TITLE

Effect of mammary stimulation on dairy cows and heifers exposed to a lactation induction protocol

AUTHOR(S)
Ramgattie, Reeza; Siew, Narendra; Diptee, Michael; Stoute, Valerie; Knights, Marlon
PUB. DATE
January 2014
SOURCE
Open Journal of Discrete Mathematics;Jan2014, Vol. 4 Issue 1, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Cows (n = 21), dried off for a minimum of 45 days, and nulliparous heifers (n = 26), at ages > 18 months old, were placed on a 12-day Lactation Induction (LI) protocol. One group of ani-mals (including both cows and heifers) received 3-minute mammary gland stimulation, along with the LI protocol. Another group, again including both cows and heifers, received no stimulation. Only the LI protocol consisted of two injections of prostaglandin F2α (PGF2α; 25 mg) 11 days apart, followed by subcutaneous injections of 17ß-estradiol (0.1 mg/kg BW/d) and progesterone (0.25 mg/kg BW/d) beginning 1 day later and continuing for seven (7) days. After this step, all animals received another injection of PGF2α on day 8, followed by intramuscular injections of reserpine (5 mg/d) and dexametha- sone (20 mg/d) on each of days 9 to 12. All ani-mals were milked, beginning on day 13, for a period of 154 days. For all animals, the success rate for lactation induction was 78% ± 6.3% and the mean weekly milk yield was 78.2 kg. Neither value was affected by mammary stimulation. Parity did not significantly impact on the success rate, but it did affect the mean weekly milk yield. Milk yield varied significantly (p < 0.001) with week, peaking during week 9. Peak milk production and persistency were 101.6 kg ± 5.9 kg and 16.9 weeks ± 2.4 weeks respectively, with neither being significantly (α = 0.05 level) affected by stimulation or by parity. However, heifers (at 8.2 weeks ± 1.0 week) tended (p = 0.1) to reach peak milk production earlier than cows (at 10.7 weeks ± 1.3). The milk produced was sold at a net profit per animal treated of $2206.31 TT. Hence, one can conclude that a Lactation Induction protocol can be a useful management tool to increase production and profitability of dairy operations in the tropics.
ACCESSION #
94750595

 

Related Articles

  • THE MECHANISM OF TRANSFER OF IMMUNOGLOBULIN INTO MAMMARY SECRETION OF COWS. Brandon, M.R.; Watson, D.L.; Lascelles, A.K. // Australian Journal of Experimental Biology & Medical Science;Dec1971, Vol. 49 Issue 6, p613 

    Reports on changes in the concentration of immunoglobulins and albumin in serum and mammary secretion in 15 cows and two heifers before and after parturition. Brambell's hypothesis for the selective transfer of protein across epithelial membranes which does not hold for the mammary gland of the...

  • Making the most of colostrum. CHAPLIN, SARAH // Australian Dairy Farmer;Sep/Oct2014, Vol. 29 Issue 5, p109 

    The article presents a reprint of the article "Making the most of colostrum" by Sarah Chaplin, which appeared in "The Dairy Bulletin". Topics covered include the importance of good-quality colostrum for calves, how to get adequate amount of colostrum for calves on-farm, and the important...

  • got colostrum? Rowley, Brian // Joe Weider's Muscle & Fitness;Nov2000, Vol. 61 Issue 11, p160 

    Provides information on the health benefits of colostrum. Nutritional contents of colostrum; Its effects to hormones; Evaluation of some colostrum products.

  • Nipple Riddle. Artis, Elizabeth Goodman // Cosmopolitan;Oct99, Vol. 227 Issue 4, p142 

    Provides information on the possible causes of breast discharge in women.

  • ART: Progesterone is Best Choice for Luteal Phase Support in ART.  // Fertility Weekly;8/8/2005, p3 

    The article focuses on a study related to luteal phase support in Assisted Reproductive Technology, published in the 2005 issue of the journal Current Opinion in Obstetrics and Gynecology. According to researchers in Turkey, luteal phase support with progesterone yields the best results with the...

  • Intramuscular route of progesterone administration increases pregnancy rates during non-downregulated frozen embryo transfer cycles. Haddad, Ghassan; Saguan, Docile A.; Maxwell, Rose; Thomas, Michael A. // Journal of Assisted Reproduction & Genetics;Oct2007, Vol. 24 Issue 10, p467 

    Objective The optimal route of progesterone (P4) administration in embryo transfer (FET) cycles remains to be determined. The objective of this study is to compare the pregnancy outcomes between intramuscular (IM) and vaginal progesterone (PV) administration for endometrial preparation in...

  • The Effect of Early Initiation of Colostrum Feeding on Proliferation of Intestinal Bacteria in Neonates. Ojofeitimi, E. O.; Elegbe, I. A. // Clinical Pediatrics;Jan1982, Vol. 21 Issue 1, p39 

    One hundred eighty normal neonates with an average weight above 2.50 kg and having no feeding difficulties were divided into two groups and randomly assigned to either colostrum or to glucose water feeding regimens during the 3-day stay at the maternity ward. The effects of the feeding regimens...

  • Bioactive from Bovine Colostrum Focus of Twin Cities Chapter.  // Cosmetics & Toiletries;May2006, Vol. 121 Issue 5, p12 

    Reports on the research by Randy Kjelden of Sterling Technology which found that colostrum or bovine milk produced after birth and characterized by high protein and antibody content is a skin health enhancer, which was presented at the March 21, 2006, Twin Cities Society of Cosmetic Chemists...

  • Colostrum is important in calf health. Sjeklocha, Dave // BEEF Exclusive Insight;2/2/2011, p1 

    The article stresses the importance of colostrum, or the first milk of the cow, in the health of the newborn calf. It says the value of colostrum management is often underestimated, while basic practices, including rotating pastures, are very significant for the cowherd's success. It cites the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics