The Effect Of Different Feeding Mode On Growth And Serum Biochemical Indices Of Young Xinjiang Brown Cattle

The propose of this study is to research the effect of tie and free-stall barn feeding on young Xinjiangbrown cattle growth and development, and explored the sense of two kinds of feeding for young cattles.The test selected68sixteen months of age Xinjiang brown young cattle divided into Control group (tie) andtest group (free-stall barn), respectively measured the young cattle’s body weight, body size and bloodsample in October, November, December, January and February. The test results of this experiment are asfollows：1. In this two feeding way, ad libitum free-stall barn group feeding can be improve the daily gain ofyoung Xinjiang brown cattle (P<0.01), free-stall barn group during the whole period ADG845.58g wassignificantly higher than in tie group619.11g, increased by36.58%. free-stall barn group young cattle’sbody height was significantly higher than tie group in October to February (P<0.01); body length wassignificantly higher than tie group in October to January (P<0.01), but in February, the free-stall barn groupwas significantly higher than tie group (P<0.05); free-stall barn group body length, chest girth, chest depth,chest width and hip width were significantly higher than tie group in the whole period (P<0.01).2. The effect of different feeding on Xinjiang brown cattle’s serum biochemical indices. Serum ALBcontent was significantly higher than tie group in december and January (P<0.01); serum GLB content wassignificantly higher than tie group in October, November and December (P<0.05); serum TP content wassignificantly higher than tie group in December, January and February (P<0.01); serum BUN content wassignificantly higher than tie group in October, November (P<0.01); serum GPT content was significantlyhigher than tie group in November, December and the next year January (P<0.05); serum GOT content wassignificantly higher than tie group in January, February (P<0.05); in February, free-stall barn group LDHcontent was significantly higher than tie group (P<0.01); in December, January and Februay, free-stall barngroup ALP content was significantly higher than tie group (P<0.05); free-stall barn group serum TAAcontent was significantly higher than tie group in January and February (P<0.05).3. The effect of different feeding on Xinjiang brown cattle’s serum hormone level. In January,free-stall barn group serum GH content was significantly higher than tie group (P<0.05), but in February,significantly higher than tie group (P<0.01); in December and January, free-stall barn group serum Tcontent was significantly higher than tie group (P<0.05), but in February, significantly higher than tie group(P<0.01); free-stall barn group T3content was significantly higher than tie group in January (P<0.05), butin February, significantly higher than tie group (P<0.01); in December, free-stall barn group T4content wassignificantly higher than tie group (P<0.05), but in January, T4content was significantly higher than tiegroup (P<0.01); in December, January and February, free-stall barn group young cattle’s FSH content wassignificantly higher than tie group (P<0.05).4. The effect of different feeding on Xinjiang brown cattle’s part of the Neurotransmitters. In Januaryand February, free-stall barn group young cattle’s serum MLT content was significantly higher than tiegroup (P<0.01); free-stall barn group serum5-HT content was significantly higher than tie group inJanuary (P<0.05), but in the February, free-stall barn group significantly higher than tie group (P<0.01); inDecember and January, free-stall barn group young cattle’s serum NE content was significantly higher thantie group (P<0.01); free-stall barn group serum HA content was significantly higher than tie group inFebruary (P<0.05).The research showed that ad libitum free-stall barn feeding can make the Xinjiang brown cattle’sgrowth performance better in the free conditions, to be more specific, significantly improving and rapidgrowth of the young cattle’s daily gain and various body measurement. free-stall barn feeding have asignificant influence on the young cattle’s serum biochemical indices, hormone level and neurotransmitters...