Age Dynamics of the Exocrine Pancreatic Function in Broilers as Affected by the Level of Dietary Crude Protein

The study aims to determine the impact of dietary crude protein levels on the hematological parameters of Japanese quail from growth to ovipositor. To this end, five feeds with different crude protein levels (18, 20, 22, 24 and 26%) were supplied to 700 quails of three weeks of age. These were subdivided into six batches, including three batches of females and three batches of males for each feed group. After subjecting the quails to diets containing the different protein levels, four samples were taken at the fourth, fifth, sixth and seventh week of age. The samples taken were analyzed using an SYSMEX XN 350 automated hematological analyzer. The results of this investigation indicated that non-significant differences (P > 0.05) were observed in hematological parameters in both female and male quails. This study showed that dietary crude protein levels had no impact on the health status of Japanese quails. Keywords: Japanese quails, Crude protein, Hematological parameters.

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Effects of dietary crude protein levels on growth rate, meat production, digestible nutrients and economic return of californian rabbits (Oryctolagus cuniculus) in Mekong Delta of Vietnam

Can Tho University Journal of Science ◽

10.22144/ctu.2016.jen.007 ◽

2016 ◽

Vol 02 ◽

pp. 13

Author(s):

Trung, T.T., ◽

Dong, N.T.K.,

Keyword(s):

Growth Rate ◽

Oryctolagus Cuniculus ◽

Crude Protein ◽

Mekong Delta ◽

Meat Production ◽

Economic Return ◽

Protein Levels ◽

Dietary Crude Protein

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Dietary Crude Protein Levels and the Effect of Isoproterenol on In Vitro Lipogenesis in the Chicken

Journal of Nutrition ◽

10.1093/jn/120.12.1684 ◽

1990 ◽

Vol 120 (12) ◽

pp. 1684-1691 ◽

Cited By ~ 7

Author(s):

R. W. Rosebrough ◽

N. C. Steele

Keyword(s):

Crude Protein ◽

Protein Levels ◽

Dietary Crude Protein

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Effects of growth and dietary crude protein level until first insemination on milk production during first lactation in Holstein heifers

Animal Science Journal ◽

10.1111/j.1740-0929.2011.00900.x ◽

2011 ◽

Vol 82 (6) ◽

pp. 741-746 ◽

Cited By ~ 1

Author(s):

Takashige ISHII ◽

Kenji KAWASHIMA ◽

Haruo ORIBE ◽

Hiromi UEDA ◽

Toshiya HASUNUMA ◽

...

Keyword(s):

Milk Production ◽

Protein Level ◽

Crude Protein ◽

Dietary Crude Protein ◽

Crude Protein Level

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Growth and food utilization of the Australian short-finned eel, Anguilla australis australis (Richardson) given paired iso-energetic diets with increasing crude protein content

Animal Science ◽

10.1079/asc200528 ◽

2006 ◽

Vol 82 (2) ◽

pp. 169-174 ◽

Cited By ~ 1

Author(s):

K. Engin ◽

C. G. Carter

Keyword(s):

Protein Content ◽

Crude Protein ◽

High Energy ◽

Whole Body ◽

Food Utilization ◽

Crude Protein Content ◽

Efficiency Ratio ◽

Body Protein ◽

Anguilla Australis ◽

Dietary Crude Protein

AbstractThis study investigated the effects of 100 g/kg increments of crude protein (approx. 250 (P25) to 550 (P55) g/kg of crude protein) in paired iso-energetic diets on the growth performance of the juvenile Australian short-finned eel (1·83 (s.e. 0·01) g average wet weight). The highest growth response was obtained with treatment P45 followed by P35, P55 and P25. It appeared that food efficiency ratio (FER) increased with increasing crude protein content in low energy diets (treatments P25 and P35). However, 100 g/kg increase in dietary crude protein content (from 450 to 550 kg crude protein per kg diet) in high energy diets resulted in lower FER for treatment P55 than for the treatment P45. The protein efficiency ratio (PER, %) was higher in low protein:low energy diets (treatments P25 and P35) than that of high protein:high energy diets (treatments P45 and P55). The protein productive values (PPV, %) for treatments followed a similar trend to PER in this experiment. The lowest PPV was obtained by the treatment P55 and it was significantly different from that of the other three treatments. A proportional increase in dietary crude protein content in paired iso-energetic diets did not significantly change the whole body protein content. However, a small increase in whole body protein content with increasing dietary crude protein in each group was detected. In conclusion, the present study showed protein sparing effects of lipids and carbohydrates in the diets of the short-finned eel. Further studies specifically investigating the effects of dietary carbohydrate to lipid ratios at different protein levels would improve diet formulation and reduce nutrient impact in intensive recirculation systems.

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