Effect of ruminant grade Menhaden fish meal on reproductive and productive performance of lactating dairy cows

Journal of Dairy Science
J M BurkeW W Thatcher

Abstract

Menhaden fish meal, fed at 0.7 kg/d [2.7% of dietary dry matter (DM)], replaced blood meal and meat and bone meal (2.0% of dietary DM) in the diet fed at dairy A (n = 341) and replaced blood, meat and bone, and corn gluten meals (3.2% of dietary DM) in the diet fed at dairy B (n = 300). Cows consumed the experimental total mixed diets from approximately 24 to 109 d postpartum. Cows were synchronized for estrus using injections of GnRH agonist at 51 d postpartum. PGF2 alpha 7 d later, and artificial insemination at detected estrus. Resynchronization occurred using the same program if estrus was not detected. Diet failed to alter reproductive responses at synchronized artificial insemination. Pregnancy rate at 120 d postpartum was not altered by diet at dairy A (65.4% vs. 60.2%) but was improved by dietary fish meal at dairy B (31.9% vs. 41.3%; interaction of dairy and diet). The dynamics of corpus luteum regression were altered in cows fed fish meal at dairy B. Dietary fish meal did not influence milk production of cows at dairy A but increased production of milk (2.3 kg/d) and protein (0.1 kg/d) of second parity cows at dairy B. When dietary fish meal was fed to cows at dairy B, production of milk fat and 4% FCM was higher for ...Continue Reading

References

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Citations

Nov 1, 2016·Reproduction : the Official Journal of the Society for the Study of Fertility·Reza SalehiDivakar J Ambrose
Apr 4, 2002·Reproduction in Domestic Animals = Zuchthygiene·A RochaJ Carvalheira
Jul 15, 2006·Journal of Dairy Science·D J AmbroseP Zalkovic
Aug 27, 2003·Journal of Dairy Science·M LessardH V Petit
Apr 6, 2000·Journal of Dairy Science·P MelendezJ Hernandez
May 5, 1998·Journal of Dairy Science·C R StaplesW W Thatcher
Jul 25, 2008·Reproduction in Domestic Animals = Zuchthygiene·J E P SantosF T Silvestre
Sep 10, 2003·Journal of the American Veterinary Medical Association·Pedro MelendezWilliam W Thatcher
Apr 20, 2007·Biology of Reproduction·D Claire WathesR John Aitken
Apr 19, 2018·Biology of Reproduction·Katrin GillerSusanne E Ulbrich
Oct 18, 2019·Animals : an Open Access Journal From MDPI·María RodríguezCesare Castellini
Jan 1, 2018·Reproduction, Fertility, and Development·Lex Bach
Jan 5, 2002·Theriogenology·W W ThatcherJ K Pru
Jun 16, 2005·The Veterinary Clinics of North America. Food Animal Practice·James D Ferguson

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