Đánh giá thực trạng đàn bò vàng, nghiên cứu ảnh hưởng của việc sử dụng bò đực giống 7/8 máu sind và bổ sung thức ăn tinh tới tỷ lệ sống, sinh trưởng của đàn bê lai tại huyện Chợ Đồn tỉnh Bắc Kạn

II. TÀI LIỆU NƯỚC NGOÀI

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31. Abassa. K.P; Wilcox. C; Johnson. T.A (1989), Genetic aspects of growth in Gobra Zebu cattle.

32. Burrow. H.M; seifer. G.W; Hetzel. D.T.S (1991), Consequences of selection for weaning weight in Zebu, Bostaurus and Zebu x Bostaurus cattle in the tropics.

33.Bui Van Chinh, Le Viet Ly, Nguyen Huu Tao, Nguyen Van Hai and Tran Bich Ngoc (2000), Study on processing, storing and using sugar cane leaves as Ruminant feed, Proceeding of National seminar- Workshop on sustainable livestock production on local feed resources, Ho Chi Minh city, Viet Nam, Jan 18-20, trang 146-151.

34. Dashdamirov. K.SH (1991), Carass quality of Zebu. Crossbreed.

35. Dalatte. J.T; Ougan. H; Theander .S..S (1986), Effects of age, sex and breed an the finishing performance of Zebu fed on rice by products in North Cameroon.

36. Ewald Sasimonski (1987), Animal breeding and production on outline.

37. Ertuer. N.M; Koltosova. I.Yu (1984), Age changes in Crossbreed (Holstein – Friesian x Black Pied) and Black Pied calves.

38. Johnson (1958 – 1961), World animal science.

49. Johnson. H.D and Roman Ponce. H (1994), World animal science.

40. Kentamies. H (1983), Genetical and environmental factors affecting slaughter traits in beef production experiments in field.

41. Duong thanh liem, Ngo Van Man, Nguyen phuc Loc, Nguyen Van Hao and Bui Xuan An (1997), Cassava leafmeal in the animal feeding, Viet Nam Cassava workshop, institute of sientific agriculture of south.

42. Michigal. USA; Sorensen. T.M (1984), Photo periodic effection growth and feed consumption of young bulls.

43. Mendel (1971), Johnson H.D and Roman Ponce (1984), World animal science.

44. Montano. M; Matinez. G; reynoso. O (1990), Comparision of BosTaurus and India – Brazil breeds in topcrossing with Zebu cows for growth characteristies.

45. Mwandotto. B.A.J; Carles. H.B; Cartwraight. T.C (1998), Weaning and 18 month weight of Boran, east African shorthorw Zebu and Sahiwal breeds or crosses in Kenya.

46. Newman. S; Deland. M; Wirthensohn. M (1988), Lifetime productivity of F1 cows from seven beef breeds progeny growth.

47. Poivery. J.P; Menissien. F (1988), Growth variability among calves and young cattle from sedentary herd in the Northern Irbry coast.

48. Poungchompa. O; Wanapat. M; Wachirapakoru. C and Notaso. N (2000), Effect of Ruminal infusion of starch urea (cassadro) solution in swamp buffalo fed on urea treated rice straw, Animal science congress of the Asian-Australasian association of animal production, july 2-7, Sydney Australia, P 11-13.

49. Planas. T (1983), Performance of Zebu herd in Cuba. Perweaning and postweaning growth.

50. Ravindran. V (1992), Preparation of cassava leaf products and their use as animal feed, in “Roots, Tubers, platains and Bananas in animal feeding” (Editors: A.W Speedy and P.L Pugliese )FAO animal production and health publication 95, Rome, P 111-126.

51. Saint Martin. G; Messine. O, Mbal. D.A; Planchenault. D (1991), Crossing Adamawa cows in the Cameroon with Bos taurus improver bulls preweaning growth.

52. Shimada. K; Izarike. Y (1989), Effects of breed calf age, sex, parity and toriseason on behaviour.

53. Sung. Y.Y. Wang. K.C (1988), High grate beef production from exotic and crossbred cattle in Taiwan.

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