Coefficients of repeat ability forcolostrumand milk composition of PL Wand PL sows over three consecutive lactations
PBN-AR
Instytucja
Instytut Zootechniki - Państwowy Instytut Badawczy
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Livestock Science
ISSN
1871-1413
EISSN
1878-0490
Wydawca
ELSEVIER
DOI
Rok publikacji
2016
Numer zeszytu
Strony od-do
56-60
Numer tomu
185
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.45
Autorzy
(liczba autorów: 1)
Słowa kluczowe
EN
Coefficient ofrepeatability, Colostrum, Milk, Lactation, Sows
Open access
Tryb otwartego dostępu
Inne
Wersja tekstu w otwartym dostępie
Wersja opublikowana
Licencja otwartego dostępu
Creative Commons — Uznanie autorstwa
Czas opublikowania w otwartym dostępie
Po publikacji
Ilość miesięcy od publikacji
Data udostępnienia w sposób otwarty
Streszczenia
Język
EN
Treść
To date, there have been no studies determining the coefficients of heritability or repeatability for colostrum and milk composition of sows in successive lactations. In the case of sows, estimation of such coefficient of repeatability may give a preliminary indication of whether these traits can be used in the breeding and selection of pigs. The aim of the experiment was to make preliminary estimates of the coefficients of repeatability for the content of the Polish Large White (PLW) and Polish Landrace (PL) sow colostrum and milk components over three consecutive lactations. Subjects were 72 sows of the PLW (30 sows) and PL breeds (42 sows). During three consecutive lactations, samples of colostrum and milk on day 14 of lactation were collected from the first, third and sixth teats of the sows (each sample from teats 1, 3 and 6 totalled 50 ml in volume). In total, 432 samples of colostrum and milk were collected from sows of the two breeds. The samples were analysed for fat, crude protein, lactose, solids, and non-protein solids. Summarizing the results, it is concluded that the highest coefficient of repeatability was estimated for colostrum lactose and solids content over two consecutive lactations: second and third (r=0.3). Also in the milk of second- and third-lactation sows, the lactose content was characterized by the highest coefficient of repeatability (r=0.18). Considering the three consecutive lactations, it was found that colostrum produced by the sows had a consistent content of lactose (r=0.18) as well as solids (r=0.17) and protein (r=0.16). Therefore, it can be stated that the lactose content of sow colostrum in the first lactation could be indicative of a female’s predisposition to produce colostrum and milk with similar lactose content over two consecutive lactations.
Cechy publikacji
Oryginalny-artykuł-naukowy
Inne
System-identifier
5926