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- Title
PRODUCTIVE RESPONSE AND PROGESTERONE CONCENTRATION IN HOLSTEIN HEIFERS SUPPLEMENTED WITH SACCHAROMYCES CEREVISIAE1077 OR SACCHAROMYCES BOULARDII1079.
- Authors
Coronel-Robles, U.; Ortega-Cerrilla, M. E.; Mendoza-Martínez, G. D.; Zetina-Córdoba, P.; Torres-Esqueda, M. T. S.; Munguía-Ameca, G.; Teco-Jácome, M. V.
- Abstract
The objective of this study was to determine the effect of supplementating 10 g/animal/day of Saccharomyces cerevisiae[sup 1077] (SC[sup 1077]) or Saccharomyces boulardii[sup 1079] (SB[sup 1079]) on dry matter intake (DMI), daily weight gain (DWG), feed efficiency (F:G), in vivo digestibility, pH, and rumen ammonia nitrogen (NH[sub 3]-N) concentration in rumen liquor, as well as progesterone concentration (P[sub 4]). Twenty four, six-month old, Holstein heifers were randomly assigned to three treatments (n=8): (T1: Control; T[sub 2]:10 g/animal/day of SC[sup 1077]; T[sub 3]:10 g/animal/day of SB[sup 1079]). Samples of rumen liquor were taken at 60, 120 and 180 d of the experiment to determine pH and ammonia nitrogen. Determination of in vivo digestibility of DM, NDF, ADF and N was carried out 14 days before the of 60, 120, and 180 d periods. Blood samples were taken to measure P[sub 4] concentration. No differences (P > 0.05) were found for DMI, DWG, and F:G from supplementing with S. cerevisiae. Similarly, no differences were reported for rumen pH and rumen NH[sub 3]-N concentration were not affected (P > 0.05), and in vivo digestibility of DM, NDF, ADF and N (P > 0.05). The P[sub 4] concentration was similar (P > 0.05) among the treatments. It is concluded that supplementing Holstein heifers with SC[sup 1077] and SB[sup 1079] did not improve heifers performance nor modified the progesterone concentration.
- Subjects
HOLSTEIN-Friesian cattle; CATTLE feeding &; feeds; SACCHAROMYCES cerevisiae; DRY matter in animal nutrition; PROGESTERONE; DIETARY supplements; PHYSIOLOGY
- Publication
JAPS: Journal of Animal & Plant Sciences, 2016, Vol 26, Issue 1, p17
- ISSN
1018-7081
- Publication type
Article