Body and milk quality traits of purebred Holstein and three-generation crossbred cows from Viking Red, Montbéliarde, and Holstein sires
| Autor: | Luca Carraro, Luigi Gallo, Sudeb Saha, Giovanni Bittante |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Withers Biology Body size Crossbreed milk yield lcsh:Agriculture 03 medical and health sciences Animal science Milk yield milk composition dairy cows Crossbreeding Dairy cows Holstein Milk composition Montbéliarde Viking Red Animal Science and Zoology Agronomy and Crop Science lcsh:S 0402 animal and dairy science 04 agricultural and veterinary sciences 040201 dairy & animal science Breed Northern italy 030104 developmental biology Herd crossbreeding body size Purebred |
| Zdroj: | Journal of Central European Agriculture, Vol 19, Iss 4, Pp 760-765 (2018) |
| ISSN: | 1332-9049 |
| Popis: | The objective of this study was to investigate the effects of 3-way rotational crossbreeding scheme of Holstein (HO) cows with Montbéliarde (MO), Viking Red (VR) and HO sires on body and milk quality traits. Cows were purebred HO; F1: (MO × HO; VR × HO); F2: [MO × (VR × HO); VR × (MO × HO)]; F3: {HO × [MO × (VR × HO)]}; HO × [VR x (MO × HO)]}. Data were collected on 745 cows kept in a commercial farm located in Northern Italy. Milk data were acquired from official milk recording and body condition score (BCS) and conformation traits were measured once by trained evaluator. Data were analyzed using a linear model including fixed effects of parity, DIM class and breed combinations. Average body traits: height at withers (HW), body length (BL) and heart girth (HG) of cows were 139,162 and 207 cm respectively. Crossbred cows had shorter HW, BL and HG than pure HO but greater BCS. Milk yield averaged 31.5 kg/d, with fat and protein content close to 3.8 and 3.75%, respectively. Purebred HO produced greater volume of milk than crossbreds but milk from HO had lower protein content. Different combinations of crossbred cows showed similar performance in terms of milk yield traits, but evidenced different body size. The trial is currently in progress to increase cow sample size and widen the number of herds involved. |
| Databáze: | OpenAIRE |
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