The Authors investigated to correlate metabolic efficiency to reproductive performances by the administration of functional feed in high-producing dairy cattle. The trial want to study, also, the capability of laboratory diagnostic in evaluation and estimation of the reproductive capacities to select subjects to submit to reproductive praxis. Functional feed contains vitamins E, A, D3, organic-selenium, polyinsaturated fatty acids (PUFA) and a prebiotic by fermented cereals. Effects of PUFA administered were particularly investigated in lipoprotein fractions composition, in blood. Optimal relationship among LDL-cholesterol, total cholesterol and progesteron was related to best reproductive performances: in this trial. Authors can confirm this on the basis of livestock performances. Study realized during the most worm period of the year when mean daily temperature go up to 30°C. Metabolic parameters considered are linked to energetic, mineral and endocrine metabolisms. Determination were realized in blood-samples before, during, after the administration of NAT3. Bovines were fed with different addition of NAT3 (320-360 g/subj/die) for 4 months. Reproductive indices studied were: open-days and number of services per conception. Trend analysis of fertility indices demonstrated that blood levels of progesterone and blood antioxidant capability are strictly correlated and correlated also to reproductive performances. Efficacy of treatment is demonstrated by the trend of the fertility indices in the post treatment period during which indices return progressively to the pre treatment values in about 60 days: this period correspond to the lipid tissue turnover time. During these days a temporary build-up of PUFA and liposoluble vitamins was observed. Blood progesterone levels were higher (2.2 times) in correspondence of the 21st day post partum in treated subjects respect to control ( 0.18 vs 0.44 ng/l). Reproductive indexes recorded stressed that open-days varied from to . Number of services per conception was reduced from 121 to 95 at 60th day of treatment. In the next four months the value of the index settled between 90-95 days. Data obtained in this study show that administration of PUFA, antioxidants and probiotics administred in dairy cows can remodel metabolisms correlated to fertility such as progesterone, prostaglandins and prostacyclins synthesis. These evidences are stressed by trends recorded in the herd concerning values of open-days and the number of services per conception.

METABOLIC EFFECTS AND REPRODUCTIVE PERFORMANCES IN DAIRY COWS TREATED WITH A FUNCTIONAL FEED (NAT®W3) / Gabaldo, G.; Gabaldo, M.; Sabato, G.; Fusari, Antonella; Ubaldi, Antonio. - XXVI:(2010), pp. 331-332. (Intervento presentato al convegno XXVI WORLD BUIATRICS CONGRESS tenutosi a Santiago, Chile nel November, 14-18, 2010).

METABOLIC EFFECTS AND REPRODUCTIVE PERFORMANCES IN DAIRY COWS TREATED WITH A FUNCTIONAL FEED (NAT®W3)

FUSARI, Antonella;UBALDI, Antonio
2010-01-01

Abstract

The Authors investigated to correlate metabolic efficiency to reproductive performances by the administration of functional feed in high-producing dairy cattle. The trial want to study, also, the capability of laboratory diagnostic in evaluation and estimation of the reproductive capacities to select subjects to submit to reproductive praxis. Functional feed contains vitamins E, A, D3, organic-selenium, polyinsaturated fatty acids (PUFA) and a prebiotic by fermented cereals. Effects of PUFA administered were particularly investigated in lipoprotein fractions composition, in blood. Optimal relationship among LDL-cholesterol, total cholesterol and progesteron was related to best reproductive performances: in this trial. Authors can confirm this on the basis of livestock performances. Study realized during the most worm period of the year when mean daily temperature go up to 30°C. Metabolic parameters considered are linked to energetic, mineral and endocrine metabolisms. Determination were realized in blood-samples before, during, after the administration of NAT3. Bovines were fed with different addition of NAT3 (320-360 g/subj/die) for 4 months. Reproductive indices studied were: open-days and number of services per conception. Trend analysis of fertility indices demonstrated that blood levels of progesterone and blood antioxidant capability are strictly correlated and correlated also to reproductive performances. Efficacy of treatment is demonstrated by the trend of the fertility indices in the post treatment period during which indices return progressively to the pre treatment values in about 60 days: this period correspond to the lipid tissue turnover time. During these days a temporary build-up of PUFA and liposoluble vitamins was observed. Blood progesterone levels were higher (2.2 times) in correspondence of the 21st day post partum in treated subjects respect to control ( 0.18 vs 0.44 ng/l). Reproductive indexes recorded stressed that open-days varied from to . Number of services per conception was reduced from 121 to 95 at 60th day of treatment. In the next four months the value of the index settled between 90-95 days. Data obtained in this study show that administration of PUFA, antioxidants and probiotics administred in dairy cows can remodel metabolisms correlated to fertility such as progesterone, prostaglandins and prostacyclins synthesis. These evidences are stressed by trends recorded in the herd concerning values of open-days and the number of services per conception.
2010
9789563329612
METABOLIC EFFECTS AND REPRODUCTIVE PERFORMANCES IN DAIRY COWS TREATED WITH A FUNCTIONAL FEED (NAT®W3) / Gabaldo, G.; Gabaldo, M.; Sabato, G.; Fusari, Antonella; Ubaldi, Antonio. - XXVI:(2010), pp. 331-332. (Intervento presentato al convegno XXVI WORLD BUIATRICS CONGRESS tenutosi a Santiago, Chile nel November, 14-18, 2010).
File in questo prodotto:
File Dimensione Formato  
Proceeding WBC 2010 - gabaldo 2.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 220.9 kB
Formato Adobe PDF
220.9 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2419400
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact