Bibliographic citations
Reyes, J., (2017). Uso de pasta de algodón (Gossypium barbadense L.) de bajo nivel de gosipol en la alimentación de terneras Holstein [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/2888
Reyes, J., Uso de pasta de algodón (Gossypium barbadense L.) de bajo nivel de gosipol en la alimentación de terneras Holstein [Tesis]. : Universidad Nacional Agraria La Molina; 2017. https://hdl.handle.net/20.500.12996/2888
@mastersthesis{renati/1116695,
title = "Uso de pasta de algodón (Gossypium barbadense L.) de bajo nivel de gosipol en la alimentación de terneras Holstein",
author = "Reyes Otero, Jorge Eduardo María",
publisher = "Universidad Nacional Agraria La Molina",
year = "2017"
}
In order to evaluate the effect of high levels of inclusion of Cotton Seed Meal (CSM), 10 and 20 percent, in the replacement calf feed, its effect on feed intake and the activity of the enzyme Serum Sorbitol Dehydrogenase (SDHS) a test was carried out in Santa Juana Dairy Farm. Huacho, Lima. For this purpose, 36 newborn Holstein calves were distributed in 3 treatments: T0: control, 0 percent CSM; T1: 10 percent CSM and T2: 20 percent CSM under a completely randomized design, the same ones that were evaluated until weaning at 60 days. When evaluating food consumption, there were no significant differences between treatments, with total consumptions per calf of: 21,392.7; 23.340.2 and 23.545.9 g for T0, T1 and T2, respectively. In contrast, when the level of SDHS activity was evaluated at the end of the experiment, significant differences (P <.001) were found in favor of CSM treatments. The levels found: 29.5 U / L; 44.7 U / L and 59.5 U / L for T0, T1 and T2, respectively, far exceed the normal level (14.7 + 1.3 U / L), although there were no visible effects on feed consumption of calves. No significant differences were found either in the live weight increments (every 15 days) or in the weight at the end of the experiment at 60 days, obtaining: 81.0 kg; 82.9 kg and 82.9 kg for T0, T1 and T2, respectively. Likewise, when wither height was evaluated no significant differences were found neither in the wither height increment (every 15 days) nor in the size at the end of the experiment: 84.3 cm; 84.0 cm. And 84.6 cm. for T0, T1 and T2, respectively. When carrying out the economic evaluation, in US dollars, (1 $ = S /. 3.50) of the average cost of feeding per calf per treatment we found that this was: 83.6; 83.8 and 83.9 for T0, T1 and T2, respectively. It is concluded that Cotton Seed Meal can be used in the concentrate feed of replacement calves at a level of up to 20 percent.
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