Mammary growth pattern in goats during pregnancy and lactation

Journal of Dairy Science
R R AndersonM S Salah

Abstract

Nine groups of five dairy goats from four breeds, with each breed represented at least once in each group, were in our experiment to measure mammary gland growth. Groups were virgins, days 90 to 100 pregnancy, 5 days prepartum (145 days pregnancy), 1 or 2 days prepartum, and 1 or 2, 5, 10, 15, and 30 days in lactation. Virgins were 19 mo old while all others had one pregnancy and lactation prior to experiment. Indices of mammary growth included untrimmed and trimmed wet weights of udders, dried fat-free tissue weights, deoxyribonucleic acid and ribonucleic acid contents. Each index was in a regression equation best to describe the pattern of mammary growth. These included linear, quadratic, cubic, and exponential model Y = AebX in which Y was the index of mammary growth and X was the day of pregnancy. Total deoxyribonucleic acid was the best index of mammary growth with a correlation of .95 in the exponential model. The predictive equation for total deoxyribonucleic acid in milligram was Y = 167e.019X on a daily basis, and the rate of growth on a monthly basis was .57. Mammary growth in goats continued into early lactation, peaking at day 5. Ribonucleic acid doubled on the day after parturition, which reflected the rapid increa...Continue Reading

References

May 1, 1979·Journal of Dairy Science·E W Swanson, J I Poffenbarger
Nov 1, 1977·Proceedings of the Society for Experimental Biology and Medicine·J R Harness, R R Anderson
Aug 1, 1976·Journal of Dairy Science·R R Anderson
Jul 1, 1975·Journal of Animal Science·R R Anderson
Jan 1, 1975·Proceedings of the Society for Experimental Biology and Medicine·R R Anderson

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Citations

Jul 19, 1994·Proceedings of the National Academy of Sciences of the United States of America·J S ArcherR D Bremel
Aug 31, 2013·PloS One·Yuanyuan GaoZhonghua Wang
Mar 14, 2001·Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine·M DehnhardU Weiler
Nov 15, 1997·Journal of Dairy Science·J DijkstraD E Beever
Oct 1, 1988·Journal of Dairy Science·L G Sheffield
Oct 1, 1985·Journal of Dairy Science·L G Sheffield, R R Anderson
Jun 1, 1989·Journal of Dairy Science·S P Oliver, L M Sordillo
Mar 27, 2010·Journal of Dairy Science·S SafayiM O Nielsen
Sep 1, 1988·Journal of Dairy Science·S P Oliver, L M Sordillo
Sep 1, 1987·Journal of Dairy Science·M F McGrath
Apr 6, 2000·Journal of Dairy Science·W ManaluA S Satyaningtijas
Jun 1, 1981·Journal of Dairy Science·H A Tucker
May 12, 2005·Journal of Mammary Gland Biology and Neoplasia·A V Capuco, S Ellis
Feb 5, 2010·Journal of Mammary Gland Biology and Neoplasia·Kuljeet SinghKerst Stelwagen
May 1, 2009·The Journal of Nutrition·Mark D HaniganBrian J Bequette
Sep 1, 1987·Journal of Dairy Science·C H Knight, C J Wilde
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Mahmoud AbdelsattarNaifeng Zhang
Jan 1, 1989·The International Journal of Biochemistry·J J SmithR M Akers
Jan 1, 1984·The International Journal of Biochemistry·L M SordilloR Rufner

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