NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves
Salama,, A. (2002). NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves. EKB Journal Management System, 27(5), 2893-2907. doi: 10.21608/jappmu.2002.254741
A. M. A. Salama,. "NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves". EKB Journal Management System, 27, 5, 2002, 2893-2907. doi: 10.21608/jappmu.2002.254741
Salama,, A. (2002). 'NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves', EKB Journal Management System, 27(5), pp. 2893-2907. doi: 10.21608/jappmu.2002.254741
Salama,, A. NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves. EKB Journal Management System, 2002; 27(5): 2893-2907. doi: 10.21608/jappmu.2002.254741

NEW APPROACH FOR USING HEART GIRTH FOR CALCULATING NUTRIENT REQUIREMENTS 1- For fattening Baladi male calves

Journal of Animal and Poultry Production
Article 6, Volume 27, Issue 5, May 2002, Page 2893-2907  XML PDF (729.06 K)
Document Type: Original Article
DOI: 10.21608/jappmu.2002.254741
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Author
A. M. A. Salama,
Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt.
Abstract
Twenty four male Baladi calves of 228 kg average live body weight (LBW) were divided into four groups. Animals were fed according to Shehata (1976) allowances (T1), animal heart girth (HG)x0.032 (T2), animal HGx0.034 (T3), and animal HGx0.036 (T4). The nutrients digestibility and serum total protein, albumin and urea-N concentrations of the treatments were gradually increased from T1 to T4. Also, the nutrients digestibility and serum total protein, albumin, globulins, A/G ratio and urea-N were increased with age progress. Daily weight gain and HG gain in T3 were significantly higher than T1. The economic efficiency in T2 was higher than other treatments. The results showed that the T2 was the best treatment. Every cm of HG in (T2) consumed 0.066, 0.056, 0.007, 0.032 and 0.040kg /cm from DM, OM, CP, SE and TDN, respectively. Therefore, the nutrients requirements of male Baladi calves can be determined by the following equation:
DM requirement  (kg/head/day) = Animal HG x 0.066
OM requirement  (kg/head/day) = Animal HG x 0.056
CP requirement    (kg/head/day) = Animal HG x 0.007
SE requirement    (Kg/head/day) = Animal HG x 0.032
TDN requirement (Kg/head/day) = Animal HG x 0.040
Or:-      DM requirement  (kg/head/day) = Animal HG / 15.1
OM requirement  (kg/head/day) = Animal HG / 17.8
CP requirement    (kg/head/day) = Animal HG / 143.4
SE requirement    (Kg/head/day) = Animal HG / 31.1
TDN requirement (Kg/head/day) = Animal HG / 24.8
The results of this study showed that the small holder can use the following equations to calculate the feed quantity for male Baladi calves which fed on concentrate feed muxture (CFM), berseem hay and wheat straw (at a roughage / concentrate ratio of 55:45) :
The requirement of CFM (kg/head/day) = Animal HG x 0.040 or Animal HG/25.5
The requirement of berseem hay(kg/head/day) = Animal HGx0.015 or Animal HG/69.7
The requirement of wheat straw (kg/head/day) = Animal HGx0.019 or Animal HG/54.1
Keywords
calves; requirements; heart girth
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