Comparison of Mathematical Models Applied to F1 Dairy Sheep Lactations in Organic Farm and Environmental Factors Affecting Lactation Curve Parameter |
Angeles-Hernandez, J.C.
(Maestria y Doctorado en Ciencias Agropecuarias y Recusos Naturales, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma del Estado de Mexico)
Albarran-Portillo, B. (Centro Universitario UAEM Temascaltepec, Universidad Autonoma del Estado de Mexico) Gomez Gonzalez, A.V. (Departamento de Nutricion Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma del Estado de Mexico) Pescador Salas, N. (Departamento de Nutricion Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma del Estado de Mexico) Gonzalez-Ronquillo, M. (Departamento de Nutricion Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma del Estado de Mexico) |
1 | Cappio-Borlino, A., N. P. P. Macciotta, and G. Pulina. 1997. The shape of Sarda ewe lactation curve analyzed by a compartmental model. Livest. Prod. Sci. 51:89-96. DOI ScienceOn |
2 | Carta, A., S. R. Sanna, and S. Casu. 1995. Estimating lactation curves and seasonal effects for milk, fat and protein in Sarda dairy sheep with a test day model. Lives. Prod. Sci. 44:37-44. DOI ScienceOn |
3 | Dag, B., I. Keskin, and F. Mikailsoy. 2005. Application of different models to the lactation curves of unimproved Awassi ewes in Turkey. S.Afr. J. Anim. Sci. 35:238-243. |
4 | Dijkstra, J., J. France, M. S. Dhanoa, J. A. Mass, M. D. Hanigan, A. J. Rook, and J. A. Beever. 1997. A model to describe growth patterns of the mammary gland during pregnancy and lactation. J. Dairy Sci. 80:2340-2354. DOI ScienceOn |
5 | Franci, O., C. Pugliese, G. Acciaioli, G. Parisi, and M. Lucifero. 1999. Application of two models to the lactation curve of Massese ewes. Small Rumin. Res. 31:91-96. DOI ScienceOn |
6 | Gabina, D., F. Arrese, J. Arranz, and I. Beltran de Heredia. 1993. Average milk yields and environmental effects on latxa sheep. J. Dairy Sci. 76:1191-1198. DOI |
7 | Gootwine, E. 2004. Placental hormones and fetal-placental development. Anim. Reprod. Sci. 82-83:551-566. DOI ScienceOn |
8 | Grossman, M., and W. J. Koops. 1988. Multiphasic analysis of lactation curves in dairy cattle. J. Dairy Sci. 71:1598-1608 DOI |
9 | Haenlein, G. F. W., and L. W. Wendorff. 2006. Sheep milk. In: Handbook of Milk of Non-Bovine Mammals (Ed. W. Y. Park and G. F. W. Haenlein). Blackwell Publishing, Iowa, pp. 137-194. |
10 | Keskink, I., and B. Dag 2006. Comparison of different mathematical models for describing the complete lactation of akkaraman ewes in turkey. Asian-Aust. J. Anim. Sci. 19:1551-1555. 과학기술학회마을 DOI |
11 | Rotz, C. A., G. H. Kamphuis, H. D. Karsten, and R. D. Weaver. 2007. Organic dairy production systems in Pennsylvania: A case study evaluation. J. Dairy Sci. 90:3961-3979. DOI ScienceOn |
12 | Rochi, B., and A. Nardone. 2003. Contribution of organic farming to increase sustainability of Mediterranean small ruminants livestock systems. Lives. Prod. Sci. 80:17-31. DOI ScienceOn |
13 | Refsgaard, K., N. Halberg, and E. S. Kristensen. 1998. Energy utilization in crop and dairy production in organic and conventional livestock production systems. Agric. Syst. 57:599-630. DOI ScienceOn |
14 | Ruiz, R., L. M. Oregui, and M. Herrero. 2000. Comparison of models for describing the lactation curve of Latxa sheep and an analysis of factors affecting milk yield. J. Dairy Sci. 83:2709-2719. DOI ScienceOn |
15 | Sakul, H., and W. J. Boylan. 1992. Lactation curves for several US sheep breeds. Anim. Prod. 54:229-233. DOI |
16 | Schoknecht, P. A., S. N. Nobrega, J. A. Patterson, R. A. Ehrhardt, R. Slepeti, and A. W. Bell. 1991. Relations between maternal and fetal plasma concentrations of placental lactogen and placental and fetal weights in fell-fed ewes. J. Anim. Sci. 69:1059-1063. |
17 | Silvestre, A. M., F. Petim-Batista, and J. Colaco. 2006. The accuracy of seven mathematical functions in modeling dairy cattle lactation curves based on test-day records from varying sample schemes. J. Dairy Sci. 89:1813-1821. DOI ScienceOn |
18 | Statistical Analysis Systems Institute. 2002. User's guide version eight. SAS Institute Inc. Cary, NC, USA. |
19 | Toro-Mujica, P., A. Garcia, A. G. Gomez-Castro, R. Acero, J. Perea, V. Rodriguez-Estevez, C. Aguilar, and R. Vera. 2011. Technical efficiency and viability of organic dairy sheep farming systems in a traditional area for sheep production in Spain. Small Rumin. Res. 100:89-95. DOI ScienceOn |
20 | Cappio-Borlino, A., G. Pulina, and G. Rossi. 1995. A non-linear modification of Wood's equation fitted to lactation curves of Sardinian dairy ewes. Small Rumin. Res. 18:75-79. DOI ScienceOn |
21 | Kopke, U. 2005. Organic foods: Do they have a role?. In: Diet diversification and health promotion (Ed. I. Elmadfa). Karger Publishers, Basel, pp. 62-73. |
22 | Leon, J. M., N. P. P. Macciotta, L. T. Gama, C. Barba, and J. V. Delgado. 2012. Characterization of the lactation curve in Murciano-Granadina dairy goats. Small Rumin. Res. 107:76-84. DOI ScienceOn |
23 | Macciotta, N. P. P., D. Vicario, and A. Cappio-Borlino. 2005. Detection of different shapes of lactation curve for milk yield in dairy cattle by empirical mathematical model. J. Dairy Sci. 88:1178-1191. DOI ScienceOn |
24 | Morant, S. V., and A. Gnanasakthy. 1989. A new approach to the mathematical formulation of lactation curves. Anim. Prod. 49:151-162. DOI |
25 | Nauta, W. J., T. Baars, and H. Bovenhuis. 2006. Converting to organic dairy farming: consequences for production, somatic cell scores and calving interval of first parity Holstein cows. Livest. Sci. 90:185-195. |
26 | Olori, V. E., S. Brotherstone, W. G. Hill, and B. J. McGuirk. 1999. Fit of standard models of lactation curves to weekly records of milk production of cows in a single herd. Livest. Prod. Sci. 58:55-63. DOI ScienceOn |
27 | Padel, S. 2000. Strategies of organic milk production. In: Human-animal relationships: Stockman ship and housing in organic livestock systems, Proceedings of the 3th NAHWOA Workshop, Clermont-Ferrand, France. pp. 121-135. |
28 | Pollott, G. E. 2000. A biological approach to lactation curve analysis for milk yield. J. Dairy Sci. 83:2448-2458. DOI ScienceOn |
29 | Pollott, G. E., and E. Gootwine. 2000. Appropriate mathematical models for describing the complete lactation of dairy sheep. Anim. Sci. 71:197-207. |
30 | Portolano, B., F. Spatafora, G. Bono, S. Margiotta, M. Todaro, V. Ortoleva, and G. Leto. 1996. Application of the Wood model to lactation curves of Comisana sheep. Small Rumin. Res. 24:7-13. |
31 | Wasike, C. B., A. K. Kahi, and K. J. Peters. 2011. Modeling of lactation curves of dairy cows based on monthly test day milk yield records under inconsistent milk recording scenarios. Animal 5:1780-1790. DOI ScienceOn |
32 | Tzouramani, I., A. Sintori, A. Liontakis, P. Karanikolas, and G. Alexopoulos. 2011. An assessment of the economic performance of organic dairy sheep farming in Greece. Livest. Sci. 141:136-142. DOI ScienceOn |
33 | Unal, N., M. N. Orman, C. Colak, F. Atasoy, D. Mundan, and M. Aytac. 2007. Comparison of various models for lactation curves of Akkaraman and its crossbreds (ChiosAkkaraman F1 and KivircikAkkaraman F1) ewes. Lalahan Hay. Arast. Enst. Derg 47:7-13 (In Turkish) |
34 | Walker, G. P., F. R. Dunshea, and P. T. Doyle. 2004. Effects of nutrition and management on the production and composition of milk fat and protein: a review. Aust. J. Agric. Res. 55:1009-1028. DOI ScienceOn |
35 | Wilmink, J. B. M. 1987. Adjustment of test-day milk, fat and protein yield for age, season and stage of lactation. Livest. Prod. Sci. 16:335-348. DOI ScienceOn |
36 | Wolfova, M., J. Wolf, Z. Krupova, and J. Kica. 2009. Estimation of economic values for traits of dairy sheep: I. Model development. J. Dairy Sci. 92:2183-2194. DOI ScienceOn |
37 | Wood, P. D. P. 1967. Algebraic model of the lactation curve in cattle. Nature 216:164-165. DOI ScienceOn |