scholarly journals Beak Trimming Effects on Beak Length and Feed Usage for Growth and Egg Production ,

1992 ◽  
Vol 71 (11) ◽  
pp. 1830-1841 ◽  
Author(s):  
J.V. CRAIG ◽  
J.A. CRAIG ◽  
G.A. MILLIKEN
Keyword(s):  
Egg Production ◽  
Beak Length ◽  
Beak Trimming

Effects of beak trimming on the performance, beak length, behavior, and carcass traits of a local broiler breed reared in battery cages

2020 ◽  
Vol 91 (1) ◽  
Author(s):  
Junying Li ◽  
Hong Chen ◽  
Cong Dai ◽  
Renna Sa ◽  
Zhicheng Wang ◽  
...  
Keyword(s):  
Carcass Traits ◽  
Battery Cages ◽  
Beak Length ◽  
Beak Trimming

scholarly journals Feather Pecking and Cannibalism in Non-Beak-Trimmed Laying Hen Flocks—Farmers’ Perspectives

Animals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 43 ◽  
Author(s):  
Eija Kaukonen ◽  
Anna Valros
Keyword(s):  
Risk Factors ◽  
Drinking Water ◽  
Egg Production ◽  
Laying Hen ◽  
Economic Losses ◽  
Online Questionnaire ◽  
Negative Attitudes ◽  
Feather Pecking ◽  
Intervention Measures ◽  
Beak Trimming

Pecking-related problems are common in intensive egg production, compromising hen welfare, causing farmers economic losses and negatively affecting sustainability. These problems are often controlled by beak trimming, which in Finland is prohibited. An online questionnaire aimed to collect information from farmers about pecking-related problems in Finnish laying hen flocks, important risk factors and the best experiences to prevent the problems. Additionally, the farmers’ attitudes towards beak trimming were examined. We received 35 responses, which represents about 13% of all Finnish laying hen farms with ≥300 laying hens. The majority of respondents stated that a maximum of 5–7% incidence of feather pecking or 1–2% incidence of cannibalism would be tolerable. The majority of respondents (74%) expressed that they would definitely not use beak-trimmed hens. Only two respondents indicated that they would probably use beak-trimmed hens were the practice permitted. Among risk factors, light intensity earned the highest mean (6.3), on a scale from 1 (not important) to 7 (extremely important). Other important problems included those that occurred during rearing, feeding, flock management and problems with drinking water equipment (mean 5.9, each). The most important intervention measures included optimal lighting and feeding, flock management, and removing the pecker and victim. Concluding, Finnish farmers had strong negative attitudes towards beak trimming. The study underlines the importance of flock management, especially lighting and feeding, in preventing pecking problems and indicates that it is possible to incorporate a non-beak-trimming policy into sustainable egg production.

scholarly journals Performance and well-being of laying hens subjected to various beak trimming methods and rearing systems

2020 ◽  
Vol 9 (7) ◽  
pp. e570974509
Author(s):  
Rafael Alan Baggio ◽  
Samuel Jacinto Lunardi ◽  
Manuela Testa ◽  
Jhonatan Pazinatto Boito ◽  
Marcel Manente Boiago ◽  
...  
Keyword(s):  
Egg Production ◽  
Production Efficiency ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Systems ◽  
Well Being ◽  
Feed Conversion ◽  
Production Phase ◽  
Cage Rearing ◽  
Beak Trimming

The aim to evaluate whether different beak trimming methods affected the performance and well-being of laying hens raised in cage and floor systems. During the starter phase, we used a completely randomized design, with three treatments (hot blade beak trimming, infrared beak trimming, and no beak trimming (control)), with four repetitions and in the grower and production phase, we used a factorial arrangement scheme involving two production systems (cage or floor) and three beak management methods (as above). We reared the birds in starter, grower and production phases over a course of 30 weeks. We evaluated productivity, egg quality, behavioral parameters and biochemical variables. In the starter phase, control birds showed higher blood glucose levels (p=0.043). In the grower phase, birds subjected to hot blade beak trimming and control birds showed lower feed intake and better feed conversion. Triglyceride levels were higher in the cage rearing system (p<0.05). In the production phase, the cage rearing system showed higher productivity (p<0.05), mean egg weight (p<0.01), cholesterol levels (p<0.05) and oxygen reactive species levels (p<0.05). In the production phase, the floor system gave rise to a higher frequency of comfort movement behaviors (p<0.01). Hens in cage had improved their performance and had greater egg production efficiency. The choice of the beak method depends on the breeding system.

Effect of age of beak trimming on the production performance of hens

1990 ◽  
Vol 30 (3) ◽  
pp. 349 ◽  
Author(s):  
PC Glatz
Keyword(s):  
Food Intake ◽  
Egg Production ◽  
Production Performance ◽  
Considerable Saving ◽  
Treatment Groups ◽  
Food Efficiency ◽  
Lower Beak ◽  
Body Weights ◽  
Beak Trimming ◽  
Effect Of Age

The effect of age at beak trimming (at hatch, or 10 or 42 days) on the production performance of 2 Australian commercial laying strains (brown egg and a tinted egg layer) was assessed by measuring egg production, food intake, food efficiency, egg weight, egg gradings and body weights of chickens from 19 to 82 weeks of age. Beak trimming removed one half of the upper beak and one third of the lower beak from birds. The tinted egg strain trimmed at hatching was the most efficient of all treatment groups. Layers not trimmed consumed significantly more food, laid fewer eggs and had poorer food efficiency than beak trimmed birds. Early in lay there was no difference in daily egg production with age at beak trimming, but by 50 weeks of age, birds trimmed at hatching or 42 days were producing more eggs than those trimmed at 10 days of age. Chickens trimmed at hatching consumed less food than chickens trimmed at 10 days, and in the late laying phase (67-82 weeks) all beak trimmed groups had significantly lower food intake than control hens. These results show that age of beak trimming influences performance and that considerable saving in food costs for the Australian Poultry Industry can be achieved by trimming half of the top beak and one third of the bottom beak of chickens at hatching.

Source populations in coastal crabs: population parameters affecting egg production

2009 ◽  
Vol 7 ◽  
pp. 31-43 ◽  
Author(s):  
AAV Flores ◽  
CC Gomes ◽  
WF Villano
Keyword(s):  
Egg Production ◽  
Population Parameters ◽  
Source Populations

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

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