scholarly journals Are Consumers as Constrained as Hens are Confined? Brain Activations and Behavioral Choices after Informational Influence

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Alex J. Francisco ◽  
Amanda S. Bruce ◽  
John M. Crespi ◽  
Jayson L. Lusk ◽  
Brandon McFadden ◽  
...  
Keyword(s):  
Willingness To Pay ◽  
Production System ◽  
Egg Production ◽  
Farm Animals ◽  
Free Range ◽  
Interstate Commerce ◽  
Informational Influence ◽  
Full Effect ◽  
Behavioral Choices ◽  
Open Production

AbstractIn 2008, California passed Proposition 2, specifying confinement space for certain farm animals. Proposition 2 went into full effect January 2015 and has significant implications for egg production in California and possibly even interstate commerce. We examined the influence of promotional videos aired during the campaign on consumers’ willingness-to-pay for eggs produced in a more open production system (i.e., cage-free, free range) and corresponding neurofunctional activations during decisions. Forty-six participants (24 females), aged 18–55 years (

scholarly journals Dynamics of Salmonella Shedding and Welfare of Hens in Free-Range Egg Production Systems

2016 ◽  
Vol 83 (5) ◽  
Author(s):  
Vaibhav C. Gole ◽  
Rebecca Woodhouse ◽  
Charles Caraguel ◽  
Talia Moyle ◽  
Jean-Loup Rault ◽  
...  
Keyword(s):  
Production System ◽  
Salmonella Enterica ◽  
Egg Production ◽  
Production Systems ◽  
Most Probable Number ◽  
Probable Number ◽  
Content Type ◽  
Free Range ◽  
Phage Types ◽  
Positive Correlations

ABSTRACT The current study investigated the effect of environmental stressors (i.e., weather changes) on Salmonella shedding in free-range production systems and the correlations with behavioral and physiological measures (i.e., fecal glucocorticoid metabolites). This involved longitudinal and point-in-time surveys of Salmonella shedding and environmental contamination on four commercial free-range layer farms. The shedding of Salmonella was variable across free-range farms and in different seasons. There was no significant effect of season on the Salmonella prevalence during this investigation. In this study, the combined Salmonella most probable number (MPN) counts in environmental (including feces, egg belt, dust, nest box, and ramp) samples were highest in samples collected during the summer season (4th sampling, performed in February). The predominant serovars isolated during this study were Salmonella enterica serovar Mbandaka and Salmonella enterica serovar Typhimurium phage types 135 and 135a. These two phage types were involved in several egg product-related Salmonella outbreaks in humans. Multilocus variable-number tandem-repeat analysis (MLVA) results indicated that MLVA types detected from human food poisoning cases exhibited MLVA patterns similar to the strains isolated during this study. All Salmonella isolates (n = 209) were tested for 15 different genes involved in adhesion, invasion, and survival of Salmonella spp. We also observed variations for sopA, ironA, and misL. There were no positive correlations between fecal corticosterone metabolite (FCM) and Salmonella prevalence and/or shedding in feces. Also, there were no positive correlations between Salmonella prevalence and Salmonella count (log MPN) and any of the other welfare parameters. IMPORTANCE In this study, the welfare of laying hens and Salmonella shedding were compared over a prolonged period of time in field conditions. This study investigated the long-term shedding of Salmonella serovars in a free-range egg production system. Given that there is increasing demand for free-range eggs, it is essential to understand the risks associated with such a production system.

scholarly journals Effect of Breed and Production System on Physicochemical Characteristics of Meat From Multi-Purpose Hens

2015 ◽  
Vol 15 (1) ◽  
pp. 247-261 ◽  
Author(s):  
Michał Puchała ◽  
Józefa Krawczyk ◽  
Zofia Sokołowicz ◽  
Katarzyna Utnik-Banaś
Keyword(s):  
Fatty Acids ◽  
Production System ◽  
Egg Production ◽  
Muscle Development ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Human Nutrition ◽  
Housing System ◽  
First Year ◽  
Free Range

AbstractThe objective of the study was to determine the effect of breed (A) and free-range production system (B) on quality of meat from hens of two breeds, Greenleg Partridge (Z-11) and Rhode Island Red (R-11), which are under the biodiversity conservation programme in Poland. Subjects were 120 hens of each breed, which were assigned to two treatment groups differing in the housing system: 60 layers were kept on litter without outdoor access (C) and 60 layers were raised on litter with access to free range (FR). At 56 weeks of age, 8 hens were randomly chosen from each group, slaughtered, and subjected to slaughter analysis. It was found from the study that carcasses from 56-week-old multi-purpose hens are characterized by poor muscle development and considerable fat content. After the first year of egg production, the meat of hens was characterized by low tenderness, high water holding capacity, and a fatty acid profile that was desirable from the viewpoint of human nutrition. In the meat of hens that completed their first year of egg production, the profile of fatty acids was beneficial from the standpoint of human nutrition. The free-range production system reduced carcass fatness, enhanced carcass and meat yellowness, and increased the proportion of polyunsaturated fatty acids (both n-6 and n-3) in breast and leg muscles while causing no significant changes in the content of saturated fatty acids. The meat of the native Z-11 breed was found to contain less saturated and more unsaturated fatty acids compared to the meat of R-11 hens. There was no statistically significant effect of the production system on the sensory evaluation of cooked meat and broth.

scholarly journals Multi-criteria decision-making model in the strategic planning of table egg production in the Republic of Croatia

2018 ◽  
Vol 16 (2) ◽  
pp. e0105
Author(s):  
Ana Crnčan ◽  
Zoran Škrtić ◽  
Jelena Kristić ◽  
Igor Kralik ◽  
David Kranjac ◽  
...  
Keyword(s):  
Rural Areas ◽  
Production System ◽  
Egg Production ◽  
Laying Hens ◽  
The European Union ◽  
Analytic Hierarchy ◽  
Free Range ◽  
Self Employment ◽  
Multi Criteria Analysis ◽  
The Republic

Until 2012, egg production in Croatia was mostly in cages, which was not in accordance with the European Union standards on the welfare of laying hens. Therefore, producers of table eggs could not continue their current practice and had to use those systems permitted in the EU member countries, such as organic, free-range, indoor or enriched cages. The aim of this study was to analyse and evaluate various systems of table-egg production using a method of multi-criteria analysis called the Analytic Hierarchy Process (AHP). Thus, the aim was to determine scientifically which production system was the favoured option for the Croatian poultry sector. According to the results, production of eggs using an indoor system for housing hens was the best option (priority 0.317). This was followed by a free-range system (priority 0.242). The third-ranked alternative egg production system was in cages (priority 0.237), while the fourth and the least acceptable alternative refers to egg production according to organic principles (priority 0.202). Based on the results of the multi-criteria analysis and respecting the worldwide trends that reflect changes in consumers’ habits and their concerns for food safety and quality, as well as their preference for local markets and local products, it is recommended that eggs be produced in an indoor system of keeping laying hens. In this sense, egg production on small farms provides the possibility of self-employment and creation of additional income to contribute towards overall economic and social development of rural areas.

Chasing Salmonella Typhimurium in free range egg production system

2016 ◽  
Vol 192 ◽  
pp. 67-72 ◽  
Author(s):  
Kapil Chousalkar ◽  
Vaibhav Gole ◽  
Charles Caraguel ◽  
Jean-Loup Rault
Keyword(s):  
Salmonella Typhimurium ◽  
Production System ◽  
Egg Production ◽  
Free Range

scholarly journals Effects of production system and feeding regimen on carcass and meat quality traits of Naked Neck chicken

2021 ◽  
Vol 51 (2) ◽  
pp. 250-261
Author(s):  
E. Bughio ◽  
J. Hussain ◽  
A. Mahmud ◽  
A. Khalique
Keyword(s):  
Meat Quality ◽  
Production System ◽  
Production Systems ◽  
Liver Weight ◽  
Kitchen Waste ◽  
Naked Neck ◽  
Commercial Diet ◽  
Free Range ◽  
Commercial Feed ◽  
Feeding Regimen

To evaluate the effect of a production system and feeding regimen on meat quality attributes of Naked Neck chickens, a total of 150 cockerels at 18 weeks old (1625 ± 70 g) were collected from 10 treatment groups with five replicates of three birds. The factorial arrangement of treatments consisted of two production systems (intensive and free-range) and five nutritional regimens, namely 100% commercial feed; 75% commercial feed plus 25% kitchen waste; 50% commercial feed plus 50% kitchen waste; 25% commercial feed plus 75% kitchen waste; and 100% kitchen waste. Carcass traits, meat quality, and meat organoleptic were found to differ significantly among production systems, feeding regimens, and their interaction. Higher liver weight was observed in birds reared under an intensive system. Higher gizzard weight was noted in birds fed with 100% kitchen waste, whereas lower gizzard weight was observed in birds fed the commercial diet. The meat from cockerels fed with 75% kitchen waste was most yellow, whereas the meat from the birds fed with 100% kitchen waste was least yellow. At two hours after slaughter, pH of the meat was highest in birds fed 50% kitchen waste and lowest in birds fed 100% kitchen waste. The interaction of production system and feeding regimen was significant for overall acceptability score. In conclusion, Naked Neck chickens performed equally well under intensive and free-range systems, irrespective of the level of kitchen waste that they were fed.

Effect of index selection in GGP lines on cocoon traits of silkworm commercial hybrids

2007 ◽  
Vol 2007 ◽  
pp. 68-68
Author(s):  
Mani Ghanipour ◽  
Seyed Ziaeddin Mirhosseini ◽  
Abdol Ahad Shadparvar ◽  
Alireza Seidavi ◽  
Alireza Bizhannia
Keyword(s):  
Production System ◽  
Egg Production ◽  
Selection Index ◽  
Index Selection ◽  
Genetic Trend ◽  
Index Method ◽  
Chinese Origin ◽  
Maximum Improvement ◽  
Parent Stock ◽  
High Selection

The general aim of selection in animal breeding is to acquire new generation of animals, which under future economic conditions of production system are more efficient than the present generation. In selection index method, genetic trend of important traits is directed based on their weights in economic efficiency of production system to acquire maximum improvement in economic merit (Mirhosseini et al., 2005). Silkworm commercial egg is produced by crossing between Japanese and Chinese origin parent stocks. There are three steps in the cycle of egg production including GGP (great grand parent), GP (grand parent) and P (parent stock). Breeding programs along with high selection pressure are used only in GGP lines which are typically much smaller in size than other stocks. The objective of this study was to evaluate effect of six generations of index selection in the GGP lines on performance of commercial silkworm hybrids.

scholarly journals Effects of 5-Aminolevulinic Acid as a Supplement on Animal Performance, Iron Status, and Immune Response in Farm Animals: A Review

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1352
Author(s):  
Amin Omar Hendawy ◽  
Mostafa Sayed Khattab ◽  
Satoshi Sugimura ◽  
Kan Sato
Keyword(s):  
Immune Response ◽  
Egg Production ◽  
Aminolevulinic Acid ◽  
Iron Status ◽  
White Blood Cells ◽  
Feed Additives ◽  
Farm Animals ◽  
Clear Understanding ◽  
Standard Procedures ◽  
Cell Mediated Immune Response

Efforts directed toward enhancing animals’ productivity are focused on evaluating the effects of non-traditional feed additives that are safer than antibiotics, which have been banned because of their health hazards. Many studies used an amino acid that contributes to heme biosynthesis, known as 5-aminolevulinic acid (5-ALA), to promote the productivity of farm animals. However, these studies demonstrate inconsistent results. In order to develop a clear understanding of the effects of 5-ALA in farm animals, we comprehensively searched PubMed and Web of Science for studies evaluating 5-ALA effects on the performance, iron status, and immune response of different farm animals. The search retrieved 1369 publications, out of which 16 trials were relevant. The 5-ALA-relevant data and methodological attributes of these trials were extracted/evaluated by two independent researchers, based on a set of defined criteria. Samples were comprised of pigs, chickens, and dairy cows. The 5-ALA doses ranged from 2 mg to 1 g/kg of feed, and treatment duration ranged from 10 to 142 days. Overall, 5-ALA improved iron status in most studies and increased white blood cells count in 3 out of 10 studies, in addition to improving animals’ cell-mediated immune response following immune stimulation with lipopolysaccharide. Inconsistent findings were reported for growth performance and egg production; however, a combination of 10 mg/kg of 5-ALA with 500 mg/kg of vitamin C promoted the highest egg production. In addition, 5-ALA improved milk protein concentration. In conclusion, 5-ALA can enhance farm animals’ iron status and immune response; however, the heterogeneity of the reviewed studies limits the generalizability of the findings. Standard procedures and outcome measures are needed to confirm the benefits of 5-ALA. Attention should also be paid to any adverse effects.

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

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 725
Author(s):  
Louwrens Christiaan Hoffman ◽  
Bianca Claasen ◽  
Daniël André Van der Merwe ◽  
Schalk Willem Petrus Cloete ◽  
Jasper Johannes Erasmus Cloete
Keyword(s):  
Production System ◽  
Sensory Quality ◽  
Production Systems ◽  
Quality Characteristics ◽  
Free Range ◽  
Ram Lambs ◽  
Feedlot Lambs ◽  
Pelleted Diet ◽  
Group 2 ◽  
Group 1

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 represented in each group. The lambs were fed for five (slaughter group 1) or six (slaughter group 2) weeks. Feedlot lambs were fed a commercial pelleted diet while free-range lambs utilized natural shrub pastures. Samples of the Longissimus thoracis muscle were used for sensory evaluation. Feedlot lambs produced meat that was juicier and more tender than meat from free-range lambs. Initial juiciness was also higher in the meat from the feedlot lambs. No aroma or flavour differences were observed. The meat from the free-range ram lambs (slaughter group 1) was the least tender, whereas the lamb flavour was also compromised in the free-range ram lambs. Free-range meat may not necessarily be distinguished from feedlot meat as far as aroma and flavour are concerned.

scholarly journals Husbandry Conditions and Welfare Outcomes in Organic Egg Production in Eight European Countries

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2102
Author(s):  
Lisa Jung ◽  
Christine Brenninkmeyer ◽  
Knut Niebuhr ◽  
Monique Bestman ◽  
Frank A. M. Tuyttens ◽  
...  
Keyword(s):  
Egg Production ◽  
Preventive Measure ◽  
European Countries ◽  
European Research ◽  
Light Conditions ◽  
Welfare Indicators ◽  
Free Range ◽  
Protein Levels ◽  
Worm Infestation ◽  
Bone Damage

In the European research project HealthyHens, welfare indicators as well as husbandry and management conditions were recorded in 107 organic laying hen farms in eight countries. Farms were visited at peak and end of lay. Egg production was on average comparable to breeder specifications. A mean mortality of 5.7% and mean prevalences of footpad lesions of 30.5%, keel bone damage of 44.5%, 57.3% of flocks with on average >200 Ascarid eggs per gram faeces and 28.2% of flocks with >100 mites/trap were recorded. A large variation between flocks indicated options for improvement. Based on the results, the following measures can be recommended: (i) decreasing mite and worm infestation and (ii) providing an attractive covered veranda, because of their association with decreased mortality; (iii) maximising access to the free range, because of its relation to decreased A. galli infection and less injurious pecking; (iv) feeding sufficient protein levels and (v) providing adequate litter as preventive measure against feather pecking and cannibalism; (vi) ensuring that the birds have sufficient weight and (vii) preventing accidents by adequate hen house facilities and light conditions to reduce keel bone damage. These primarily management-based measures have the potential to improve bird welfare both in terms of behavioural and health aspects.

scholarly journals COMBINATION OF USING COW FECES POWDER AND PROBIOTIC IN FEED FOR LAYER NATIVE CHICKEN

2016 ◽  
Vol 20 (2) ◽  
pp. 47
Author(s):  
Suprio Guntoro ◽  
Anak Agung Ngurah Badung Sarmuda Dinata ◽  
I Wayan Sudarma
Keyword(s):  
Drinking Water ◽  
Egg Production ◽  
Food Prices ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Free Range ◽  
Native Chicken ◽  
Physical Composition ◽  
Chicken Farm

The development of free-range chicken farm is constrained by expensive food prices. On the other hand,feses of cattle had potential use as a source of feed. This study was conducted to determine the response ofcow feses and probiotics administration in the diet of laying range chicken. The study was conducted over 6months using 240 free-range chickens aged 8 months. Research was arranged in a completely randomized designwith 8 treatments and 5 replications. The treatment given were ration in accordance with the farmers formulacomprising: concentrate: 25%, corn 40% and rice bran 35% (P0) and ration as P0, with the substitution of ricebran with fermented cow feses each treatment with level 10 % (P1), 15% (P2) and 20% (P3) and ration as atP0, P1, P2 and P3 that received additional probiotic (Bio L) 1 cc / L of drinking water (P4, P5, P6 and P7). Theparameters were observed are: egg production (hen day), egg weight, feed intake, FCR (Feed Conversion Ratio)mortality and physical composition of eggs. The results showed that the diet which containing fermented cowfeses 20% did not decreased egg production and feed efficiency. The combination of fermented cow feses at thelevel of 20% with a probiotic (Bio L) 1 cc / L of drinking water showed that egg production  increased althoughit is not significant and reduce the number of FCR (Feed Conversion Ratio). In conclusion the use of fermentedcow feses up to the level of 20% in the diet both with and without the administration of probiotics, has no effecton physical composition of eggs.

Sign in / Sign up

Export Citation Format

Share Document