Journals / Turkish Journal of Veterinary and Animal Sciences / 2005 / Cilt: 29 - Sayı: 2

Laktasyon döngüsünün değiştirilmesi: 60 gün kuru dönem çok fazla mı?

Altering the lactation cycle: Is a 60-Day dry period too tong?

Pages
197–205
Publication Date
2022-11-05
DOI
—
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AI Summary & Key Takeaways

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

This review will try to address both observational and experimental data to give an understanding about the topic.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The most critical problem for the evaluation of different dry period lengths is the relationship between days dry and subsequent milk production.
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Key Findings & Data:Indeed there are only a limited number of studies, experimental and observational, that have been conducted to establish the association between minimum dry period and maximum milk yield (MY) in the lactation that follows the dry period.
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Conclusion & Impact:This review will try to address both observational and experimental data to give an understanding about the topic.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The most critical problem for the evaluation of different dry period lengths is the relationship between days dry and subsequent milk production. It is assumed that when a cow is dried off, the loss in the current lactation will be compensated for by greater milk production during the following lactation. However, the process of parturition and initiation of lactation are extremely important events and they are associated with many problems that may result in removal of the individual cow from the herd or in greatly reduced milk production, especially early in the lactation. Therefore, identification of the shortest possible dry period that would allow maximum milk production after parturition is crucial. Indeed there are only a limited number of studies, experimental and observational, that have been conducted to establish the association between minimum dry period and maximum milk yield (MY) in the lactation that follows the dry period. This review will try to address both observational and experimental data to give an understanding about the topic.

Özet

Farklı kuru dönem sürelerinin değerlendirilmesinde en önemli problem, kuru ve sağım dönemlerindeki süt verimleri arasındaki ilişkidir. Kuruya çıkarılan bir süt ineğinin kaybettiği süt üretiminin doğum sonrası daha yüksek verim alınması neticesinde karşılanabileceği kabul edilmektedir. Buna rağmen doğum ve laktasyonun başlaması çok kritik olaylardır ve önemli problemlere yol açabilir. Bu problemler süt ineğinin sürüden çıkarılmasına veya özellikle laktasyonun başlaması sırasında süt veriminde büyük kayıplara yol açabilmektedir. Bu yüzden en kısa süreli kuru dönem süresinin saptanması çok önemlidir. Aslında kuru dönem süresi ve süt üretimi arasındaki ilişkiyi inceleyen çok az sayıda çalışma yapılmıştır. Bu derleme kapsamında bu konu ile ilgili gerek gözlemsel gerekse deneysel çalışmalar hakkında bilgi verilmesi amaçlanmıştır.

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Cite This Article

GÜLAY, M. Ş. (2022). Laktasyon döngüsünün değiştirilmesi: 60 gün kuru dönem çok fazla mı?. Turkish Journal of Veterinary and Animal Sciences, Cilt: 29 - Sayı: 2, 197–205. https://ajindex.com/articles/615461

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References (14)

  1. Lascelles, A.K., Lee, C.S.: Involution of the mammary gland. In: Lactation, Eds. Larson, B. L. New York and London: Academic Press. 1978; Vol. 4: 115-134
  2. Coppock, C.E., Everett.R.W., Natzke, R.P., Ainslie, H.R.: Effect of dry period length on Holstein milk production and selected disorders at parturition. J. Dairy Sci., 1974; 57: 712-718
  3. Akers, R.M., Nickerson, S.C.: Effects of prepartum blockade of microtubule formation on milk production and biochemical differentiation of the mammary epithelium of heifers. Int. J. Biochem., 1983; 15: 771-775
  4. Smith, K.L., Todhunter, D.L.: The physiology of mammary glands during the dry period and the relationship to infections. In: Proc. Natl. Mastitis Counc; Louisville, KY. Nat'l Mastitis Counc. Inc. Arlington, VA. 1982; 87-93
  5. Hart, I.C., Morant, S.V.: Roles of prolactin, growth hormone, insulin and thyroxine in steroid-induced lactation in goats. J. Endocrinol., 1980; 84: 343-351
  6. Nickerson, S.C., Akers, R.M.: Biochemical and ultrastructural aspects of milk synthesis and secretion. Int. J. Biochem., 1984; 16:855-865
  7. Richards, R.C., Benson, G.K.: Structural changes associated with inhibition of involution of the mammary gland in the albino rat. J. Endocrinol., 1971; 51: 137-143
  8. Marti, A., Graber, H., Lazar, HL, Ritter, P.M., Baltzer, A., Srinivasan, A., Jaggi, R.: Caspases: decoders of apoptotic signals during mammary involution. Caspase activation during involution. Adv. Exp. Med. Biol., 2000; 480: 195-201
  9. Liu, X.W., Robinson, G.W., Hennighausen, L: Activation of STATa and STATb by tyrosine phosphorylation is tightly linked to mammary gland differentiation. Mol. Endocrinol., 1996; 10: 1496-1506
  10. Walker, N.I., Bennet, R.E., Kerr, J.R.: Cell death by apoptosis during involution of the lactating breast in mice and rats. Am. J. Anat, 1989; 185: 19-32
  11. Nagase, H., Woessner, J.F.: Matrix Metalloproteinases. J. Biol. Chem. 1999; 31: 21491-21494
  12. Pullan, S., Wilson, J., Metcalfe, A., Edwards, G.M., Tilly, J., Hickman, J.A., Dive, C, Streuli, J.H.: Requirement of basement membrane for the suppression of programmed cell death in mammary epithelium. J. Cell Sci., 1996; 3: 631-642
  13. Hoist, B.D., Hurley, W.L., Nelson, D.R.: Involution of bovine mammary gland: Histological and ultrastructural changes. J. Dairy Sci., 1987; 70: 935-944
  14. Sordillo, L.M., Nickerson, S.C.: Morphologic changes in the bovine mammary gland during involution and lactogenesis. Am. J. Vet. Res., 1988:49: 1112-