The frequency of unilateral milking alters leucine metabolism and amino acid removal by the mammary gland of lactating goats

Journal of Dairy Science

Volumn 93, Issue 1, 2010, Pages 162-169

  Bequette, B J ^a   Douglass, L W ^b  

^a UNIVERSITY OF MARYLAND   (United States)

^b NONE   (United States)

Author keywords

Amino acid; Blood flow; Mammary; Stable isotope

Indexed keywords

AMINO ACID; LEUCINE;

ANIMAL; ARTICLE; BLOOD; DAIRYING; FEMALE; GOAT; LACTATION; METABOLISM; METHODOLOGY; PHYSIOLOGY; TIME; UDDER; VASCULARIZATION;

AMINO ACIDS; ANIMALS; DAIRYING; FEMALE; GOATS; LACTATION; LEUCINE; MAMMARY GLANDS, ANIMAL; TIME FACTORS;

CAPRA HIRCUS;

EID: 77749320311     PISSN: 00220302     EISSN: 15253198     Source Type: Journal    
DOI: 10.3168/jds.2009-2459     Document Type: Article

References (28)

1. Report of the Protein Group of the Agricultural Research Council Working Party on the Nutrient Requirements of Ruminants 1984, Agricultural and Food Research Council, Farnham Royal Commonwealth Agricultural Bureaux, Farnham Royal, UK.
2. Bar-Peled U., Maltz E., Bruckental I., Folman Y., Kali Y., Gacitua H., Lehrer A.R., Knight C.H., Robinson B., Voet H., Tagari H. Relationship between frequent milking or suckling in early lactation and milk production of high producing dairy cows. J. Dairy Sci. 1995, 78:2726-2736.
3. Bauman D.E., Currie W.B. Partitioning of nutrients during pregnancy and lactation: A review of mechanisms involving homeostasis and homeorhesis. J. Dairy Sci. 1980, 63:1514-1529.
4. Bequette B.J., Backwell F.R.C., Crompton L.A. Current concepts of amino acid and protein metabolism in the mammary gland of the lactating ruminant. J. Dairy Sci. 1998, 81:2540-2559.
5. Bequette B.J., Backwell F.R.C., Kyle C.E., Crompton L.A., France J., MacRae J.C. Vascular sources of phenylalanine, tyrosine, lysine, and methionine for casein synthesis in lactating goats. J. Dairy Sci. 1999, 82:362-377.
6. Bequette B.J., Backwell F.R.C., MacRae J.C., Lobley G.E., Crompton L.A., Metcalf J.A., Sutton J.D. Effect of intravenous amino acid infusion on leucine oxidation across the mammary gland of the lactating goat. J. Dairy Sci. 1996, 79:2217-2224.
7. Bequette B.J., Kyle C.E., Crompton L.A., Buchan V., Hanigan H.D. Insulin regulates milk production and mammary gland and hind-leg amino acid fluxes and blood flow in lactating goats. J. Dairy Sci. 2001, 84:241-255.
8. Bequette B.J., Metcalf J.A., Wray-Cahen D., Backwell F.R.C., Sutton J.D., Lomax M.A., MacRae J.C., Lobley G.E. Leucine and protein metabolism in the lactating dairy cow mammary gland: Responses to supplemental dietary crude protein intake. J. Dairy Res. 1996, 63:209-222.
9. Bruce L.A., Atkinson T., Hutchinson J.S.M., Shakespear R.A., MacRae J.C. The measurement of insulin-like growth factor 1 in sheep plasma. J. Endocrinol. 1991, 128:R1-R4.
10. Calder A.G., Smith A. Stable isotope ratio analysis of leucine and ketoisocaproic acid in blood plasma by gas-chromatography/mass spectrometry. Use of tertiary butyldimethylsilyl derivatives. Rapid Commun. Mass Spectrom. 1988, 2:14-16.
11. Connor E.E., Siferd S., Elsasser T.H., Evock-Clover C.M., Van Tassell C.P., Sonstegard T.S., Fernandes V.M., Capuco A.V. Effects of increased milking frequency on gene expression in the bovine mammary gland. BMC Genomics 2008, 9:362-375.
12. Delamaire E., Guinard-Flament J. Increasing milking intervals decreases the mammary blood flow and mammary uptake of nutrients in dairy cows. J. Dairy Sci. 2006, 89:3439-3446.
13. DeSantiago S., Torres N., Suryawan A., Tovar A.R., Hutson S.M. Regulation of branched-chain amino acid metabolism in the lactating rat. J. Nutr. 1998, 128:1165-1171.
14. Fullerton F.M., Fleet I.R., Heap R.B., Hart I.C., Mepham T.B. Cardiovascular responses and mammary substrate uptake in Jersey cows treated with pituitary-derived growth hormone during late lactation. J. Dairy Res. 1989, 56:27-35.
15. Guinard J., Rulquin H. Effect of graded levels of duodenal infusions of casein on mammary uptake in lactating cows. 2. Individual amino acids. J. Dairy Sci. 1994, 77:3304-3315.
16. Heinrikson R.L., Meredith S.C. Amino acid analysis by reverse-phase high-performance liquid chromatography: Precolumn derivatization with phenylisothiocyanate. Anal. Biochem. 1984, 136:65-68.
17. Lapierre H., Doepel L., Milne E., Lobley G.E. Responses in mammary and splanchnic metabolism to altered lysine supply in dairy cows. Animal 2009, 3:360-371.
18. Mabjeesh S.J., Kyle C.E., MacRae J.C., Bequette B.J. Lysine metabolism by the mammary gland of lactating goats at two stages of lactation. J. Dairy Sci. 2000, 83:996-1003.
19. Maltz E., Blatchford D.R., Peaker M. Effects of frequent milking on milk secretion and mammary blood flow in the goat. Q. J. Exp. Physiol. 1984, 69:127-132.
20. Prosser C.G., Davis S.R., Farr V.C., Moore L.G., Gluckman P.D. Effects of close-arterial (external pudic) infusion of insulin-like growth factor-II on milk yield and mammary blood flow in lactating goats. J. Endocrinol. 1994, 142:93-99.
21. 13C-isotope measurements. Biomed. Mass Spectrom. 1984, 11:348-352.
22. SAS OnlineDoc 9.2 2007, SAS Institute, SAS Institute Inc., Cary, NC.
23. Tovar A.R., Becerril E., Hernandez-Pando R., Lopez G., Suryawan A., DeSantiago S., Hutson S.M., Torres N. Localization and expression of BCAT during pregnancy and lactation in the rat mammary gland. Am. J. Physiol. 2001, 280:E480-E488.
24. Wall E.H., McFadden T.B. The milk yield response to frequent milking in early lactation of dairy cows is locally regulated. J. Dairy Sci. 2007, 90:716-720.
25. Wall E.H., McFadden T.B. Use it or lose it: Enhancing milk production efficiency by frequent milking of dairy cows. J. Anim. Sci. 2008, 86(Suppl.):27-36.
26. Wilde C.J., Addey C.V.P., Boddy L.M., Peaker M. Autocrine regulation of milk secretion by a protein in milk. Biochem. J. 1995, 305:51-58.
27. Wilde C.J., Henderson A.J., Knight C.H., Blatchford D.R., Faulkner A., Vernon R.G. Effects of long-term thrice-daily milking on mammary enzyme activity, cell population and milk yield in the goat. J. Anim. Sci. 1987, 64:533-539.
28. Wohlt J.E., Clark J.H., Derrig R.G., Davis C.L. Valine, leucine, and isoleucine metabolism by lactating bovine mammary gland tissue. J. Dairy Sci. 1977, 60:1875-1882.