Comparative Study of Lactation Curves and Milk Quality in Holstein versus Swedish Red and White-Holstein Cross Cows
| Autor: | Diego Pipino, Nicolas Lopez-Villalobos, Mónica Belén Piccardi, M. Isabel Vázquez, F. Lembeye |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
DAIRY COWS Biology Crossbreed 03 medical and health sciences Animal science Swedish Red-and-White Lactation medicine LACTATION CURVES CROSSBREEDING SWEDISH RED AND WHITE 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Producción Animal y Lechería Milk production 040201 dairy & animal science Breed purl.org/becyt/ford/4.2 [https] 030104 developmental biology medicine.anatomical_structure CIENCIAS AGRÍCOLAS Purebred purl.org/becyt/ford/4 [https] Otras Producción Animal y Lechería |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 1927-0518 1927-050X |
| Popis: | The objective of this study reported in this research paper was to compare the lactation curves of the production of milk, fat, protein, percentages of fat and protein, and somatic cell score in purebred Holstein (H) cows and Swedish Red and White (SRW) - Holstein (SxH) crossbred cows in the south-central region of the province of Cordoba, Argentina. The data set consisted of 32847 herd-test records from 1244 purebred H cows and 310 SRW x H crossbred cows, from three commercial dairy farms with cows of first to fifth or more lactations. The curves were modeled using the fourth-order Legendre orthogonal polynomials. In this study, the data of production of milk, fat production, protein production, percentage of fat, percentage of protein and somatic cell score (SCS) were analyzed. Purebred H cows had significantly higher milk production, more fat production and higher protein production levels than did SxH crossbred cows. However, SxH crossbred cows produced milk that had a higher percentage of fat and a higher percentage protein than did purebred H cows. In none of the lactations did somatic cell score differ significantly between the two breed groups. The results of our study showed that, SxH crossbred cows had significantly higher percentages of fat and protein; however, purebred H cows were significantly superior to SxH crossbred cows for the production of 305-d milk, fat, and protein. Mammary health, expressed in SCS, did not differ significantly between the two breed groups. Thus, suggest that crossbreeding Holstein purebred cows with SRW bulls can improve the composition of milk solids without affecting mammary health and, in this way, compensate substantially for any potential loss in the production and/or quality of the milk of the crossbred cows compared to H purebred cows. Fil: Pipino, Diego. Agroveterinaria Pipino; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina Fil: Piccardi, Mónica Belén. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Departamento de Desarrollo Rural. Area de Estadística y Biometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lembeye, Felipe. Soprole. Gerencia de Abastecimiento. Departamento Agropecuario; Chile Fil: Lopez Villalobos, Nicolas. Massey University; Nueva Zelanda Fil: Vazquez, Maria Isabel. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
| Databáze: | OpenAIRE |
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