A Mordenti

University of Bologna, Bologna, Emilia-Romagna, Italy

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Publications (9)7.4 Total impact

  • Article: The quality of raw and cured hams as affected by the dietary replacement of soya bean meal with alternative protein sources.
    Veterinary Research Communications 08/2009; 33 Suppl 1:289-91. · 0.82 Impact Factor
  • Article: Different protein sources in piglet feeding.
    G Martelli, L Sardi, P Parisini, A Mordenti
    Veterinary Research Communications 10/2003; 27 Suppl 1:261-4. · 0.82 Impact Factor
  • Article: Effect of age at slaughter on carcass traits and meat quality of Italian heavy pigs.
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    ABSTRACT: Barrows and gilts (n = 128) from four breed crosses were used to investigate the effect of age at slaughter on carcass traits, proteolytic enzyme activity, and meat and fat quality. Pigs were blocked by breed cross into four blocks, and within blocks, one pen (eight barrows and eight gilts) was assigned randomly to be slaughtered at either 8 or 10 mo of age. Pigs were fed a corn-barley-soybean meal finisher diet from 104 +/- 2.5 d of age (37.7 +/- 0.33 kg BW) to the appropriate slaughter age. Carcasses from older (10 mo) pigs had lower (P < 0.01) muscularity indexes and lean cut yields than those of younger (8 mo) pigs, but dressing percentage and longissimus muscle area increased (P < 0.01) with age. Older pigs produced a redder (P < 0.01) and darker (P < 0.05) semimembranosus, with lower (P < 0.01) ultimate pH and cathepsin B and B + L activities, as well as higher (P < 0.01) aminopeptidase hydrolyzing activity than younger pigs. Moreover, the longissimus muscle of pigs slaughtered at 10 mo of age had lower (P < 0.01) drip and cooking loss percentages than that from pigs slaughtered at 8 mo of age. Ham subcutaneous fat from 10-mo-old pigs had greater (P < 0.05) percentages of oleic acid and lower (P < 0.01) proportions of moisture, linoleic, and linolenic acids than subcutaneous fat from pigs slaughtered at 8 mo of age. Results from this study indicate that fresh hams from pigs slaughtered at 10 mo of age would be more suitable for the production of high-quality, Italian, dry-cured hams.
    Journal of Animal Science 10/2003; 81(10):2448-56. · 2.10 Impact Factor
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    Article: Marginal efficiency of free or protected crystalline L-tryptophan for tryptophan and protein accretion in early-weaned pigs.
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    ABSTRACT: We conducted an experiment to determine the efficiency of dietary tryptophan (Trp) for protein and Trp accretion in 4-kg (live weight) pigs. Five Trp-deficient diets were fed for 18 d after weaning. The basal diet contained 23.4% protein and .14% Trp. The four other diets were similar to the basal diet but were supplemented with .06 or .12% free or protected crystalline Trp. No differences were found between the two crystalline Trp forms for all variables under study. Equal amounts of all diets were fed by intragastric tube feeding. Daily weight gain (P < .10), gain:feed (P < .05), and daily protein retention (P < .01) increased linearly as dietary Trp increased. Similarly, retention and gross efficiency (retained: intake) of almost all amino acids increased. Tryptophan retention also increased linearly (P < .05), but gross efficiency was maximal (40.1%) with protein-bound Trp from the basal diet, and it decreased linearly as dietary Trp increased. This important reduction was the result of a low marginal efficiency for crystalline (13.6 +/- 3.3%) free or protected Trp.
    Journal of Animal Science 06/1997; 75(6):1561-8. · 2.10 Impact Factor
  • Article: Effect of propylene glycol supplementation around parturition on milk yield, reproduction performance and some hormonal and metabolic characteristics in dairy cows.
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    ABSTRACT: Thirty-nine multiparous Holstein cows were used to measure the effect of propylene glycol treatment around parturition on milk yield, reproductive efficiency and some hormone and metabolite concentrations. Cows were assigned randomly to control (n = 19) or propylene glycol treated (n = 20) groups. Propylene glycol (300 g) was administered directly mixed with the diet from day 10 prior to the expected calving date until parturition (day 0) and orally after dilution in 1 l water on days 3, 6, 9 and 12. Blood samples were collected on days -20, -5, 0, 3, 10, 25 and 50 while milk samples were taken weekly until 13 weeks post partum. Body condition scores, recorded on days -20, 15 and 50, were not affected by propylene glycol administration. Propylene glycol did not significantly affect milk yield or composition but linear somatic cell score measured from the first 13 weeks post partum was reduced by propylene glycol administration (P < 0.01). Moreover, propylene glycol reduced milk urea (-25 mg/l, P < 0.05), especially during the first 9 weeks post partum. Plasma insulin concentrations were similar in both groups during the experiment while insulin-like growth factor I (P < 0.05) and insulin-like growth factor-binding protein 3 (P < 0.001) levels were higher on days 10, 25 and 50 post partum in the propylene glycol group. Propylene glycol administration decreased plasma non-esterified fatty acid concentrations (P < 0.05 to P < 0.01) but increased total cholesterol levels (P < 0.01) after parturition while 3-hydroxybutyrate levels were unaffected by the treatment. Changes in the hormone and metabolic concentrations after propylene glycol administration in the last few days of gestation and the first week of lactation seem to indicate that energy balance in the treated group was probably more positive than in the control group. There was also evidence that propylene glycol administration prevented fatty liver syndrome and hastened the resumption of oestrous cycles (P < 0.001).
    J Dairy Res 02/1996; 63(1):11-24. · 1.57 Impact Factor
  • Article: [Production of veal calves with reconstituted milk containing various quantities of fat].
    A Mordenti, R Romiti, F R Bitti
    Folia veterinaria Latina 02/1974; 4(1):1-23.
  • Article: [Effect of terramycin and oleandomycin on the weight increases of broilers].
    Bollettino della Società italiana di biologia sperimentale 04/1962; 38:288-9.
  • Article: [Research on the preservation of the serum of milk destined as food for swine].
    Bollettino della Società italiana di biologia sperimentale 04/1962; 38:285-8.
  • Article: High moisture grain in the nutrition of swine.
    A Mordenti, G Zaghini
    Folia veterinaria Latina 7(4):275-93.

Institutions

  • 2003–2009
    • University of Bologna
      Bologna, Emilia-Romagna, Italy
    • Stazione Sperimentale per l'Industria delle Conserve Alimentari
      Parma, Emilia-Romagna, Italy