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Effects of rations and seasons on milk yield and composition in small and medium dairy farms from a Tunisian northern area (Bizerte Region)

In Tunisia, dairy farming faced several problems limiting the improvement of the milk sector, mostly at the level of small farmers. These difficulties are related to the milk quality affected by the feed quality distributed throughout the year. This study aimed to evaluate the effect of rations and...

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Permalink: http://skupni.nsk.hr/Record/nsk.NSK01001144824/Details
Matična publikacija: Mljekarstvo.com
71 (2021), 3 ; str. 194-203
Glavni autori: Attia, Khaoula (Author), Darej, Cyrine, M'Hamdi, Naceur, Sadkaoui, Ghazi, Moujahed, Nizar
Vrsta građe: e-članak
Jezik: eng
Predmet:
Mliječne krave > Hranidba > Mlijeko > Kvaliteta mlijeka
Online pristup: https://doi.org/10.15567/mljekarstvo.2021.0305
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100 1 |a Attia, Khaoula  |4 aut  |9 HR-ZaNSK 
245 1 0 |a Effects of rations and seasons on milk yield and composition in small and medium dairy farms from a Tunisian northern area (Bizerte Region)  |h [Elektronička građa] /  |c Khaoula Attia, Cyrine Darej, Naceur M'Hamdi, Ghazi Sadkaoui, Nizar Moujahed. 
300 |b Graf. prikazi. 
504 |a Bibliografija: 43 jed. 
504 |a Abstract ; Sažetak. 
520 |a In Tunisia, dairy farming faced several problems limiting the improvement of the milk sector, mostly at the level of small farmers. These difficulties are related to the milk quality affected by the feed quality distributed throughout the year. This study aimed to evaluate the effect of rations and seasons on daily individual milk production (DIMP) and some physicochemical characteristics (Fat content: FC, Protein content: PC, Urea concentration: UC, Total Solids: TS). A survey and milk samplings were performed on 135 farmers. Collected data were treated by the variance analysis using the GLM procedure of the SAS system. This study allowed to identify four types of ration: TR1: Concentrate (CC)+Green Forage(GF), TR2: CC+Dry Forage (DF), TR3: CC+GF+DF and TR4: Diet containing Silage (S), used by farmers with the frequencies of 14.82, 37.19, 44.6 and 3.38 % respectively. 
520 |a U Tunisu se mljekarstvo suočilo s nekoliko problema koji ograničavaju poboljšanje mliječnog sektora, uglavnom na razini malih poljoprivrednika. Te su poteškoće povezane s kvalitetom mlijeka na koju utječe kvaliteta hrane koja se distribuira tijekom cijele godine. Cilj ovog rada bio je procijeniti učinak obroka i godišnjih doba na dnevnu individualnu proizvodnju mlijeka (DIMP) i neke fizikalno-kemijske karakteristike (sadržaj masti: FC, sadržaj proteina: PC, koncentracija uree: UC, ukupna suha tvar: TS). Istraživanje i uzorkovanje mlijeka provedeno je na 135 mliječnih farmi, a prikupljeni podaci obrađeni su analizom varijance korištenjem GLM postupka SAS sustava (verzija 9.0, 2002). Ova studija utvrdila je utjecaj četiri vrste obroka: TR1: koncentrat (CC)+zelena krma (GF), TR2: CC +suha krma (DF), TR3: CC+GF+DF i TR4: obrok koji sadrži silažu (S). 
653 0 |a Mliječne krave  |a Hranidba  |a Mlijeko  |a Kvaliteta mlijeka 
700 1 |a Darej, Cyrine  |4 aut  |9 HR-ZaNSK 
700 1 |a M'Hamdi, Naceur  |4 aut  |9 HR-ZaNSK 
700 1 |a Sadkaoui, Ghazi  |4 aut  |9 HR-ZaNSK 
700 1 |a Moujahed, Nizar  |4 aut  |9 HR-ZaNSK 
773 0 |t Mljekarstvo.com  |x 1846-4025  |g 71 (2021), 3 ; str. 194-203  |w nsk.(HR-ZaNSK)000625306 
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856 4 1 |y Digitalna.nsk.hr 

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