EFFECT OF SOYBEAN TEXTURIZED PROTEIN ON G ROWTH, APPARENT DIGESTIBILITY AND RETENTION IN PRERUMINANT KIDS

Citation
Tdz. Setenareski et In. Doprado, EFFECT OF SOYBEAN TEXTURIZED PROTEIN ON G ROWTH, APPARENT DIGESTIBILITY AND RETENTION IN PRERUMINANT KIDS, Arquivos de biologia e tecnologia, 36(2), 1993, pp. 363-374
Citations number
NO
Categorie Soggetti
Biology
ISSN journal
03650979
Volume
36
Issue
2
Year of publication
1993
Pages
363 - 374
Database
ISI
SICI code
0365-0979(1993)36:2<363:EOSTPO>2.0.ZU;2-I
Abstract
Eighteen 7-day-old crossbred male kids (3/4 Saanen) were used to study growth, feed intake, diarrhea occurrence, apparent digestibility and diet retention. Diets consisted of cow milk (CM) or a milk replacer in which 30% of soy protein (SP30) or 60% af-soy protein (SP60) in which CM proteins were substituted by texturised soy protein. Kids were rem oved from their dams soon after birth and received colostrum until 3(r d) dau. Goat's milk was gradually replaced by the experimental diets f rom the 8(th) day (2 days of transition) which were continued until th e 49(th) day (200g/Kg/LW/day). The animals' health was good during the experimental period. Three kids died on SP60 diet. The average daily gain (g/day) and feeding intake (% of above proposed diet given) for C M, SP30 and SP60 diets were respectively (average+/-deviation standard ): 144,13+/-25,81a; 129,13+/-35,40a; 108,40+/-12,43b and 99.95; 98,80; 99,27%. Apparent digestibility of dry matter, crude protein, organic matter and phosphorus was higher (P<0,05) in CM diet, lower in SP60 di et and intermediate in SP30 diet. Fat digestibility was higher (P<0,05 ) in CM diet than in the SP60 one. However, it was similar in CM and S P30 diets and the SP30 and SP60 diets. Nevertheless. the apparent dige stibility of ash and calcium did not differ between the 3 diets. The a pparent digestibility of nitrogen-free extract was higher (P<0,05) for CM and SP30 diets than with SP60 diet. The apparent retention of nitr ogen and calcium did not differ significantly between CM, SP30 and SP6 0 diets. The apparent retention of phosphorum was similar (P>0,05) bet ween CM and SP30, and SP30 and SP60 diets. However, the apparent reten tion as higher ( P<0,05) in the CM diet than with SP60 diet.