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Comparison of Nutritional Value in Domestic Double-Low Rapeseed Meal and Imported Common Rapeseed Meal for Growing Pigs

  • WANG Fengli ,
  • LIU Ling ,
  • ZANG Jianjun ,
  • LAI Changhua
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  • College of Animal Science and Technology, China Agricultural University, Beijing 100193, China

Received date: 2012-12-11

  Online published: 2013-05-15

Abstract

This experiment was conducted to compare the nutritional value in domestic double-low rapeseed meal and imported common rapeseed meal. Two experiments were conducted in this study. Experiment 1: eighteen castrated barrows with similar initial body weight of (48.3±2.4) kg were used in a completely randomized design. The total collection method was used. The barrows were randomly allocated to 3 groups with 6 replicates per group and 1 pig per replicate. The barrows in 3 groups were fed a basal diet or two other experimental diets. The basal diet was formulated to meet requirements of growing pigs and two other experimental diets were formulated by substituting 20% of the basal diet with domestic double-low rapeseed meal or imported common rapeseed meal, respectively. The test lasted for 14 days (9 day for adaptation and 5 day for collection). Experiment 2: eighteen castrated barrows (fitted with simple T-cannulas) with similar initial body weight of (35.3 ± 3.8) kg were used in this experiment. The indicator method was used. The barrows were randomly allocated to 3 groups with 6 replicates per group and 1 pig per replicate. The barrows in 3 groups were fed a N-free diet or two other experimental diets. The two experimental diets were formulated with domestic double-low rapeseed meal or imported common rapeseed meal as the sole source of protein and amino acids. The test lasted for 7 days (5 day for adaptation and 2 day for collection). The results showed that the apparent digestible energy and the apparent digestibility of energy in domestic double-low rapeseed meal were significantly lower than those in imported common rapeseed meal (P<0.01), and the apparent metabolizable energy in domestic double-low rapeseed meal was significantly lower than that in imported common rapeseed meal (P<0.05). The standardized ileal digestibility of amino acids in domestic double-low rapeseed meal was lower. In conclusion, the nutritional value in domestic double-low rapeseed meal is lower than that in imported common rapeseed meal.

Cite this article

WANG Fengli , LIU Ling , ZANG Jianjun , LAI Changhua . Comparison of Nutritional Value in Domestic Double-Low Rapeseed Meal and Imported Common Rapeseed Meal for Growing Pigs[J]. Chinese Journal of Animal Nutrition, 2013 , 25(6) : 1324 -1331 . DOI: 10.3969/j.issn.1006-267x.2013.06.025

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