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Articles by J.R. Orozco-Hernandez
Total Records ( 5 ) for J.R. Orozco-Hernandez
  I.J. Ruiz-Garcia , J.R. Orozco-Hernandez and C. Garcia de la Pena
  Agave plant is the main ingredient for tequila manufacturing mainly due to sugar content of the core which is cooked before juices extraction, the solid waste (pulp) obtained may be used in animal feeding. Nine lactating dairy goats were blocked by production level and used to assess three substitution rates (0, 25 or 50%, dry matter basis) of agave pulp instead forage in the diet. Animals were individually lodged and feed ad libitum, fresh tap water was offered daily. The trial was 21 days long and the last week was used for sample collection, measurements of intake, milk yield and milk quality. The goats were weighted at the beginning and at the end of the trial. Feed intake averaged 2.41 kg day-1 and was not affected by the level of pulp (p>0.05). Milk yield augmented 34% with the 50% of agave pulp in the feed (p<0.05) but percentage of nutrient was unaltered (p>0.05), however the nutrient daily production of protein and lactose was increased (p<0.05). Body weight and back fat were similar among treatments (p>0.05). Based on the finding, it could be concluded that the pulp can substitute corn stover in dairy goat without affecting animal health and performance.
  J. Lopez Camarena , J.R. Orozco-Hernandez , J.H. Medina-Villarreal , J.J. Uribe-Gomez , H. Verdin-Sanchez and V.O. Fuentes-Hernandez
  Some products used against coccidia as feed additives in ruminants affect the production. However, no information was found on the effect of robenidine as defaunation agent on the intake or apparent digestibility of nutrients in the Pelibuey lamb. The experiment comprised three trials, in the first, eighteen lambs (average weight of 20 kg) were use to assess production. In the second, nine Pelibuey crossbred males (average weight 20 kg) were used. Animals were individually lodged and fed a corn stalk based ration and concentrate. The protected robenidine was added at 0, 33 and 66 mg kg-1 live weight. The Average Daily Gain (ADG), intake and in vivo apparent digestibility of dry matter, organic matter and structural carbohydrates was assessed. The ADG, daily intake and digestibility were similar among treatments (p>0.05). In the third trial, three rumen cannulated lambs were used in a 3x3 Latin square arrangement. No effect was observed in the pH or number of total protozoas (p>0.05). The robenidine has no effect on production parameters or the rumen fauna.
  S.G. Bravo Jimenez , J.R. Orozco-Hernandez , J.J. Uribe-Gomez , V.O. Fuentes Hernandez , A. Aguilar de la Torre and O.H. Navarro-Gonzalez
  The search for alternative proteinaceous ingredients for monogastric animals is a constant task for the producer. The continuous renewal of hen population in the poultry industry, generates a protein source of aminoacids that can be used in pig feeding. The objective of the trial was to assess the effect of increasing levels of a poultry by-product meal in pig feeding, from weaning to market weight. Eighty newly weaned pigs were separated into 5 animal group to assess the addition of 0, 2.5, 5 and 7.5% (dry matter basis) of a Spent Hen by-product Meal (SHM) to a sorghum-soybean meal in pigs. The intake was daily measured and the weight gain was calculated using initial and final measurements. The initial weight was used as co-variable for the gain. Most of the production parameters were negatively affected with the addition of SHM (p<0.05). Increasing the SHM in the diet may affect negatively some of the production parameters in pigs.
  E. Alvarado-Loza , J.R. Orozco-Hernandez , I.J. Ruiz-Garcia , F.J. Paredes-Ibarra and V.O. Fuentes-Hernandez
  The oligosaccharides that are present in the feed modulate the development of microflora, which in turn helps the animal performance. Agave tequilana azul Weber plant in primarily use to produce beverage tequila and is a source of the fructo-oligosaccharide inulin. Three levels (0, 1, or 2%) of agave inulin were added to the feed of eighteen male rabbits to assess the performance and organ changes. The addition of the agave inulin reduced the intake but the average daily gain was similar among levels (p>0.05). Digestive tract associated organs were not affected by the level of inulin in the feed (p>0.05). Therefore, using 2% of agave inulin can affect positively the rabbit digestive tract.
  F.J. Paredes-Ibarra , J.R. Orozco-Hernandez , H. Verdin-Sanchez , O.D. Montanez-Valdez , E. Alvarado-Loza and V.O. Fuentes Hernandez
  Tequila industry bagasse is an alternative feedstuff that need to be assessed as part of the lamb diet. Nine Pelibuey lambs were used in a 3x3 factorial trial to assess the inclusion of agave bagasse in the diet, untreated or 4% NaOH treated on nutrient intake and in vivo digestion, as well as performance and water intake. The inclusion of 25% of agave bagasse affected positively the intake of dry matter, organic matter and gross energy (p<0.05) and their apparent digestibility (p<0.05). However, neither the water intake or daily gain of weight were statistically affected by treatments (p>0.05). Hence, the agave bagasse can be used as an alternative feedstuffs for Pelibuey lambs.
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