Influence of energy intake on growth and utilisation of dietary protein and energy in germ‐free and conventional chicks

Furuse, Mitsuhiro; Yokota, Hiro-omi; Tasaki, Iwao

doi:10.1080/00071668508416827

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…The use of an iso protein diet in our study may have increased ME/CP ratio of the diets, and this change may have caused excess abdominal fat in ducks, which was supported by Scott et al (1959), who observed that the carcass fat of 7.5-wk-old Pekin ducks increased as dietary ME/CP ratio increased. Furthermore, more fat deposition caused by high-energy diets may be due to higher efficiency of energy retention at this instance, and similar results in broilers were reported by Jackson et al (1982b) and Furuse et al (1985). Boekholt et al (1994) also found that the efficiency of energy retention was higher in fat than in protein when high-energy diets were consumed by broilers.…”

Section: Resultssupporting

confidence: 83%

Effects of Dietary Energy on Growth Performance and Carcass Quality of White Growing Pekin Ducks from Two to Six Weeks of Age

et al. 2008

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A dose-response experiment with 6 dietary energy levels (2,600, 2,700, 2,800, 2,900, 3,000, 3,100 kcal of AME /kg) was conducted to study the effects of dietary energy on growth performance and carcass quality of White Pekin ducks from 2 to 6 wk of age. Six hundred 14-d-old White Pekin ducks were randomly divided to 6 dietary treatments, each containing 5 replicate pens with 10 males and 10 females per pen, and these birds were raised until 6 wk of age. At 42 d of age, weight gain, feed intake, and feed:gain of ducks from each pen were measured, and 2 ducks (1 male and 1 female) selected randomly from each pen were slaughtered to evaluate the yields of abdominal fat, breast meat (including pectoralis major and pectoralis minor), and leg meat (including thigh and drumstick). As dietary energy increased from 2,600 to 3,100 kcal of AME/kg, the weight gain of ducks increased significantly, and the feed intake and feed:gain decreased significantly. According to the broken-line regression analysis, the AME requirements of White Pekin ducks from 2 to 6 wk of age for optimal weight gain and feed:gain were 3,008 and 3,030 kcal/kg, respectively, when dietary protein was 18%. On the other hand, high dietary energy did not affect breast and leg meat (P > 0.05), but abdominal fat increased (P < 0.05) when dietary AME was above 2,700 kcal/kg.

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Section: Resultssupporting

confidence: 83%

Effects of Dietary Energy on Growth Performance and Carcass Quality of White Growing Pekin Ducks from Two to Six Weeks of Age

et al. 2008

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“…The previous explanation is supported by results of Scott et al (1959). Furthermore, more fat deposition caused by high-energy diets may be due to higher efficiency of energy retention at this instance, similar results in broilers were reported by Jackson et al(1982) and Furuse et al (1985). Moreover, Boekholt et al (1994) found that the efficiency of energy retention was higher in fat than in protein when high energy diets were consumed by broilers.…”

Section: Some Carcass Traits: Effect Of Energy Levelsupporting

confidence: 83%

Effect of Dietary Energy and Corn Gluten Feed on the Performance of Growing White Pekin Ducks.

Hassan

2009

Journal of Productivity and Development

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A factorial design experiment (3x3) was performed to study the effect of three levels of energy (2800, 3000 and 3200 Kcal ME/Kg) and three levels of corn gluten feed, CGF (0, 8 and 16%) on growth performance and economical efficiency of White Pekin ducklings. A total number of 270 unsexed two-weeks-old White Pekin ducklings were randomly distributed among 9 treatment groups (30 ducklings each) nearly equal in average live body weight. Each group was subdivided into three replicates each of 10 ducklings. Growth performance, some carcass traits, blood constituents and economical efficiency were studied. The results obtained could be summarized as follows: Live body weight and daily weight gain were significantly (P<0.05) higher with the 3000 Kcal ME/Kg diet energy level at most experimental period. During the starter (2 to 7 weeks age) and the whole experimental (2 to 12 weeks age) periods, improved (P<0.05) feed conversion values were noticed with the 3000 Kcal ME/Kg diet energy level. Ducklings fed the level of 8% corn gluten feed possessed significantly (P<0.05) higher live body weight at 7 and 12 weeks of age than those fed 0 or 16% corn gluten feed. The best feed conversion value was found with ducklings fed 8% CGF. Liver, heart, total giblets and abdominal fat percentages were significantly (P<0.05) affected by dietary energy level. The previous carcass traits increased with increasing dietary energy level in Pekin duckling diets. However, no significant effects of dietary energy level on gizzard, carcass and dressing weight percentages of Pekin ducklings were observed. It is worth to note that, liver, heart, carcass and dressing percentages were increased significantly (P<0.05) with the increasing the dietary corn gluten feed from 0 to 16%.Increasing the dietary energy level from 2800 to either 3000 or 3200 Kcal ME/Kg diet caused a significant (P<0.05) increase in cholesterol blood values. Ducklings fed the diet compared with other treatment or control. From the previous results, it can be concluded that a dietary level of 3000 Kcal ME/Kg diet with 8% CGF is recommended for feeding growing Pekin ducks from 2 to 12 weeks of age.

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“…Unsuitable micro flora population in the gastrointestinal tract will lead to unfavorable nutrient absorption [16] and the increasing energy requirements for maintenance [17]. This may be a possible mechanism for higher growth and better FCR in broiler consuming SEO.…”

Section: Growth Parametersmentioning

confidence: 99%

The Effect of Savory (Satureja khuzistanica) Essential Oils on Performance and Some Blood Biochemical Parameters of Ross and Cobb Broilers

Goodarzi¹,

Pour²,

Modiri³

2014

ARRB

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Influence of energy intake on growth and utilisation of dietary protein and energy in germ‐free and conventional chicks

Cited by 15 publications

References 9 publications

Effects of Dietary Energy on Growth Performance and Carcass Quality of White Growing Pekin Ducks from Two to Six Weeks of Age

Effects of Dietary Energy on Growth Performance and Carcass Quality of White Growing Pekin Ducks from Two to Six Weeks of Age

Effect of Dietary Energy and Corn Gluten Feed on the Performance of Growing White Pekin Ducks.

The Effect of Savory (Satureja khuzistanica) Essential Oils on Performance and Some Blood Biochemical Parameters of Ross and Cobb Broilers

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