4. Discusion
It has been established that the survival and the growth of
shrimps are strictly related to the quality of the distributed feed
and, in particular, to the protein source (Cahu and Zambonino-
Infante, 2001; Cruz- Suárez et al., 1992; Sudaryono et al., 1995;
Sudaryono et al., 1996). Regarding the survival rates of shrimps at
the end of the trial, it was found to be relatively high (more than
82%), indicating that the nutritive requirements for shrimp were satisfied
by all these diets. Regarding this parameter, two experimental
diets (DS3 and DS6) were found better than the control. Such results
are in accordance with previous studies which revealed that the survival
of the animal can be improved when fish protein hydrolysates
were supplemented in the diet. For instance, Kvåle et al. (2002)
reported that a survival rate of halibut larvae of 67% was obtained
when their diet was enriched with 10% hydrolysates from cod and
squid muscle, compared to 57% for the control diet. Similarly, the
survival rate of bass larvae was increased from 39% to 47% after
replacing 25% of the fishmeal in their diets by a commercial fish protein
hydrolysate (Cahu et al., 1999).
4. Discusion
It has been established that the survival and the growth of
shrimps are strictly related to the quality of the distributed feed
and, in particular, to the protein source (Cahu and Zambonino-
Infante, 2001; Cruz- Suárez et al., 1992; Sudaryono et al., 1995;
Sudaryono et al., 1996). Regarding the survival rates of shrimps at
the end of the trial, it was found to be relatively high (more than
82%), indicating that the nutritive requirements for shrimp were satisfied
by all these diets. Regarding this parameter, two experimental
diets (DS3 and DS6) were found better than the control. Such results
are in accordance with previous studies which revealed that the survival
of the animal can be improved when fish protein hydrolysates
were supplemented in the diet. For instance, Kvåle et al. (2002)
reported that a survival rate of halibut larvae of 67% was obtained
when their diet was enriched with 10% hydrolysates from cod and
squid muscle, compared to 57% for the control diet. Similarly, the
survival rate of bass larvae was increased from 39% to 47% after
replacing 25% of the fishmeal in their diets by a commercial fish protein
hydrolysate (Cahu et al., 1999).
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4 . discusion
มันได้ก่อตั้งขึ้นที่การอยู่รอดและการเจริญเติบโตของกุ้ง
เกี่ยวข้องอย่างเคร่งครัดเพื่อคุณภาพของการกระจายอาหาร
และ โดยเฉพาะอย่างยิ่ง การเป็นแหล่งโปรตีนและ ( cahu zambonino -
Infante , 2001 ; ครูซ - ซู ซัวเรซ et al . , 1992 ; sudaryono et al . , 1995 ;
sudaryono et al . , 1996 ) เกี่ยวกับอัตรารอดของกุ้งที่
จบคดีพบจะค่อนข้างสูง ( มากกว่า
82% ) บ่งชี้ว่า ความต้องการทางโภชนาการสำหรับกุ้งพอใจ
โดยอาหารเหล่านี้ทั้งหมด เกี่ยวกับพารามิเตอร์นี้ทดลอง 2
( และอาหารสุด ds6 ) พบมากกว่าการควบคุม
ผลดังกล่าวสอดคล้องกับการศึกษาก่อนหน้านี้ที่พบว่า ความอยู่รอดของสัตว์สามารถปรับปรุง
เมื่อโปรตีนของปลาwere supplemented in the diet. For instance, Kvåle et al. (2002)
reported that a survival rate of halibut larvae of 67% was obtained
when their diet was enriched with 10% hydrolysates from cod and
squid muscle, compared to 57% for the control diet. Similarly, the
survival rate of bass larvae was increased from 39% to 47% after
replacing 25% of the fishmeal in their diets by a commercial fish protein
hydrolysate (Cahu et al., 1999).
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