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Immunohistochemical localization and morphometry of somatotrophs and lactotrophs in protein, probiotic and symbiotic supplemented molted layers

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Two-hundred Single Comb White Leg-Horn spent hens at the age of 70 weeks were purchased from a commercial layer farm. The birds were shifted to the Poultry Research Station, Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan. High dietary zinc (3g/kg feed/day) was used to induce molting in all the birds after one week of acclimatization. Thereafter, birds were divided in groups of 50 birds each, with the following treatments: G1 [control; crude protein (CP)16%, no other supplement], G2 (CP18%, no other supplement), G3 (CP16%, Symbiotic, 85 mg/L drinking water) and G4 (CP16%, Probiotic, 85mg/L in drinking water). Fifteen birds were slaughtered at 5% of peak of production each to collect their pituitary glands. The better egg production was seen in all the supplemented groups as compared to the control. Especially an earlier post molt production recovery and delayed decline was seen in the G2 as compared to all other groups. The immunohistochemistry of the pituitary gland reveals the decrease (P≤0.01) in the cell and nucleus size as well as area of somatotrophs in G2 and G4 as compared to G1. The cell and nucleus size as well as area of lactotrophs decreased (P≤0.01) in G2, G3 and G4 as compared to G1. The better and earlier post molt production in G2 highlights the potential role of protein supplementation in connection with the decreased lactotroph size and area in molted birds.

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Haseeb Anwar, Ghulam Hussain, Azhar Rasul, Syed Muhammad Ali Shah, Syed Ali Raza Naqvi, Shazia Anwer Bukhari, Muhammad Umar Sohail, Muhammad Naeem Faisal, Imtiaz Mustafa, Naveed Munir, Jaweria Nisar, Arslaan Shaukat, Humaira Muzaffer (2021)
Potential role of probiotic species in ameliorating oxidative stress, effect on liver profile and hormones in male albino rat model. European Journal of Inflammation, 19.
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Haseeb Anwar, Zia ur Rahman, Musadiq Idris (2018)
Dynamics of endocrine markers and liver enzymes in laying hens after protein and probiotics supplementation in the post-moult phase. Journal of Applied Animal Research, 46(1), 977.
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H. Anwar, Z.U. Rahman, I. Javed, F. Muhammad (2015)
Immune Potentiating role of Protein, Probiotic and Symbiotic Supplementation in Moulted White Leghorn Hens. Avian Biology Research, 8(1), 25.
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Haseeb Anwar, Zia Ur Rahman (2016)
Efficacy of protein, symbiotic and probiotic supplementation on production performance and egg quality characteristics in molted layers. Tropical Animal Health and Production, 48(7), 1361.
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H. Anwar, A. Iftikhar, M.U. Sohail, G. Hussain, M.N. Faisal, J.A. Khan, S.A. Bukhari, Z. Iqbal (2016)
Efficacy of various post-moult feed supplementations in poultry: an empirical review. World's Poultry Science Journal, 72(3), 619.
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H. Anwar, Z. U. Rahman (2016)
Dynamics of anterior pituitary immunoreactive gonadotrophs in moulted hens supplemented with protein, symbiotic and probiotics. Journal of Animal Physiology and Animal Nutrition, 100(3), 448.

Supporting Agencies

Higher Education Commission of Pakistan
H. Anwar, Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan.

PhD Scholar,

Department of Physiology and Pharmacology

Z.U. Rahman, Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan.

Professor,

Department of Physiology and Pharmacology

F. Muhammad, University of Agriculture,

Assistant Professor

Department of Physiology and Pharmacology

I. Javed, University of Agriculture

Chairman/Professor

Department of Physiology and Pharmacology

How to Cite



Immunohistochemical localization and morphometry of somatotrophs and lactotrophs in protein, probiotic and symbiotic supplemented molted layers. (2012). European Journal of Histochemistry, 56(3), e28. https://doi.org/10.4081/ejh.2012.e28