Polyclonal antibodies as a feed additive for cattle adapted or not adapted to highly fermentable carbohydrate diets

Autor(es):Mostrar menos -

Barros, Tarley A. ^[1] ; Cassiano, Eduardo C. O. ^[1] ; Marino, Carolina T. ^[2] ; Pacheco, Rodrigo D. L. ^[3] ; Ferreira, Fernanda A. ^[1] ; Perna Junior, Flavio ^[1] ; Martins, Mauricio F. ^[1] ; Meyer, Paula M. ^[4] ; Millen, Danilo D. ^[5] ; Arrigoni, Mario D. B. ^[6] ; Rodrigues, Paulo H. M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Anim Nutr & Prod, FMVZ USP, Pirassununga - Brazil

^[2] Embrapa Beef Cattle, BR-79106550 Campo Grande, MS - Brazil

^[3] Mato Grosso State Agr & Extens Serv, Varzea Grande - Brazil

^[4] Brazilian Inst Geog & Stat IBGE, Pirassununga - Brazil

^[5] Sao Paulo State Univ, Coll Technol & Agr Sci, UNESP, Dracena - Brazil

^[6] Sao Paulo State Univ, Dept Anim Breeding & Nutr, FMVZ UNESP, Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF APPLIED ANIMAL RESEARCH; v. 47, n. 1, p. 565-572, JAN 1 2019.
• Citações Web of Science: 0

Resumo

The effect of a polyclonal antibody preparation (PAP) against Streptococcus bovis and Fusobacterium necrophorum on ruminal fermentation and digestion in ruminally cannulated cows was investigated in two 3 x 3 Latin squares in factorial arrangement of treatments 3 x 2 regarding two feed additives (PAP in powder (PAPP) and in liquid (PAPL) presentation) plus control (CON) and two managements of diets (with or without adaptation to highly fermentable carbohydrate diets). Adapted group had greater DMI (p < 0.0001) and DM (p < 0.0001), NDF (p = 0.03) and total carbohydrates (p < 0.0001) apparent digestibility when compared to non-adapted group. PAPL had greater DM (p = 0.02), NDF (p = 0.03) and total carbohydrates apparent digestibility when compared to PAPP or CON. Adapted animals had lower (p < 0.0001) rumen pH when compared to non-adapted animals. Moreover, PAPL group had greater (p = 0.04) rumen pH values when compared to PAPP and CON. PAPL showed potential effect as an additive by increasing apparent digestibility of DM, NDF and total carbohydrates and also for being more efficient to prevent the drop in rumen pH during the peak of fermentation. (AU)

• Processo FAPESP: 08/50805-7 - Avaliacao de um preparado de anticorpos policlonais como aditivo alimentar para bovinos.
• Beneficiário: Carolina Tobias Marino
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado