Journals / Erciyes Üniversitesi Veteriner Fakültesi Dergisi / 2006 / Cilt: 3 - Sayı: 2

Force molting methads in laying hens

Yumurta tavuklarında zorlamalı tüy dökümü yöntemleri

Pages
111–115
Publication Date
2022-10-18
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In the second laying cycle, the egg size, shell quality and internal egg quality were improved compared with those in premolting period.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:At the end of the laying cycle, production and quality of egg decline significantly in laying hens.
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Key Findings & Data:Therefore, some producers attempt to induce a molt in the flocks to improve performance and to have economic benefits associated with additional egg laying cycles.
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Conclusion & Impact:In the second laying cycle, the egg size, shell quality and internal egg quality were improved compared with those in premolting period.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

At the end of the laying cycle, production and quality of egg decline significantly in laying hens. Therefore, some producers attempt to induce a molt in the flocks to improve performance and to have economic benefits associated with additional egg laying cycles. There are a number of methods for molting including feed withdrawal, water withdrawal, photoperiodic reduction, feeding with low calcium or low sodium, feeding high dietary zinc or high iodine, feeding with whole-grain barley or oat and feeding with some drugs-hormones. In the second laying cycle, the egg size, shell quality and internal egg quality were improved compared with those in premolting period.

Özet

Yumurtacı tavuklarda yumurtlama döneminin sonunda yumurta verimi ve kalitesi önemli derecede azaldığından bazı üreticiler verimi artırmak ve eldeki sürüden bir dönem daha ekonomik olarak yararlanmak için sürüyü zorlamalı tüy dökümüne sokarlar. Tüy dökümünü sağlayan pek çok yöntem vardır. Bunlar yemin uzaklaştırılması, suyun uzaklaştırılması, ışık süresinin azaltılması, düşük düzeyde kalsiyum yada düşük düzeyde sodyumla, yüksek düzeyde çinko yada iyot ile yemleme, dane arpa veya yulaf kullanılması ve bazı ilaç-hormonların verilmesidir. İkinci yumurtlama döneminde yumurta büyüklüğü, kabuk kalitesi ve iç kalite tüy dökümü öncesindeki döneme göre artmaktadır.

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Cite This Article

ODABAŞILAR, E. E. (2022). Force molting methads in laying hens. Erciyes Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 3 - Sayı: 2, 111–115. https://ajindex.com/articles/504084

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References (19)

  1. Arrington LR, Santa Cruz RA, Harms RH, Wilson HR, 1967. Effects of excess dietary iodine upon pullets and laying hens. J Nutr, 92: 325-330
  2. Baker M, 1981. The relationship between adipose accumulation and reproductive dysfunction in Gallus domesticus. Auburn University, Auburn, AL
  3. Baker M, Brake J, 1981. Relationship of body weight loss during a forced molt of commercial layers to optimum postmolt performance. Highlights Agric Res, 28:16 4. Berry WD, 2003. The physiology of induced molting. Poult Sci, 82: 971-980
  4. Berry WD, Brake J, 1987. Postmolt performance of laying hens molted by high dietary zinc, low dietary sodium and fasting: egg production and egg shell quality. Poult Sci, 66: 218-226
  5. Brake J, 1993. Recent advances in induced molting. Poult Sci, 72: 929-931
  6. Brake J, Carey JB, 1983. Induced molt of commercial layers. Poult Sci Technol Guide No
  7. Raleigh, NC
  8. Brake J, Thaxton P, 1979. Physiological changes in caged layers during a forced molt
  9. Body temperature and selected blood constituents. Poult Sci, 58: 699-706
  10. Brake J, Thaxton P, 1982. Comparative effect of photoperiod modification and/or fasting with a short period without water on physiological and performance parameters associated with molt in SCWL hens. Poult Sci, 61: 1382
  11. Breeding SW, Brake J, Garlich JD, Johnson AL, 1992. Molt induced by dietary zinc in a low-calcium diet. Poult Sci, 71: 168-180
  12. Carter TA, Ward JB, 1981. Limited and full feeding of layers during the non-laying period of a molting cycle. Poult Sci, 60: 1635
  13. Cunningham DL, McCormick CC, 1985. A multicycle comparison of dietary zinc and feed removal molting procedures: Production and income performance. Poult Sci, 64: 253-260
  14. Douglas CR, Harms RH, Wilson HR, 1972. The use of extremely low dietary calcium to alter to production pattern of laying hens. Poult Sci, 51: 2015-2020
  15. Gilbert AB, Blair R, 1975. A comparison of the effects of two low-calcium diets on egg production in the domestic fowl. Br Poult Sci, 16: 547-552
  16. Ibrahim MA, 1998. Induced moulting: Part 1. Poultry International, 37: 28-29
  17. Johnson AL, Brake J, 1992. Zinc-induced molt: Evidence for a direct inhibitory effect on granulosa cell steroidogenesis. Poult Sci, 71: 161-167
  18. Lee K, 1982. Effects of forced molt period on postmolt performance of Leghorn hens. Poult Sci, 61: 1594-1598
  19. Martin GA, Morris TB, Gehle MH, Harwood DG, 1973. Force molting by limiting calcium intake. Poult Sci: 52: