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Articles by J. Galobart
Total Records ( 2 ) for J. Galobart
  J. Galobart and E.T. Moran Jr.
  Skin-less boneless fillets obtained from 500 broiler males at 56 days of age exhibited a median 48h PM L* = 63.0. Ten samples randomly representing the population below (L* < 62.5, average = 60.4) and 10 above (L* > 63.5, average = 65.1) were held at -20°C for 5 months. Muscles were thawed 3 days at 4°C. Total drip was 10.7%, and similar losses occurred for samples above and below the 48h PM L* median. L* values measured on thawed fillets significantly decreased from their respective 48PM values with samples that had been located above the median but were similar with those below. Redness (a*) was similar among fresh samples, whereas a greater yellowness (b*) occurred with muscles having L* above the median than below it. Freezing led to increased a* and b* to the same extent after thawing. Light reflectance of fillets from late-marketed broilers indicates that PSE-like muscle would prevail with the population-at-large and uniformly exhibit associated problems.
  J. Galobart and E.T. Moran Jr.
  Experimentation examined the advantages of decreased pen stocking density of male broilers reared in a summer environment from 6 to 8 weeks of age while receiving either a whole pellet or crumbed feed. Whole pellets led to improved body weight gain as did reduced stocking density; however, mortality due to sudden death syndrome increased when both advantages were combined. Neither treatment significantly affected feed conversion. Males fed pellets had chilled carcasses with increased abdominal fat, whereas amounts of fillets and tenders were similar to those given crumbs. Conversely, expanding the area available for each bird enabled improved recovery of fillets and tenders without altering abdominal fat. Light reflectance of fillets measured 48 h post-mortem revealed a higher L* (lightness) and lower a* (redness) with birds that had received pellets than crumbs, whereas reduced stocking density increased b* (yellowness) values without altering L* and a*. Improving the stability of pelleted feed and reducing pen stocking density enhanced the overall production of heat stressed broilers, but each factor did so in an independent and different manner.
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