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El-Sabrout K, Sherasiya A, Ahmad S, Aggag S, Nannoni E, Cavallini D, Buonaiuto G. Environmental Enrichment in Rabbit Husbandry: Comparative Impacts on Performance and Welfare. Animals (Basel) 2024; 14:2367. [PMID: 39199901 PMCID: PMC11350770 DOI: 10.3390/ani14162367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 09/01/2024] Open
Abstract
Rabbits are highly susceptible to environmental stress. Such stress, stemming from conventional housing conditions, can negatively impact well-being and productivity. Some of these negative consequences are increased susceptibility to diseases and infections and reduced growth rates and reproductive performance, as well as increased behavioral issues such as aggression. Environmental enrichment is the modification of the environment in which a domesticated animal lives in order to meet the species' behavioral needs. The objective of providing enrichment is to facilitate animals in expressing natural behaviors, thereby preventing behavioral frustration and negative affective states. Several inexpensive and safe materials can be used to enrich rabbit enclosures. This review emphasizes the significance of implementing diverse environmental enrichments to alleviate stress in rabbit farming. It summarizes their effects on animal performance and welfare while exploring potential future perspectives in this field.
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Affiliation(s)
- Karim El-Sabrout
- Poultry Production Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
| | - Anjum Sherasiya
- Veterinary World, Wankaner, Star, Gulshan Park, Wankaner 363621, India
| | - Sohail Ahmad
- Poultry Production Department, Faculty of Animal Production and Technology, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Sarah Aggag
- Genetics Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
| | - Eleonora Nannoni
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy (D.C.)
| | - Damiano Cavallini
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy (D.C.)
| | - Giovanni Buonaiuto
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy (D.C.)
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Elsayed M, Soliman F, Elghalid O, El-Sabrout K. Using Different Cage Enrichments to Improve Rabbits' Performance, Behavior, and Welfare. Animals (Basel) 2024; 14:2271. [PMID: 39123797 PMCID: PMC11310941 DOI: 10.3390/ani14152271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/01/2024] [Accepted: 08/03/2024] [Indexed: 08/12/2024] Open
Abstract
Environmental enrichment is about improving the surroundings in which your animal lives by providing opportunities to express behavioral activity normally, which in turn has a great impact on the animal's welfare and productivity. The aim of the present study is to investigate the impact of using different enrichment cage tools (a rubber floor, plastic-colored balls, and a mirror) on rabbits' physiology, productivity, carcass quality, behavior, and welfare. A total of 84 weaned rabbits (V-line) were randomly and equally assigned to 4 groups, each with 7 replicates (3 rabbits/replicate). The 1st rabbit group (T1) served as a control, while the 2nd group (T2) was enriched with rubber floors. The 3rd group (T3) was enriched with plastic-colored balls, and the 4th group (T4) was enriched with mirrors. Productive traits, including the weekly body weight and feed intake, as well as the carcass characteristics, were measured. Hematological parameters and biochemical constituents were determined according to the reference's description. Furthermore, behavioral activities, such as walking, resting, feeding, and drinking, were observed. According to the results, enriching the rabbit cages with plastic-colored balls and mirrors improved the marketing body weight and feed conversion rate. It also improved carcass quality characteristics, such as the carcass weight and dressing percentage. The T3 and T4 rabbits had higher RBCS, Hb, and hematocrit levels as well as lower WBCS levels. They also had significantly higher total protein, globulin, glucose, AST, and IgG values than other treatments. In addition, they had significantly lower corticosterone levels and fear responses. Therefore, it is recommended to use plastic-colored balls and mirrors for rabbit farming for better productivity, behavior, and welfare.
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Affiliation(s)
| | | | | | - Karim El-Sabrout
- Poultry Production Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
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Ozella L, Sartore S, Macchi E, Manenti I, Mioletti S, Miniscalco B, Crosetto R, Ponzio P, Fiorilla E, Mugnai C. Behaviour and welfare assessment of autochthonous slow-growing rabbits: The role of housing systems. PLoS One 2024; 19:e0307456. [PMID: 39024371 PMCID: PMC11257336 DOI: 10.1371/journal.pone.0307456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 07/04/2024] [Indexed: 07/20/2024] Open
Abstract
Understanding the farming system impact on animals is crucial for evaluating welfare. Rabbits exhibit distinct behaviours influenced by their surroundings. The conditions in which they are raised directly influence behaviour and stress responses, emphasizing the importance of providing an optimal environment for their overall well-being and growth. In this study, we assessed the behaviour and welfare of two Italian local rabbit populations, namely the grey rabbit of Carmagnola and the grey rabbit of Monferrato. These rabbits are not yet officially recognized as breeds, but they are commonly used in Italy for meat production and represent a distinctive phenotype and local heritage among farmers and consumers. We analysed the behavioural patterns, physiological responses, and blood parameters of the animals to assess the influence of both age and three distinct housing systems (traditional single cages, group farming, and a mixed system) on rabbits' welfare. In this study, 294 weaned males with 35 days old were divided into three housing systems with seven replicates each until reaching slaughtering age (100 days of age). A traditional single cage system, a group farming with 10 animals each replicate and a Mixed pilot system with 10 rabbits initially grouped, then transferred to single cages. The findings from the behavioural analysis and the evaluation of salivary and hair corticosterone levels demonstrate that both the housing system and the age of the rabbits exerted significant effects on their welfare. Rabbits in group housing displayed a wider range of behavioural patterns, including increased kinetic activities such as running, walking, and exploration. However, this housing system was associated with higher levels of both salivary and hair corticosterone, indicating a high acute and chronic stress condition. The single cage system was associated with higher levels of acute stress and a low frequency of kinetic activities and social interactions, with a predominant behaviour of turning on themselves. The age factor significantly influenced the occurrence of behaviours, with younger rabbits exhibiting higher levels of kinetic activities, while social behaviours such as attacks and dominance were more prevalent as the rabbits reached sexual maturity (around 80-85 days of age). Moreover, the attainment of sexual maturity coincided with an increase in salivary corticosterone levels. We found a significant association between attack behaviours, escape attempts, and elevated corticosterone levels, by demonstrating that these behaviours can be used as indicators of decreased animals' well-being. Our findings underscore the importance of considering both the housing environment and the temporal dimension in the study of behaviour and welfare. This enables a comprehensive assessment of appropriate rearing management techniques. By understanding the social dynamics and stress sources within housing systems, farmers can implement measures to enhance animal welfare and create a conducive environment for the health and behaviour of rabbits.
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Affiliation(s)
- Laura Ozella
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Stefano Sartore
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Elisabetta Macchi
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Isabella Manenti
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Silvia Mioletti
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Barbara Miniscalco
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Riccardo Crosetto
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Patrizia Ponzio
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Edoardo Fiorilla
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Cecilia Mugnai
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
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Crovato S, Menegon F, Mascarello G, Pinto A, Nadin A, Piovan G, Ricaldi G, Di Martino G, Pozza G. Development of a Training Strategy Aimed at Increasing Veterinarians' Awareness of the Proper Use of Antibiotics on Rabbit Farms. Animals (Basel) 2023; 13:2411. [PMID: 37570220 PMCID: PMC10416837 DOI: 10.3390/ani13152411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
The rabbit sector faces significant challenges with antimicrobial usage (AMU) and antimicrobial resistance (AMR). A focus group involving nine rabbit sector stakeholders identified key issues contributing to high AMU and the need for veterinarians' training. Participants emphasized the lack of clear legislation, biosecurity standards, and the importance of training on best practices to reduce AMU. To address these concerns, a blended learning course for rabbit veterinarians was organized, focusing on responsible drug use to lower AMU. The course design promoted participant interaction using group exercises and online discussions. The output was an operational tool, encompassing crucial elements to reduce drug dependence, covering housing, environmental conditions, feed, reproduction, disease prevention, diagnosis, and treatments. Validated in veterinarians' daily practices, the tool proved valuable. The tool, presented as a checklist, assists veterinarians in supporting field activities regarding proper drug use and AMR issues. It also helps farmers address knowledge gaps in breeding management and adopt biosecurity practices for disease prevention. Participants were encouraged to use the tool during farm visits and collaborate with farmers. The project presented in the manuscript is a crucial step towards the development of effective strategies for responsible AMU and AMR mitigation in the rabbit sector and beyond.
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Spitzer HB, Meagher RK, Proudfoot KL. The impact of providing hiding spaces to farmed animals: A scoping review. PLoS One 2022; 17:e0277665. [PMID: 36441732 PMCID: PMC9704605 DOI: 10.1371/journal.pone.0277665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 11/01/2022] [Indexed: 11/29/2022] Open
Abstract
Many wild animals perform hiding behaviours for a variety of reasons, such as evading predators or other conspecifics. Unlike their wild counterparts, farmed animals often live in relatively barren environments without the opportunity to hide. Researchers have begun to study the impact of access to hiding spaces ("hides") in farmed animals, including possible effects on animal welfare. The aims of this scoping review were to: 1) identify the farmed species that have been most used in research investigating the provision of hides, 2) describe the context in which hides have been provided to farmed animals, and 3) describe the impact (positive, negative or neutral/inconclusive) that hides have on animals, including indicators of animal welfare. Three online databases (CAB Abstracts, Web of Science, and PubMed) were used to search for a target population of farmed animals with access to hiding spaces. From this search, 4,631 citations were screened and 151 were included in the review. Fourteen animal types were represented, most commonly chickens (48% of papers), cattle (9%), foxes (8%), and fish (7%). Relatively few papers were found on other species including deer, quail, ducks, lobsters, turkeys, and goats. Hides were used in four contexts: at parturition or oviposition (56%), for general enrichment (43%), for neonatal animals (4%), or for sick or injured animals (1%). A total of 218 outcomes relevant to our objectives were found including 7 categories: hide use, motivation, and/or preference (47% of outcomes), behavioural indicators of affective state (17%), health, injuries, and/or production (16%), agonistic behaviour (8%), abnormal repetitive behaviours (6%), physiological indicators of stress (5%), and affiliative behaviours (1%). Hiding places resulted in 162 positive (74%), 14 negative (6%), and 42 neutral/inconclusive (19%) outcomes. Hides had a generally positive impact on the animals included in this review; more research is encouraged for under-represented species.
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Affiliation(s)
- Hannah B. Spitzer
- Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada
| | - Rebecca K. Meagher
- Department of Animal Science and Aquaculture, Dalhousie University, Truro, Canada
| | - Kathryn L. Proudfoot
- Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada
- * E-mail:
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Use of Gnawing Hay Blocks: Effects on Productive Performance, Behavior and Reactivity of Growing Rabbits Kept in Parks with Different Sex-Group Compositions. Animals (Basel) 2022; 12:ani12091212. [PMID: 35565638 PMCID: PMC9100148 DOI: 10.3390/ani12091212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/30/2022] [Accepted: 05/03/2022] [Indexed: 11/25/2022] Open
Abstract
To improve animal welfare in collective park housing systems, this study assessed the effects of the provision of gnawing hay blocks and the group composition (F: females, M: males, FM: mixed sex) on performance, behavior, and reactivity of 288 growing rabbits reared in 18 parks (16 rabbits/park) from 31 to 73 days of age. The presence of gnawing blocks inside the feeding area of the parks scarcely affected performance and budget time, but decreased the time spent in the resting area compared to parks without blocks (p < 0.001); it increased the time spent moving during the open field test (p < 0.05) and the rate of rabbits that approached the object in the novel-object test (p < 0.05). As for sex-group composition, the feed conversion ratio was lower in parks F and FM than in park M (p < 0.05). During the open-field test, FM rabbits spent more time moving (p < 0.05), whereas M rabbits displayed self-grooming for a longer time (p < 0.01). Results related to production, behavior, and reactivity indicate the provision of gnawing blocks for welfare improvement, but do not support the change from current mixed-sex to single-sex rearing.
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Feng Y, Fan H, Liang X, Wang X, Gao G, Gun S. Environmental enrichment changes rabbits' behavior, serum hormone level and further affects cecal microbiota. PeerJ 2022; 10:e13068. [PMID: 35287345 PMCID: PMC8917805 DOI: 10.7717/peerj.13068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/15/2022] [Indexed: 01/12/2023] Open
Abstract
Many studies have shown that stress is associated with gut microbiota. Environmental enrichment (EE) could reduce stress in farm animals; however, limited information is available on the microbial community composition in rabbits raised with or without EE. This study aimed to identify EE influences on the behavior, serum hormonal levels, and cecal microbiota of rabbits. Two hundred Rex rabbits were segregated randomly within four cohorts (n = 50); reared for 76 d within standardized enclosures (non-enriched) or within cages containing a willow-stick (WS), rubber-duck (RD), or a can of beans (CB). The rabbits' ingestive, rest, locomotion, exploratory, grooming, and abnormal behavior were observed. The serum hormone levels for rabbits were measured, and cecal specimens were sequencedfrom the V3-V4 region using 16S rRNA amplicons. Environmental enrichment increased feeding and drinking time, promoted exploratory behavior, and reduced abnormal behavior in rabbits. Insulin-like growth factor 1(IGF-1) levels of the enriched cohorts were elevated in comparison to the control cohort. Serum cortisol level for CB cohort was markedly reduced in comparison to the control cohort (p < 0.05), while dopamine levels for CB cohort peaked. Further, we found that EE mainly affected the dominant microbiota. Several families, such as Erysipelotrichaceae, Tannerellaceae, Enterobacteriaceae, Burkholderiaceae, and Prevotellaceae were markedly reduced within the CB cohort. Bacteria such as Alloprevotella, Bifidobacterium, Enterobacteriaceae, Parabacteroides, and Erysipelatoclostridium were identified as having negative associations with the presence of serum cortisol. EE influenced rabbit behavior and serum hormonal levels, and CB enrichment was the most suitable for rabbits. Further, cecal microbiota composition and diversity were affected by CB enrichment. These findings suggested that CB could be considered for use in rabbit husbandry.
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Affiliation(s)
- Yang Feng
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Huimei Fan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xue Liang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Xiaofeng Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Guoyan Gao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Shuangbao Gun
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
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Huang Y, Bréda J, Savietto D, Debrusse AM, Bonnemère JM, Gidenne T, Combes S, Fortun-Lamothe L. Effect of housing enrichment and type of flooring on the performance and behaviour of female rabbits. WORLD RABBIT SCIENCE 2021. [DOI: 10.4995/wrs.2021.15848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study investigated the effect of housing enrichments (scratching card, gnawing material and a platform), of a change in height and in the type of flooring on the live weight, reproductive performance and behaviour of female rabbits, as well as on the feed intake and spatial distribution of females and their kits. A total of 40 multiparous female rabbits were monitored in three consecutive reproductive cycles (48-d intervals). Four days before parturition in each reproductive cycle, the females were randomly assigned to one of the five types of housing: Control (CNT: 102×47×30 cm, L×W× H); Scratching card (SCT: containing a scratching card); Gnawing materials (GNW: CNT dimensions plus a compressed lucerne hay block and a wooden stick); Platform (PLT: 102×47×60 cm, including a platform with a plastic floor) and Combination (CBN: PLT dimensions with the scratching card, the gnawing materials and a platform). Data were only recorded during the first and third reproductive cycles. The living conditions did not significantly alter the females’ live weight (4889 g at housing; 4890 g at mid-lactation; 4867 g at weaning), reproductive performance (9.0 kits born alive), survival of the kits (90%), nor the feed intake of females and their litters (542 g/day). Providing animals with a gnawing block stimulated Gnawing behaviour (median frequency per group: CTL=0.00, SCT=0.00, GNW=4.69, PLT=0.00, and CBN=2.34; PRearing up behaviour (median frequencies per group: CTL=0.00, SCT=0.00, GNW=0.00, PLT=2.08, and CBN=3.12; P=0.06), and when a platform was present, the rabbits used it (mean values per group: CTL=0.00, SCT=0.00, GNW=0.00, PLT=1.79, and CBN=4.91; P=0.003). Regarding the type of floor, females appeared to prefer the plastic mesh flooring (31.2%) to the wire mesh flooring (18.8%). To sum up, providing female rabbits with simple enrichments appears to stimulate specific behaviours like Gnawing and Rearing up and may contribute to their wellbeing.
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Kimm S, Rauterberg SL, Bill J, Stracke J, Kemper N, Fels M. Use of space, active and resting behaviour in fattening rabbits (Oryctolagus cuniculus) housed in a combi park system: A case study. Anim Welf 2021. [DOI: 10.7120/09627286.30.4.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this case study, a housing system for rabbits (Oryctolagus cuniculus) was developed, complying with the new German Welfare Regulation, and evaluated on-farm with regard to the rabbits' behaviour during four fattening periods. The housing system was characterised by the large
group size of fatteners (maximum 65 animals per group, 12 animals per m²) due to the merging of six former single units for does and their litters, post-weaning. A large elevated platform, a box with a roof (small elevated platform), a tube and gnawing materials were made available per
unit. The aim being to assess the suitability of the housing system for rabbits with regard to animal welfare, based on behavioural analyses. Therefore, the use of space by the rabbits (n = 247) was investigated by video analysis (instantaneous scan sampling) during daytime. Additionally,
the individual behaviour of 20 focal rabbits in different locations was assessed by continuous sampling. Results showed that rabbits preferred to huddle together in the outer units in the first weeks post-weaning. The highest animal densities were found under and in front of the large and
on the small platforms. The large platforms were visited increasingly from the 10th fattening day onwards. Elevated platforms supported resting and comfort behaviours. Nonelevated open-top areas enabled upright positions and locomotor behaviours. Aggression and stereotypic behaviours rarely
occurred. We conclude that the housing system supported species-specific behaviour and seemed to cater for the needs of rabbits in terms of welfare. Nevertheless, further investigation is needed to ascertain the effects on animal health and performance.
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How can housing system affect growth and carcass traits, meat quality and muscle fiber characteristics in biceps femoris and mineral content of tibia and femur bones in growing rabbits? Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Birolo M, Trocino A, Zuffellato A, Xiccato G. Time-based feed restriction and group composition in growing rabbits: Effects on feed intake pattern, growth performance, carcass traits and meat quality. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Munari C, Ponzio P, Macchi E, Elkhawagah AR, Tarantola M, Ponti G, Mugnai C. A multifactorial evaluation of different reproductive rhythms and housing systems for improving welfare in rabbit does. Appl Anim Behav Sci 2020. [DOI: 10.1016/j.applanim.2020.105047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Saxmose Nielsen S, Alvarez J, Bicout DJ, Calistri P, Depner K, Drewe JA, Garin-Bastuji B, Gonzales Rojas JL, Gortázar Schmidt C, Michel V, Miranda Chueca MÁ, Roberts HC, Sihvonen LH, Spoolder H, Stahl K, Velarde Calvo A, Viltrop A, Buijs S, Edwards S, Candiani D, Mosbach-Schulz O, Van der Stede Y, Winckler C. Health and welfare of rabbits farmed in different production systems. EFSA J 2020; 18:e05944. [PMID: 32626497 PMCID: PMC7008839 DOI: 10.2903/j.efsa.2020.5944] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The AGRI committee of the European Parliament requested EFSA to assess the welfare of rabbits farmed in different production systems, including organic production, and to update its 2005 scientific opinion about the health and welfare of rabbits kept for meat production. Considering reproducing does, kits and growing rabbits, this scientific opinion focusses on six different housing systems, namely conventional cages, structurally enriched cages, elevated pens, floor pens, outdoor/partially outdoor systems and organic systems. To compare the level of welfare in the different housing systems and rabbit categories, welfare impact scores for 20 welfare consequences identified from the literature were calculated, taking their occurrence, duration and severity into account. Based on the overall welfare impact score (sum of scores for the single welfare consequences), obtained via a 2‐step expert knowledge elicitation process, the welfare of reproducing does is likely (certainty 66–90%) to be lower in conventional cages compared to the five other housing systems. In addition, it is likely to extremely likely (certainty 66–99%) that the welfare of kits is lower in outdoor systems compared to the other systems and that the welfare is higher in elevated pens than in the other systems. Finally, it is likely to extremely likely (certainty 66–99%) that the welfare of growing rabbits is lower in conventional cages compared to the other systems and that the welfare is higher in elevated pens than in the other systems. Ranking of the welfare consequences allowed an analysis of the main welfare consequences within each system and rabbit category. It was concluded that for reproducing does, as well as growing rabbits, welfare consequences related to behavioural restrictions were more prominent in conventional cages, elevated pens and enriched cages, whereas those related to health problems were more important in floor pens, outdoor and organic systems. Housing in organic rabbit farming is diverse, which can result in different welfare consequences, but the overall welfare impact scores suggest that welfare in organic systems is generally good.
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