Bibliographic citations
Condemarín, A., (2002). Rendimiento productivo de pollos de carne criados con el anticoccidial Natural: sapogeninas esteroidales [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/3267
Condemarín, A., Rendimiento productivo de pollos de carne criados con el anticoccidial Natural: sapogeninas esteroidales [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2002. https://hdl.handle.net/20.500.12672/3267
@misc{renati/472422,
title = "Rendimiento productivo de pollos de carne criados con el anticoccidial Natural: sapogeninas esteroidales",
author = "Condemarín Bramón, Alfredo",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2002"
}
--- The objective of this trial was to evaluate the productive performance of broiler chickens comparing two different anticoccidial drugs. Eight hundred chickens Ross 308 were randomly selected, and then divided in two groups of 400 animals each one. One group received Steroidal sapogenins (500 ppm) in food, and the other was supplemented with anticoccidial ionophorus salinomicin (60 ppm). Those groups were at once divided in 5 subgroups of 80 birds each one. Chickens were then challenge with natural challenge of coccidia. The productive parameters were evaluated weekly. Since the third week up to sixth week, 10 birds were randomly chosen and killed for post-mortem examination. Evaluation of intestinal macroscopic lesions and presence of oocysts in intestinal mucosa scrapping were also performed. The shank pigmentation was furthermore evaluated at 42 day. The productive parameters for both groups were: feed intake 1524,57 Kg and 1478,5 Kg., final body weight 2,480 Kg and 2,413 Kg., food conversion 1,64 and 1,63, and mortality 2,5 and 1 % for steroidal sapogenins (SS) and salinomicyn, respectively. Not statistically significant difference was found between those groups. A reduction in food intake in the group treated with salinomicin was noted when the drug was retired (fifth week). There were not macroscopic lesions, and the number of oocysts intestinal scrapping was greater in the duodenum in both groups. Although the counts of oocysts showed an upward trend, there was no statically difference between the two groups. The shank pigmentation index was 4,88 and 4.73 for SE and salinomicin, respectively. The variation coefficients were 22,33 and 15,39, for the groups treated with steroidal sapogenins and salinomicyn, respectively. We conclude that the effect of SE and salinomicin is similar regarding to productive parameters, intestinal lesions, and number of oocysts in this trial.
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