Consulta: subjectFacets:"Bovine somatotropin"
Registros recuperados: 3
Data/hora: 05/06/2024 07:21:02

Effect of Bovine Somatotropin Administration on Day 11 after Artificial Insemination in Estrus-Induced Ewes during the Non-Breeding Season
Provedor de dados: 19
Autores: Fukui, Yutaka; Yamamura, Kunio; Matsunaga, Nobuyoshi; Miyamoto, Akio; 福井, 豊; 宮本, 明夫.
The present study aimed to examine the possibility that bovine somatotropin (BST) treatment after artificial insemination (AI) may improve the fertility by the stimulation of corpus luteum (CL) function in seasonally anestrous ewes. The experiment was conducted at the Tawa Field Station, Shibecha-cho in Hokkaido, Japan, during the non-breeding season (May, 1995). Eighty-nine mature (2 to 3 years old) Suffolk and Suffolk-crossed ewes were treated with controlled internal drug release devices containing 0.3 g progesterone (CIDR-G) for 12 days. Ewes were injected intramuscularly with 500 IU PMSG the day before CIDR removal. Eighty-seven ewes were assigned to an insemination of frozen semen on a fixed-time basis (42 to 50 h) after removal of CIDR. On the 11th...
Palavras-chave: Bovine somatotropin; Artificial insemination; Progesterone; Conception rate; Ewes.
Ano: 2000
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2971

The Effect of Recombinant Bovine Somatotropin on Patterns of Milk Production, Lactational Milk Estimates and Net Farm Income
Provedor de dados: 31
Autores: Judge,   Lawrence J.; Lloyd,   James W.; Bartlett,   Paul C.
Bovine somatoropin (bST) alters total milk production and production patterns in dairy cows and understanding the economic benefits of bST for the dairy producer are critical. Holstein cows (n = 555) from four Michigan dairy farms were randomly assigned as untreated controls or to receive 500 mg of bovine somatotropin (PosilacR) administered every 14 days beginning at 63 to 69 days of lactation and continuing until approximately 21 days prior to the end of lactation or until the animal was removed from the herd. Average peak milk production was 50.8 kg / day and occurred at an average of 113 9 days of lactation for bST-treated cows while average peak production was 48.9 kg / day occurring at an average of 86.4 days of lactation for control cows; both...
Tipo: Working or Discussion Paper
Palavras-chave: Bovine somatotropin; Dairy; Net farm income; Farm Management; Livestock Production/Industries; Productivity Analysis; Research and Development/Tech Change/Emerging.
Ano: 2009
URL: http://purl.umn.edu/53966

Demand for Milk Produced With and Without Recombinant Bovine Somatotropin
Provedor de dados: 31
Autores: Misra,   Sukant K.; Clem,   Kyle D.
This study focuses on the nature of Texas consumer perception and willingness to purchase milk produced using recombinant bovine somatotropin (rBST). Future, the possibility of market segmentation is analyzed by estimating the price sensitivity of consumer demand for conventionally produced milk versus rBST-produced milk. Results show that the price elasticities of demand for the two types of milk are different, indicating potential to develop niche markets for both rBST-produced and conventionally produced milk in Texas.
Tipo: Journal Article
Palavras-chave: Bovine somatotropin; Demand; Milk; Agribusiness; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/90440