PMID- 21551346
OWN - NLM
STAT- MEDLINE
DCOM- 20120126
LR  - 20131121
IS  - 1525-3163 (Electronic)
IS  - 0021-8812 (Linking)
VI  - 89
IP  - 10
DP  - 2011 Oct
TI  - Effects of adding polyclonal antibody preparations on ruminal fermentation 
      patterns and digestibility of cows fed different energy sources.
PG  - 3228-35
LID - 10.2527/jas.2010-3062 [doi]
AB  - Nine ruminally cannulated cows fed different energy sources were used to evaluate 
      an avian-derived polyclonal antibody preparation (PAP-MV) against the specific 
      ruminal bacteria Streptococcus bovis, Fusobacterium necrophorum, Clostridium 
      aminophilum, Peptostreptococcus anaerobius, and Clostridium sticklandii and 
      monensin (MON) on ruminal fermentation patterns and in vivo digestibility. The 
      experimental design was three 3 x 3 Latin squares distinguished by the main 
      energy source in the diet [dry-ground corn grain (CG), high-moisture corn silage 
      (HMCS), or citrus pulp (CiPu)]. Inside each Latin square, animals received one of 
      the feed additives per period [none (CON), MON, or PAP-MV]. Dry matter intake and 
      ruminal fermentation variables such as pH, total short-chain fatty acids (tSCFA), 
      which included acetate, propionate, and butyrate, as well as lactic acid and 
      NH(3)-N concentration were analyzed in this trial. Total tract DM apparent 
      digestibility and its fractions were estimated using chromic oxide as an external 
      marker. Each experimental period lasted 21 d. Ruminal fluid sampling was carried 
      out on the last day of the period at 0, 2, 4, 6, 8, 10, and 12 h after the 
      morning meal. Ruminal pH was higher (P = 0.006) 4 h postfeeding in MON and PAP-MV 
      groups when compared with CON. Acetate:propionate ratio was greater in PAP-MV 
      compared with MON across sampling times. Polyclonal antibodies did not alter (P > 
      0.05) tSCFA, molar proportion of acetate and butyrate, or lactic acid and NH(3)-N 
      concentration. Ruminal pH was higher (P = 0.01), 4 h postfeeding in CiPu diets 
      compared with CG and HMCS. There was no interaction between feed additive and 
      energy source (P > 0.05) for any of the digestibility coefficients analyzed. 
      Starch digestibility was less (P = 0.008) in PAP-MV when compared with CON and 
      MON. In relation to energy sources, NDF digestibility was greater (P = 0.007) in 
      CG and CiPu vs. the HMCS diet. The digestibility of ADF was greater (P = 0.002) 
      in CiPu diets followed by CG and HMCS. Feeding PAP-MV or monensin altered ruminal 
      fermentation patterns and digestive function in cows; however, those changes were 
      independent of the main energy source of the diet.
FAU - Marino, C T
AU  - Marino CT
AD  - Department of Animal Breeding and Nutrition, Sao Paulo State University 
      (FMVZ-UNESP), Botucatu, Sao Paulo, Brazil.
FAU - Otero, W G
AU  - Otero WG
FAU - Rodrigues, P H M
AU  - Rodrigues PH
FAU - Dicostanzo, A
AU  - Dicostanzo A
FAU - Millen, D D
AU  - Millen DD
FAU - Pacheco, R L D
AU  - Pacheco RL
FAU - Dilorenzo, N
AU  - Dilorenzo N
FAU - Martins, C L
AU  - Martins CL
FAU - Arrigoni, M D B
AU  - Arrigoni MD
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
DEP - 20110506
PL  - United States
TA  - J Anim Sci
JT  - Journal of animal science
JID - 8003002
RN  - 0 (Antibodies)
RN  - 0 (Antibodies, Bacterial)
RN  - 0 (Antiprotozoal Agents)
RN  - 906O0YJ6ZP (Monensin)
SB  - IM
MH  - Animal Feed/*analysis
MH  - Animal Nutritional Physiological Phenomena
MH  - Animals
MH  - Antibodies/*pharmacology
MH  - Antibodies, Bacterial/*pharmacology
MH  - Antiprotozoal Agents/pharmacology
MH  - Cattle
MH  - Diet/veterinary
MH  - Digestion/*drug effects
MH  - Female
MH  - Fermentation/drug effects/physiology
MH  - Monensin/pharmacology
MH  - Rumen/*metabolism
MH  - Time Factors
EDAT- 2011/05/10 06:00
MHDA- 2012/01/27 06:00
CRDT- 2011/05/10 06:00
PHST- 2011/05/10 06:00 [entrez]
PHST- 2011/05/10 06:00 [pubmed]
PHST- 2012/01/27 06:00 [medline]
AID - jas.2010-3062 [pii]
AID - 10.2527/jas.2010-3062 [doi]
PST - ppublish
SO  - J Anim Sci. 2011 Oct;89(10):3228-35. doi: 10.2527/jas.2010-3062. Epub 2011 May 6.