Assessment of the dairy production needs of cattle owners in southeastern Sicily.
This study was undertaken to investigate research and outreach priorities for Progetto Ibleo (Project Ibleo), a center created in 1990 with tripartite government funding to serve dairy producers in the Hyblean region of Sicily. Data comprised values for production and composition of milk from 1984 to 1989 from 35 herds of Modicana cows on a system based on pasture and that from 69 input-intensive herds of Holstein cows, associated lactation and reproduction measures, and yield and composition of forages from 4 of these farms in 1988. Season had a large effect on the neutral detergent fiber and crude protein composition of forages, production and composition of milk, and predicted yield of fresh Ragusano cheese manufactured from the milk of these cows. The poorest forage quality and the poorest cow performance were observed in summer and fall months (May to October). Lactation curves that were flat, without a discernible peak, or convex were observed for both systems, especially for cows calving in spring and in the dry summer seasons (March to July). These abnormalities, signifying substantial sacrifices in production potential, probably had a complex etiology that stemmed from low nutrient intake and high neutral detergent fiber and low crude protein composition of the grazed and preserved forages. Research and outreach priorities to support the Hyblean dairy industry should include chemical evaluation of forages and other feedstuffs, low moisture ensiling of high quality winter forages, better formulation of diets that are dense with nutrients, and the shifting of calving patterns to better exploit high quality winter forages.
Licitra
G
G
Istituto de Scienze e Tecnologie delle Produzioni Animali, Università di Catania, Ragusa, Italy.
Blake
R W
RW
Oltenacu
P A
PA
Barresi
S
S
Scuderi
S
S
Van Soest
P J
PJ
D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000502:physiology*; D002980:Climate; D003612:Dairying; D004043:Dietary Fiber / Q000008:administration & dosage; D004044:Dietary Proteins / Q000008:administration & dosage*; D005260:Female; D007774:Lactation; D008892:Milk / Q000737:chemistry; D011247:Pregnancy; D012621:Seasons; D012802:Sicily
D004043:Dietary Fiber; D004044:Dietary Proteins