Allometric Growth Patterns and Meat Yields of Carcass Parts of Turkey Toms as Influenced by Lighting Programs and Age

Peng, I. C.; Adams, R. L.; Furumoto, Emily J.; Hester, Patricia Y.; Larsen, James E.; Pike, Oscar A.; Stadelman, W. J.

doi:10.3382/ps.0640871

Cited by 30 publications

(16 citation statements)

References 12 publications

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“…This agrees with data reported by Peng et al (1985). The amounts of breast muscle at 16 and 20 wk of age were less in birds from the FL line than in individuals from the F line.…”

Section: Resultssupporting

confidence: 94%

Comparison of Bone and Muscle Growth in Turkey Lines Selected for Increased Body Weight and Increased Shank Width

et al. 1987

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A subline (FL) of a long-term growth-selected line (F) of turkeys was established by mass selecting solely for increased shank width at the narrowest point (dew claw). A comparison was made of bone and muscle growth in Line FL (fourth generation of selection), Line F (17th generation of selection), and a randombred control (RBC2, the base population of F) at 8, 16, and 20 wk of age. Also, a sample of the tibiotarsal and femur bones was studied histologically for evidence of pathological conditions. No significant pathological changes were observed in bones from turkeys of the different lines at the ages examined. Samples for histological study were taken at Day 1, 27, 56, 84, 112, and 140 posthatching. Genetic increases in body weight (F and FL lines) resulted in a significant decline in the relative amount of leg muscles from 16 to 20 wk of age while in Line RBC2 the relative amount of leg muscles increased slightly from 16 to 20 wk of age. This resulted in a significant line x age interaction. No significant differences in the amount of leg muscles were detected between turkeys of Lines F and FL. Amount of breast muscles increased consistently with age in all lines. Amount of breast muscles (absolute and as a percentage of body weight) was larger in Line F than in the FL and RBC2 lines. The actual weight of the breast muscles was larger in Line FL than in the RBC2 line but as a percentage of body weight there was no significant difference.(ABSTRACT TRUNCATED AT 250 WORDS)

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“…This agrees with data reported by Peng et al (1985). The amounts of breast muscle at 16 and 20 wk of age were less in birds from the FL line than in individuals from the F line.…”

Section: Resultssupporting

confidence: 94%

Comparison of Bone and Muscle Growth in Turkey Lines Selected for Increased Body Weight and Increased Shank Width

et al. 1987

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“…As time progressed, wing yield from both sexes and drudthigh yield from males declined (Table 5). This finding was in accord with that of other investigators who reported that for males, (1) wing and thigh parts matured earlier than the breast part and (2) yield of meat from wing, drum and thigh (expressed as percent of chilled carcass weight) decreased from 15 to 26 weeks (Peng et al 1985). Drudthigh yield from females did not change over time (Table 5).…”

Section: Effect Of Sex and Age Combined With Level Of Supplemental Fasupporting

confidence: 94%

Visceral Fat and Parts From Carcasses of Turkeys Fed Three Sources of Supplemental Fat

King

Fitzpatrick

1989

Journal of Food Quality

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Turkeys were fed diets containing supplemental (2% to 6%) soybean oil, a blend of soybean oil and poultry fat, or poultry fat for 22 weeks. At 2 week intervals, beginning at week 12, two to four male and female turkeys fed each diet were processed. Source of fat did not affect total weight of parts, yield of visceral fat, or yield of breast, drumlthigh, wing, back, or neck for either sex. Total weight of parts, yield of visceral fat, and neck yield were affected by sex. Total weight of parts and visceral fat from both sexes, along with breast yield from toms increased over time; wing yield from both sexes and drumlthigh yield from males declined. Yields of breast and drumlthigh from hens along with back and neck from toms remained constant overtime. Neck yield from hens declined during weeks 12 through 16, then remained constant.

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“…Carcass yields were determined as described by Wesley et al (1981) and Peng et al (1985) on birds from all dietary treatments except tiiose of the low plane diet (Diet 6). Carcass yields were not determined on birds fed the low plane diet (Diet 6) because of reduced market weights noted in the companion paper (Hester et al, 1990).…”

Section: Methodsmentioning

confidence: 99%

The Effect of Compensatory Growth on Carcass Characteristics of Male Turkeys

1990

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Male turkeys were fed for ad libitum intake dietary levels of protein and amino acids at 74% of controls from 6 to 12 wk of age. The treatment in which birds were returned to control rations from 12 to 20 wk of age was designated as the low compensatory plane dietary regimen. Turkeys given diets with protein and amino acids at levels 20% above those in control diets from 13 to 20 wk of age were referred to as the high compensatory plane dietary regimen. By 20 wk of age, realimentation had successfully resulted in live body weights comparable with those of controls, but carcass weights were significantly lower in birds fed the low and high compensatory plane diets. Percentage yield of drums, wings, shell, as well as skin and fat did not differ among dietary treatments. Lowered protein and amino acid consumption from 6 to 12 wk of age caused lighter breast and breast muscle weights at 20 wk of age. The percentage yield of breast and breast muscle declined, and thigh and thigh muscle increased for the birds fed the low compensatory plane diet when compared with the controls. The birds fed the low compensatory plane diet were placing a greater proportion of their weight gains during realimentation on thigh muscle rather than breast muscle deposition. Compensatory growth did not affect the absolute length or width of the tarsometatarsus or testes weights at 20 wk of age.

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Allometric Growth Patterns and Meat Yields of Carcass Parts of Turkey Toms as Influenced by Lighting Programs and Age

Cited by 30 publications

References 12 publications

Comparison of Bone and Muscle Growth in Turkey Lines Selected for Increased Body Weight and Increased Shank Width

Comparison of Bone and Muscle Growth in Turkey Lines Selected for Increased Body Weight and Increased Shank Width

Visceral Fat and Parts From Carcasses of Turkeys Fed Three Sources of Supplemental Fat

The Effect of Compensatory Growth on Carcass Characteristics of Male Turkeys

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