This experiment was conducted to study the effects of dietary phosphorus level on growth performance, serum biochemical indices and tibia performance of growing pigs, and to explore the optimal phosphorus level in the diet of growing pigs weighting 30 to 60 kg. A single factorial randomized design was adopted, and thirty crossed pigs (Duroc×Landrace×Yorkshire) with an average bodyweight of (32.12±0.49) kg were randomly allotted into 5 groups with 6 replicates per group and 1 pig per replicate. Pigs were fed corn-soybean experimental diets supplemented with 0.38% (control group), 0.43%, 0.48%, 0.53% and 0.58% phosphorus, respectively. The adjustment period lasted for 7 days, and the experimental period lasted for 28 days. The results showed as follows: 1)compared with the control group, the average daily gain, average daily feed intake in 0.53% group were significantly increased (P<0.01), however, the feed/gain in 0.53% group was significantly decreased (P<0.01). 2) The serum phosphorus content in experimental groups was significantly higher than that in control group (P<0.01), and the serum calcium content in 0.53% group was significantly lower than that in control group (P<0.05). The insulin-like growth factor Ⅰ (IGF-Ⅰ) content was not affected by dietary phosphorus level (P>0.05). 3) The length of tibia, the content of calcium and phosphorus of tibia were increased at first and decreased subsequently with the dietary phosphorus increasing, and they got the highest values in 0.53% group (P>0.05). The dry fat-free weight of tibia in 0.53% group was significantly higher than that in control group (P<0.05), and there was no significant difference among other groups (P>0.05). In conclusion, the optimal phosphorus requirement of growing pigs weighing 30 to 60 kg is 0.53% under the conditions of this experiment.
SU Yuejuan
,
SUN Hui
,
WANG Xiaoyu
,
XU Xuekui
,
CHENG Chuanfeng
,
QIN Guixin
. Phosphorus Requirement of Growing Pigs Weighing 30 to 60 kg[J]. Chinese Journal of Animal Nutrition, 2012
, 24(8)
: 1414
-1420
.
DOI: 10.3969/j.issn.1006-267x.2012.08.004
[1] JONGBLOED A W,EVERTS H,KEMME P A.Phosphorus availability and requirements in pigs //Recent advances in animal nutrition.London:Butterworth,1991:65-80.
[2] 李德发.猪的营养[M].北京:中国农业科学技术出版社,2003:220.
[3] 张永刚,李铁军,印遇龙,等.生长猪真可消化磷需要量的研究[J].中国科学院研究生院学报,2006,23(4):500-508.
[4] 王凤来,陈清明,张曼夫,等.日粮不同磷水平和钙磷比例对香猪钙磷代谢的影响[J].中国畜牧杂志,1999,35(6):7-10.
[5] NRC.Nutrient requirement of swine (poultry)[S].Washington,D.C.:National Academy Press,1998.
[6] 齐广海,林济华,王和民.日粮磷和锰水平对肉仔鸡生产性能的影响[J].中国农业科学,1995,28(S1):167-170.
[7] 徐建业,董宪彤,张海明.骨碱性磷酸酶测定在早期诊断佝偻病与血清碱性酶及钙磷测定的比较[J].实用医技杂志,2004,11(8):1421-1422.
[8] 郭春华,冯保华,袁季广,等.猪血清碱性磷酸酶的研究[J].云南畜牧兽医,1991(4):1-4.
[9] 王凤来,张曼夫,陈清明,等.日粮磷和钙磷比例对小型猪(香猪)血清、肠、骨碱性磷酸酶及血清钙磷的影响[J].动物营养学报,2001,13(1):36-42.
[10] 李佳,吴东波.添加植酸酶日粮不同磷水平和钙磷比对生长肥育猪血液生化指标和骨骼性能的影响[J].畜禽业,2007(4):8-11.
[11] 曾其恒.不同磷水平与钙磷比例对特种野猪生产性能、胴体品质、血液指标的影响研究 .硕士学位论文.南宁:广西大学,2008.
[12] 黄大有.实验诊断的理论基础和临床意义[M].北京:人民卫生出版社,1985:110-116.
[13] 殷国荣,姚树展,杨建一,等.缺磷症和肝功障碍奶牛血清碱性磷酸酶的诊断价值[J].畜牧兽医学报,1993,24(4):359-365.
[14] BERNDT T J,KNOX F G.Renal regulation of phosphate excretion[M].New York:Raven,1992:2511-2532.
[15] HAMMERMAN M R.The growth hormone-insulin-like growth factor axis in the kidney[J].Animal Journal Physiol Renal Fluid Electrolyte Physiol,1989,257:503-514.
[16] KEMPSON S A.Peptide hormone action on renal phosphate handling[J].Kidney Investigation,1996,49:1005-1009.
[17] QUIGLEY R,BAUM M.Effects of growth hormone and insulin-like growth factor 1 on rabbit proximal convoluted tubule transport[J].Clinical Investigation,1991,88:368-374.
[18] CAVERZASIO J,DANISI G,STRAUB R W,et al.Adaptation of phosphate transport to low phosphate diet in renal and intestinal brush border membrane vesicles:influence of sodium and pH[J].Pflügers Archiv:European Journal of Physiology,1987,409:333-336.
[19] JEHLE A W,FORGO J,BIBER J,et al.IGF-Ⅰand vanadate stimulate Na/Pi cotransport in OK cells by increasing type Ⅱ Na/Pi cotransporter protein stability[J].Pflügers Archiv:European Journal of Physiology,1998,437:149-159.
[20] 王凤来,洪海燕,张曼夫,等.日粮磷和钙磷比例对小型猪骨骼性能的影响[J].中国农业大学学报,2000,5(3):96-101.
[21] REINHART G A,MAHAN D C.Effect of various calcium phosphorus rations at low and high dietary phosphorus for starter,grower and finishing swine[J].Animal Science,1986,63:457-466.
[22] KORNEGAY E T,THOMAS H R.Phosphorus in swine:influence of dietary calcium and phosphorus levels and growth rate on serum minerals,soundness scores and bone development in barrows,gilts and boars[J].Animal Science,1981,52:1049-1059.
[23] MAXSON D C.Dietary calcium and phosphorus levels for growing swine from 18 to 57 kilograms body weight[J].Animal Science,1983,56:1124-1134.
[24] 王晋晋,王金荣,付佐龙,等.日粮中钙、磷水平对1-3周龄肉鸡骨骼生长的影响[J].动物营养学报,2010,22(4):1088-1095.
[25] 林映才,蒋宗勇.生长肥育猪有效磷需要量的研究[J].养猪,2002(4):1-7.
