Author: Mark A. McGuirePublisher:
ISBN:
Category :
Languages : en
Pages : 392
Book Description
The Insulin-like Growth Factors and Insulin-like Growth Factor Binding Proteins in Lactating Cows
Author: Mark A. McGuireExamination of the Insulin-like Growth Factor System with the Onset of Lactation in Dairy Cows
Author: Nthabisheng SegoaleConcentrations of Insulin-like Growth Factor-I (IGF-I) and Insulin-like Growth Factor Binding Protein-3 (IGFBP-3) in the Plasma and Milk of Pasture-fed Dairy Cows in Early Lactation
Author: Frederick Yeboah ObesePublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 554
Book Description
Alterations in Insulin-like Growth Factor I and Splanchnic Metabolism of Lactating Cows Treated with Somatotropin
Author: Wendie Smith CohickPublisher:
ISBN:
Category : Bovine somatotropin
Languages : en
Pages : 354
Book Description
Modulation of Growth and Lactation in Cattle by Insulin-like Growth Factors and Binding Proteins
Author: Dale Elton BaumanPublisher:
ISBN:
Category : Cattle
Languages : en
Pages : 80
Book Description
Regulation of the Growth Hormone Receptor, Insulin-like Growth Factor (IGF) I and IGF Binding Protein 2 in Reproductive Tissues of Dairy Cattle During Lactation and Associated Effects on Fertility
Author: Michelle Lynn Bode-RhoadsPublisher:
ISBN:
Category : Somatomedin
Languages : en
Pages : 376
Book Description
The components of the growth hormone (GH)/insulin-like growth factor (IGF) system play critical reproductive and metabolic roles in dairy cattle. In liver, GH receptor (GHR) and IGF-I are dynamically regulated by lactation and energy balance. Less is known about the regulation of GHR and IGF-I mRNA in reproductive tissues. The objective of these studies was to measure the expression of total GHR (tGHR), IGF-I and IGF binding protein (IGFBP) 2 mRNA in reproductive tissues during several stages of lactation and around the time of artificial insemination. Changes in gene expression were then evaluated for potential effects on fertility. The expression of tGHR, IGF-I and IGFBP-2 was measured in uterine, luteal, follicular and hepatic tissue three times during the early postpartum period. Expression of tGHR and IGFBP-2 mRNA in the reproductive tissues did not change during early lactation. Luteal and follicular expression of IGF-I changed in an inverse manner from the second sample collection to the third (luteal expression decreased and follicular expression increased). Further research is needed to elucidate the implications these changes have for fertility in dairy cattle. The expression of tGHR, IGF-I and IGFBP-2 was also measured in uterine and hepatic tissue at several stages of lactation around the time of insemination. Uterine tGHR mRNA, uterine IGF-I mRNA and plasma IGF-I concentrations increased at estrus. The timing of these changes suggests that uterine IGF-I does not directly affect early embryonic development, but may enhance the uterine environment for early embryonic development. The cows that became pregnant had higher liver tGHR and IGFBP-2 mRNA concentrations. The cows that became pregnant may have been metabolically distinct from the cows that did not become pregnant, resulting in different levels of hepatic gene expression and providing a reproductive advantage.
Hormonal and Nutritional Regulation of Insulin-like Growth Factor-I and Binding Protein Expression
Author: Jesse Cheng-lin ChowPublisher:
ISBN:
Category :
Languages : en
Pages : 204
Book Description
Bioactive Components of Milk
Author: Zsuzsanna BoszePublisher: Springer Science & Business Media
ISBN: 0387740872
Category : Technology & Engineering
Languages : en
Pages : 492
Book Description
Dairy foods have huge potential concerning functional foods. Therefore, there is a tremendous amount of interest in value-added milk products and the identification of components in food which have health benefits. This book provides an overview of these derived components and their diverse activities including: the stimulation of beneficial microflora, alerting the immune system to the presence of potential pathogens and allergens, binding and eliminating toxins, etc.
Evaluation of Serum Insulin-like Growth Factor Binding Proteins and the Insulin-like Growth Factor Binding Protein-2 Locus for Potential Associations with Growth, Carcass Merit and Meat Quality in Beef Cattle
Author: Melvin PaganPublisher:
ISBN:
Category : Aberdeen-Angus cattle
Languages : en
Pages : 262
Book Description
Intercellular Signalling in the Mammary Gland
Author: C.H. KnightPublisher: Springer Science & Business Media
ISBN: 146151973X
Category : Science
Languages : en
Pages : 296
Book Description
All being done, we went to Mrs Shipmans, who is a great butter-woman; and I did see there the most of milke and cream, and the cleanest, that I ever saw in my life (29 May 1661). Among others, Sir Wm. Petty did tell me that in good earnest, he hath in his will left such parts of his estate to him that could invent such and such things -as among others, that could discover truly the way of milk coming into the breasts of a woman ... (22 March 1665). My wife tells me that she hears that my poor aunt James hath had her breast cut off here in tow- her breast having long been out of order (5 May 1665). From the Diary of Samuel Pepys, published as The Shorter Pepys (edited by R. Latham), Penguin Books (1987) The long-standing ultimate importance of research on the mammary gland is illustrated by the importance attached to cows' milk for human consumption, to human lactation and to breast cancer by Samuel Pepys and his contemporaries in the middle of the 17th century. Research has tended to develop in isolation in these three areas of continuing contemporary importance largely because in most countries, the underlying science of agricultural productivity is funded separately from the underlying science of human health and welfare.