Abstract
During the dry season months from June to August, 56 randomly selected female Junin breed sheep at the IVITA-El Mantaro Research Station, Huancayo, Peru, were fed during 21 days four different diets designed to determine the effect of bypass protein (fish meal) on weight gain in sheep fed urea treated crop residues (barley straw with amonia). The four diets were comprised of: 1) 230 g of cotton cake, 2) 161 g of cotton cake and 42 g of fish mea], 3) 69 g of cotton cake and 97 g of fish meal and 4) 140 g of fish meal. Each diet supplied approximately 72 g protein per animal. Additionally ali the animals received 200 g of alfalfa hay and had free access to water and barley straw treated with amonia. Daily weight gains were recorded, and ali four diets produced similar (p>0.05) results: 1) 240, 2) 265, 3) 276 and 4) 255 g/day. The results indicate, that under conditions of the present experiment, the addition of bypass protein to a diet including amonia treated straw fails to produce additional weight gain in sheep.
| Translated title of the contribution | Bypass protein in the diet of sheep fed urea treated crop residues |
|---|---|
| Original language | Spanish |
| Pages (from-to) | 93-97 |
| Number of pages | 5 |
| Journal | Revista de Investigaciones Veterinarias del Peru |
| Volume | 12 |
| Issue number | 1 |
| State | Published - 2001 |
Bibliographical note
Funding Information:El estudio se llevó a cabo en la Estación Experimental El Mantaro, del Instituto Veterinario de Investigaciones Tropicales y de Altura (IVIT A) perteneciente a la Universidad Nacional Mayor de San Marcos, ubicado en el distrito del mismo nombre, provincia de Jauja, departamento de Junín. La estación se encuentra a una altitud de 3,320 m, con una temperatura y precipitación promedio anual de 10.9ºC y 750 mm, respectivamente. Se utilizaron 56 ovinos hembras vacías, de la raza Junín, con edad y peso promedio de 4 años y 40 kg, respectivamente; distribuidos al azar en cuatro tratamientos con 14 unidades experimentales cada uno. El experimento tuvo una duración de 21 días. Los animales estuvieron estabulados en corrales y fueron previamente dosificados contra nemátodos gastrointestinales y pulmonares.
Publisher Copyright:
© 2001 Universidad Nacional Mayor de San Marcos. All rights reserved.