Belardinelli,
  • Antonino De Natale,
  • Jens-Christian Svenning and
  • Domenico Fulgione

9 September 2021

Mediterranean mountain landscapes are undergoing a widespread phenomenon of abandonment. This brings, as a consequence, the loss of traditional land use practices, such as transhumant pastoralism, as well as shrub and wood encroachment, with repercus...

  • Article
  • Open Access
19 Citations
5,776 Views
15 Pages

19 May 2021

Consumer interest in buying eggs from animal welfare-friendly systems with outdoor access is increasing, leading to an increase in the need for knowledge on genotypes suitable for free-range systems. Two Turkish laying hen genotypes, Atak-S (brown, n...

  • Article
  • Open Access
7 Citations
3,451 Views
11 Pages

27 December 2021

Free-range systems are considered to improve bird health and welfare, thereby satisfying consumer demands. Behavioral time budget, fear level and clinical welfare indicators were compared for two Turkish laying hen genotypes, Atak-S (brown) and Atabe...

  • Article
  • Open Access
9 Citations
3,532 Views
16 Pages

Influence of Dietary Supplementation with Boswellia serrata and Salix alba on Performance and Blood Biochemistry in Free-Range Leghorn Laying Hens

  • Alessandro Guerrini,
  • Thomas Dalmonte,
  • Caterina Lupini,
  • Giulia Andreani,
  • Roberta Salaroli,
  • Giulia Quaglia,
  • Augusta Zannoni,
  • Maurizio Scozzoli,
  • Monica Forni and
  • Gloria Isani

11 April 2022

This study was conducted to evaluate the safety and the beneficial effects of dietary supplementation with Boswellia serrata (Bs) and Salix alba (Sa) in Leghorn hens during the critical pre-laying and laying phases. A total of 120 pullets, 17 weeks o...

  • Article
  • Open Access
29 Citations
7,281 Views
15 Pages

17 February 2023

This study evaluates the effect of housing environment on the egg quality characteristics of brown egg layers as many different environments are currently used in the industry. Battery cages, barren colony cages, enriched colony cages, cage-free, and...

  • Article
  • Open Access
26 Citations
5,125 Views
10 Pages

Ehrlichia minasensis, a recently described Ehrlichia species that is the most closely related to, but clearly distinct from, Ehrlichia canis, has been circulating in not only bovines, cervids, and dogs but also several tick species from Canada, Brazi...

  • Article
  • Open Access
13 Citations
3,501 Views
9 Pages

The Effects of Production System and Sex on the Sensory Quality Characteristics of Dorper Lamb

  • Louwrens Christiaan Hoffman,
  • Bianca Claasen,
  • Daniël André Van der Merwe,
  • Schalk Willem Petrus Cloete and
  • Jasper Johannes Erasmus Cloete

2 June 2020

The effect of production systems on the sensory quality characteristics of Dorper lambs was investigated. Sixty lambs (ewes, rams, castrates) were allocated into two production groups (feedlot or free-range) at weaning with equal numbers of each sex...

  • Article
  • Open Access
6 Citations
6,873 Views
12 Pages

Comparison of Fatty Acid Profile in Egg Yolk from Late-Age Hens Housed in Enriched Cages and in a Free Range System

  • Meng Peng,
  • Siria Tavaniello,
  • Mirosław Banaszak,
  • Sebastian Wlaźlak,
  • Marisa Palazzo,
  • Giulia Grassi and
  • Giuseppe Maiorano

4 April 2024

In recent years, the free-range system for laying hens has increased, driven by societal sensitivity to animal welfare. This study aimed to comparatively analyze the total lipid, cholesterol, and fatty acid composition of egg yolks of late-age laying...

  • Article
  • Open Access
19 Citations
3,318 Views
20 Pages

Relationship between Range Use and Fearfulness in Free-Range Hens from Different Rearing Enrichments

  • Md Saiful Bari,
  • Simon S. Allen,
  • Jarrod Mesken,
  • Andrew M. Cohen-Barnhouse and
  • Dana L. M. Campbell

25 January 2021

Inconsistency between the environments of indoor pullet rearing and adult outdoor housing may increase the fearfulness in free-range hens. Rearing enrichments and/or range use may reduce adult fearfulness. Hy-Line Brown® chicks (n = 1700) were re...

  • Article
  • Open Access
36 Citations
4,652 Views
22 Pages

8 January 2020

It is of merit to study the appropriate amount of dietary fiber to add to free-range chickens’ feed to improve their microbial diversity and gut health in times of plant fiber deprivation. Lignocellulose is a useful source of dietary fiber, and...

  • Article
  • Open Access
1 Citations
2,397 Views
22 Pages

Evaluation of the Quality of Guinea Fowl (Numida meleagris) Eggs from Free-Range Farming Depending on the Storage Period and Age of Laying Hens

  • Mateusz Bucław,
  • Michalina Adaszyńska-Skwirzyńska,
  • Danuta Majewska,
  • Danuta Szczerbińska and
  • Małgorzata Dzięcioł

8 July 2024

The aim of the study was to determine the changes occurring in the eggs of helmeted guinea fowl (Numida meleagris) from free-range farming in relation to the laying season and storage time. The experimental material consisted of 360 guinea fowl eggs,...

  • Article
  • Open Access
24 Citations
4,532 Views
16 Pages

16 November 2018

Free-range laying hen systems provide individuals a choice between indoor and outdoor areas where range use may be socially influenced. This study used radio-frequency identification technology to track the ranging of individually-tagged hens housed...

  • Feature Paper
  • Article
  • Open Access
32 Citations
6,025 Views
14 Pages

Spatial Cognition and Range Use in Free-Range Laying Hens

  • Dana L.M. Campbell,
  • Andrew C. Talk,
  • Ziyang A. Loh,
  • Tim R. Dyall and
  • Caroline Lee

8 February 2018

Radio-frequency identification tracking shows individual free-range laying hens vary in range use, with some never going outdoors. The range is typically more environmentally complex, requiring navigation to return to the indoor resources. Outdoor-pr...

  • Feature Paper
  • Article
  • Open Access
1,474 Views
13 Pages

Pasture vs. Coop: Biomarker Insights into Free-Range and Conventional Broilers

  • Constantinos Tellis,
  • Ioannis Sarrigeorgiou,
  • Gerasimina Tsinti,
  • Apostolos Patsias,
  • Evgenia Fotou,
  • Vasiliki Moulasioti,
  • Dimitra Kyriakou,
  • Maria Papadami,
  • Vassilios Moussis and
  • Peggy Lymberi
  • + 4 authors

24 October 2024

Identifying blood components influenced by rearing systems that serve as biomarkers to distinguish free-range from conventional broilers can improve animal health, welfare, and productivity. The current study aimed to evaluate specific blood paramete...

  • Article
  • Open Access
11 Citations
5,521 Views
19 Pages

Behaviour in Slower-Growing Broilers and Free-Range Access on Organic Farms in Sweden

  • Lina Göransson,
  • Stefan Gunnarsson,
  • Anna Wallenbeck and
  • Jenny Yngvesson

15 October 2021

Two slower-growing hybrids (Rowan Ranger and Hubbard) are currently reared in organic broiler production in Sweden, but knowledge of bird welfare on commercial farms is limited. This study examined chicken behaviour, including free-range use and feat...

  • Article
  • Open Access
2 Citations
2,717 Views
20 Pages

Do Hens Use Enrichments Provided in Free-Range Systems?

  • Victoria Sandilands,
  • Laurence Baker,
  • Jo Donbavand and
  • Sarah Brocklehurst

12 April 2022

Hens in free-range systems are given enrichments to increase foraging and limit injurious pecking, but the efficacy of enrichment types requires investigation. We studied hen behaviour and feather cover in eight commercial free-range flocks each give...

  • Article
  • Open Access
2,245 Views
14 Pages

Near-Infrared (NIR) Spectroscopy as an Alternative for Predicting n-Alkane Concentration in Excreta of Laying Hens: NIR-Generated Data for Dietary Composition Estimation

  • Laid Dardabou,
  • José Carlos Martínez Ávila,
  • Markus Werner Schmidt,
  • Károly Dublecz,
  • Christiane Schwarz,
  • Miguel Angel Ibáñez and
  • Martin Gierus

5 March 2024

N-alkanes offer a promising approach for assessing the nutritional contribution of external sources to the diets of laying hens in free-range production systems. However, traditional laboratory methods, involving extraction, purification and gas chro...

  • Review
  • Open Access
2 Citations
5,168 Views
19 Pages

The Potential of Understory Production Systems to Improve Laying Hen Welfare

  • Shaocong Yan,
  • Chenyujing Yang,
  • Lei Zhu and
  • Yongji Xue

5 September 2022

The welfare of laying hens in cage systems is of increasing concern. Represented by the European Union’s ‘End the Cage Age’ initiative, more and more countries have advocated cage-free farming. China, an important country for poultr...

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