PRODUCCIÓN DE GAS In vitro Y RESPUESTA PRODUCTIVA DE BECERRAS ALIMENTADAS CON UNA DIETA INTEGRAL QUE CONTIENE PASTA DE AJONJOLÍ (Sesamun indicum) COMO FUENTE PROTEICA

Abstract

<p><strong>Background.</strong> Given the production conditions in the resulting dry tropics, supplementation and use of protein sources is necessary. <strong>Objective.</strong> The objective of this study was to evaluate <em>in vitro</em> gas production, <em>in vitro</em> fermentation characteristics, productive response, ruminal characteristics, and apparent nutrient digestibility of a whole diet with sesame paste or soybean paste in calf feed. <strong>Methodology.</strong> <em>In vitro</em> total gas production was measured at 3, 6, 9, 12, 24, 48 and 72 hours. In addition, Eight Simbrah calves of 229 ± 39 kg live weight (LW) were fed a whole diet containing 10% soybean paste (control) or sesame paste (experimental). The study lasted 40 days and productive variables, nutrient digestibility and ruminal characteristics were determined. The experimental design was completely randomized. <strong>Results.</strong> Total gas production at 3 hours was 39% higher (p <0.05). in the control treatment, while at 6, 9, 12, 24, 48, 72 h and accumulated it was not different (p> 0.05). The dry matter intake (DMI) and the daily weight gain (DWA) did not change (p> 0.05) between treatments. In feed conversion (FC) the calves of the control treatment were 2.04% more efficient. Neutral detergent fiber digestibility was 3.9% higher (p <0.05) in calves fed sesame paste; while the digestibility of dry matter (DDM), organic matter, (DOM), acid detergent fiber (DADF), crude protein (DCP) and ruminal characteristics did not change (p> 0.05) between treatments. <strong>Implications.</strong> The use of sesame paste as a protein source gives a favorable productive response like soybean paste. <strong>Conclusion.</strong> The inclusion of sesame paste in whole calf diets can replace soybean paste in the whole calf diet in the tropics.</p>

In vitro, in situ, and in vivo evaluation of a sesame paste supplement for grazing calves

“…Consequently, the digestibility of the evaluated treatments should record similar results, because DMD did not show differences (p0.05) between treatments (Table 3). In this study, the biogas production values for T2 were lower than those reported by García-Balbuena et al (2022), who carried out a research about a 10% sesame paste diet and recorded 117.02, 37.14, 18.10, and 172.32 mL g 1 DM, at 0-24 h, 24-48 h, 48-72 h, and 0-72 h, respectively. Methane production and DMD recorded higher values in T2 than those reported by García-Balbuena et al (2022) who obtained 30.39, 8.14, 4.86, 43.39, and 26.22 mL g 1 DM, at 0-24 h, 24-48 h, 48-72 h, 0-72 h, and DMD, respectively.…”

“…Consequently, according to Cardona-Iglesias et al (2016), these variables fall within the optimal intervals for the induction of a fast growth of cellulolytic bacteria (Borroto, 2015): 6.2-7.0 pH and 1010 cells mL 1 ruminal bacteria, and 10 5 cell mL 1 protozoa concentrations. García-Balbuena et al (2022) reported a higher pH (7.47), bacteria (4.6710 9 cell mL 1 ) and protozoa (11.0210 5 cell mL 1 ) than this study. In addition, Carbajal-Márquez et al (2021) reported similar pH (6.6), bacteria (4.2710 9 cell mL 1 ), and protozoa (2.510 5 cell mL 1 ) values for Suiz-Bu calves that fed on Mulato II grass and were supplemented (1% of LW) with increasing levels of Earpod tree (Enterolobium cyclocarpum) pods.…”

“…Initial and final weight, DWG, and SC did not record differences (p0.05) between treatments (Table 5). García-Balbuena et al (2022) reported higher results than T2. They recorded a 238.75 kg initial weight and a 268.75 kg final weight, as well as a 0.77 kg d 1 DWG, in calves fed on a diet prepared with 10% sesame paste, 48% corn ensilage, 12% star grass hay, 28% grounded corn grain, and 2% mineral mix.…”

“…Although Cuca and Ávila (1978) evaluated the inclusion of sesame paste in feeding portions for broilers, information about the use of that paste in the diet of ruminants is still scarce. García-Balbuena et al (2022) evaluated the effect of the addition of sesame paste to the integral diets of Simbrah calves; however, they did not record significant differences between treatments. The hypothesis of this research was that replacing soy paste with sesame paste, as source of protein, did not modify the characteristics of in vitro and in situ fermentation and the productive response of F1 calves (under grazing conditions and fed a protein supplement).…”

“…Since feeding accounts for 70% of their total production costs, production units frequently seek to improve their feeding efficiency. Therefore, finding new feeding alternatives -which produce a biological and economic efficiency improvement-is fundamental (García-Balbuena et al, 2022).…”