Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES   OCTOBER-NOVEMBER 2007 , Volume 14 , Number 4; Page(s) 149 To 161.
 
Paper: 

EFFECT OF NUTRITION MANAGEMENT ON RUMEN FERMENTATION PARAMETERS, BLOOD METABOLITES, TYPE AND GROWTH OF HOLSTEIN NEONATAL CALVES

 
 
Author(s):  SAREMI B.*, NASERIAN A.A.
 
* DEPT. OF ANIMAL SCIENCE, EDUCATION CENTER OF JIHAD-E AGRICULTURE, IRAN
 
Abstract: 

Twenty female Holstein calves with average 40.7±5.7 Kg body weight were randomly placed on treatments in individual boxes and fed 10% of birth weight colostrum and milk in the first two days and until 45 days old. Treatments include: 1) feeding high quality alfalfa and calf starter (Ad lib) from 7 days old (Control), 2) feeding high quality alfalfa and calf starter (Ad lib) from 30 days old (Treatment). Both groups of calves were weaned at 45 days old. Data were analyzed in a completely randomized design evaluating effects of two nutrition management in calf period on rumen fermentation parameters, blood metabolites, type and growth of Holstein female calves. Calves in treatment group tend to consume more concentrate after solid feeding in contrast to control but it decreased gradually include lesser alfalfa and total DMI, which was statistically significant at 90 days old (P<0.05). Results showed that there is no effect on body gain of calves before or after weaning or on body weight at sampling dates. Feed to gain ratio was not altered too. Sum of body weight gain at 15-day periods was not influenced by treatments. Treatment showed significant reduction at nutrients digestibility (DM, OM, CP, ADF and NDF) (P<0.01). Rumen fermentation parameters (pH and NH3) just at 30 days old were significantly different (P<0.01). Glucose, TP and BUN were not altered by treatments except glucose, which was significantly different at 80 days old. Body measurements include: body length, wither height, hip height, abdominal size, heart girth, metacarpus size, metatarsus size, pin width, hip width and pin to hook length were not altered by treatments at sampling dates. It can be concluded that milk-based diet up to 30 days old could improve feed to gain ratio but performance of calves was reduced and using this method at young calves rearing depends on more researches.

 
Keyword(s): NUTRITION MANAGEMENT, PERFORMANCE, CALF
 
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