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Influence of supplemental fats on reproductive tissues and performance of lactating cows.
Fat supplementation (about 3% of dietary dry matter) has often positively influenced the reproductive status of the dairy cow, including increased size of the ovulatory follicle, increased numbers of… Expand
Effects of dietary fatty acids on reproduction in ruminants.
Fats in the diet can influence reproduction positively by altering both ovarian follicle and corpus luteum function via improved energy status and by increasing precursors for the synthesis of… Expand
Energy balance and size and number of ovarian follicles detected by ultrasonography in early postpartum dairy cows.
Multiparous Holstein cows (n = 52) were fed one of six diets consisting of a totally mixed ration (corn silage, corn grain, soybean meal, dried distillers grains, and whole cottonseed) plus either… Expand
Long chain fatty acids of diet as factors influencing reproduction in cattle.
- J. Santos, T. Bilby, W. Thatcher, C. Staples, F. T. Silvestre
- Biology, Medicine
- Reproduction in domestic animals = Zuchthygiene
- 9 July 2008
Cattle are fed moderate amounts of long chain fatty acids (FA) with the objective to enhance lactation and growth; however, recent interest on lipid feeding to cows has focused on reproduction,… Expand
Uterine, ovarian, and production responses of lactating dairy cows to increasing dietary concentrations of menhaden fish meal.
- R. Mattos, C. Staples, J. Williams, A. Amorocho, M. McGuire, W. Thatcher
- Biology, Medicine
- Journal of dairy science
- 1 April 2002
The primary objective was to determine whether the dietary polyunsaturated fatty acids, eicosapentaenoic (EPA, C20:5, n-3) and docosahexaenoic (DHA, C22:6, n-3), present in fish meal (FM) can… Expand
The effects of feeding fish oil on uterine secretion of PGF2alpha, milk composition, and metabolic status of periparturient Holstein cows.
The objectives were to determine the effect of dietary fish oil (FO) on uterine secretion of PGF2alpha, milk production, milk composition, and metabolic status during the periparturient period.… Expand
Differential response of the luteal phase and fertility in cattle following ovulation of the first-wave follicle with human chorionic gonadotropin or an agonist of gonadotropin-releasing hormone.
A series of experiments with Holstein heifers was conducted to develop the capability of inducing accessory corpus luteum (CL) with a GnRH agonist (Buserelin, 8 micrograms; GnRHa) or hCG (3,000 IU)… Expand
Abomasal infusion of glucose and fat--effect on digestion, production, and ovarian and uterine functions of cows.
Four ruminally cannulated lactating dairy cows, arranged in a 4 x 4 Latin square design, were infused abomasally with 1) water (control), 2) 1 kg/d of glucose, 3) 0.45 kg/d of tallow, and 4) 0.45… Expand
Relationship between ovarian activity and energy status during the early postpartum period of high producing dairy cows.
The effect of energy status upon ovarian activity during early lactation was assessed in 54 multiparous Holstein cows. Dry matter intake and milk yield were measured daily from parturition through 9… Expand
Influence of diet composition, dry-matter intake, milk production and energy balance on time of post-partum ovulation and fertility in dairy cows
Lactating Holstein-Friesian cows from two calving groups (no. = 90) were studied during the early post-partum period to determine the effect of dry-matter intake (DM1), 40 g/kg fat-corrected milk… Expand