Effects of organic or inorganic cobalt, copper, manganese, and zinc supplementation to late-gestating beef cows on productive and physiological responses of the offspring

Autor: Marques, R. S., Cooke, R. F. [UNESP], Rodrigues, M. C. [UNESP], Cappellozza, B. I., Mills, R. R., Larson, C. K., Moriel, P., Bohnert, D. W.
Přispěvatelé: Eastern Oregon Agricultural Research Center, Universidade Estadual Paulista (Unesp), Umatilla County Extension Office, Zinpro Corporation, Mountain Research Station, Oregon State Univ, Zinpro Corp, N Carolina State Univ
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Web of Science
ISSN: 1816-8000
Popis: Made available in DSpace on 2018-11-26T16:32:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-03-01 Zinpro Corporation (Eden Prairie, MN) Oregon Beef Council Eighty-four multiparous, nonlactating, pregnant Angus x Hereford cows were ranked by pregnancy type (56 AI and 28 natural service), BW, and BCS and allocated to 21 drylot pens at the end of their second trimester of gestation (d 0). Pens were assigned to receive forage-based diets containing 1) sulfate sources of Cu, Co, Mn, and Zn (INR); 2) an organic complexed source of Cu, Mn, Co, and Zn (AAC; Availa 4; Zinpro Corporation, Eden Prairie, MN); or 3) no supplemental Cu, Co, Mn, and Zn (CON). Diets were offered from d 0 until calving and formulated to meet requirements for energy, protein, macrominerals, Se, I, and vitamins. The INR and AAC diets provided the same daily amount of Cu, Co, Mn, and Zn. Cow BW and BCS were recorded and liver samples were collected on d -10 and 2 wk (d 75) before the calving season. Within 3 h after calving, calf BW was recorded, liver samples were collected, and the expelled placenta was retrieved (n = 47 placentas). Calves were weaned on d 283 of the experiment, preconditioned for 45 d (d 283 to 328), transferred to a growing lot on d 328, and moved to a finishing lot on d 440 where they remained until slaughter. Liver Co, Cu, and Zn concentrations on d 75 were greater (P
Databáze: OpenAIRE
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