Nutrients intake, milk production, and production costs of dairy goats fed with high proportions of cactus cladodes genotypes Opuntia and Nopalea in association with different forage sources
Silva, José Geraldo Medeiros daSantos, Lázaro Henrique de MedeirosSilva, Hildelblano Pereira daSilva, Gustavo José Azevedo Medeiros daCardoso, Daniel BarrosLima, Guilherme Ferreira da CostaMelo, Airon Aparecido Silva de
This study aimed to evaluate the nutrient intake, milk production, and production costs of dairy goats fed diets containing the rations with cactus cladodes (Opuntia strictaor Nopalea cochenillifera) associated with silage (Sorghum bicolor)or Tifton hay (Cynodonspp).Twelvepluriparous Saanen and Anglo Nubiana goats (42.25 ± 5.48kg) at eight weeks of lactation were used. Treatments lasted 60 days, consisting of four periods of 15 days, distributed in three Latin square (4×4) with four diets. The treatments represented by diets with differentassociatedfeed: SSOP (Sorghum Silage + Opuntia); THOP (Tifton hay + Opuntia); SSNO (Sorghum Silage + Nopalea); and THNO (Tifton hay + Nopalea), in addition to concentrate in all diets. There were differences (p <0.05) for the intakes of DM, OM, with higher values observed for goats fed the diets THNO, THOP, and SSNO, and for CP, NDF and ADF were higher for THNO and SSNO diets. Similar behavioroccurred for voluntary and total water intake. The milk production and feed efficiency did not differ(p >0.05). Costs with food, milk revenue, and gross revenue were not influenced by diets(p >0.05).The Opuntiaor Nopaleacactus cladodes genotypes associated with sorghum silage or tifton hay can be used to feed dairy goats in the semiarid region.(AU)
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