Authors : Ignacio Mejia Haro, Mauro E. Mora De Alba, Jose Manuel Martinez Mireles, Irene V. Vitela Mendoza, Jose Mejia Haro and Benjamin Ortiz De La Rosa
Abstract: The study was conducted at the Technologic Institute El Llano, Aguascalientes, Mexico to evaluate Ensiled Apple Pomace (EAP) as energy source combined with poultry manure in a mixed diet and the effects on productive performance and digestibility in replacement female lambs. About 24 lambs were used of an initial live weight of 16±2.5 kg and distributed in a random block design with four treatments and six blocks. The treatments were: T1, 0% EAP and 0% poultry manure; T2, 30% EAP and 0% poultry manure; T3, 0% EAP and 20% poultry manure and T4, 30% EAP and 20% poultry manure. The evaluated variables were: feed intake, average daily gain, feed conversion in situ digestibility, ruminal VFA and feed costs. Data were statistically evaluated by analysis of variance and multiple comparisons of means. In Daily Gain (ADG) T1 was higher than the rest of the treatments (p<0.05), DMI was lower in T2 than T1 and T3 while Feed Conversion (FC) and DM digestibility in different ruminal incubation times presented no differences among treatments (p>0.05). In the cost of 1 km of body weight gain, T4 had a saving of 21% (p<0.05) compared to T1 and 29% to T3. The molar production of volatile fatty acids in rumen fluid was higher (p<0.05) in T1-T3 but no differences were observed in the percentage of acetic, propionic and butyric acids. Ensiled apple Pomace combined with poultry manure is an alternative in growing lambs feeding in order to reduce the production costs.
Ignacio Mejia Haro, Mauro E. Mora De Alba, Jose Manuel Martinez Mireles, Irene V. Vitela Mendoza, Jose Mejia Haro and Benjamin Ortiz De La Rosa, 2018. Effect of Apple Pomace and Poultry Manure in Mixed Diets on Productive Performance in Replacement Female Lambs. Journal of Animal and Veterinary Advances, 17: 45-50.