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Influence de l'homogénéité des portées sur la prise colostrale et la mortalité ...
Charneca, Rui; Lima, Fábio; Freitas, Amadeu; Nunes, José; Le Dividich, JeanWithin‐litter variation in birth weight is a factor relevant to pig production. This study set out to compare colostrum intake and postnatal mortality in litters of uniform or heterogeneous birth weight. The study involved 52 sows (Large White x Landrace) and their litters. To create two litters, either uniform (U) or heterogeneous (Control, C) in birth weight, piglets from two sows farrowing concomitantly were...
Relationship between birth order and birth weight of the pig
Charneca, Rui; Freitas, Amadeu; Nunes, José; Le Dividich, JeanThe objective of this study was to determine whether birth weight of the pig is related to its birth order. The study involved 292 sows from 2 genotypes (Large White x Landrace crossbred (LL), n= 247 and Alentejano (AL), n=45) of mixed parity and their piglets. Most sows farrowed naturally. Each piglet was identified, weighed (± 1g) (mummies excepted) and its birth order (BO) recorded within 2 min of birth. A t...
Influence de l'homogénéité des portées sur la prise colostrale et la mortalité ...
Charneca, Rui; Lima, Fábio; Freitas, Amadeu; Nunes, José; Le Dividich, JeanWithin‐litter variation in birth weight is a factor relevant to pig production. This study set out to compare colostrum intake and postnatal mortality in litters of uniform or heterogeneous birth weight. The study involved 52 sows (Large White x Landrace) and their litters. To create two litters, either uniform (U) or heterogeneous (Control, C) in birth weight, piglets from two sows farrowing concomitantly were...
Reproductive and productive traits of sows from Alentejano compared to sows Lar...
Charneca, Rui; Nunes, José; Le Dividich, JeanThis study compared some reproductive (gestation and farrowing length; total born, born alive, stillbirths, mummified, post-natal mortality) and productive traits (piglet and litter weights at birth and at 21 days) between Alentejano swine breed (AL) and a conventional genotype (Large-White x Landrace - C). A total of 90 animals (45 per genotype) reared under 4 production environments were studied along farrowi...
Body composition and blood parameters of newborn piglets from Alentejano and co...
Charneca, Rui; Nunes, José; Le Dividich, JeanThis study aimed to compare the body composition and some blood parameters [(glucose, albumin and insulin-like growth factor 1 (IGF-1)] of newborn piglets farrowed by unselected Alentejano (AL) or conventional genotype [Large- White Landrace (LL)]. Carcasses (12 of each genotype) and blood samples were obtained from a total of 34 litters (18 AL, 16 LL). Gestation length was 4d shorter in AL sows compared with L...
COMPARATIVE STUDY ON COLOSTRUM PRODUCTION AND COLOSTRUM COMPOSITION IN ALENTEJ...
Charneca, Rui; Tirapicos Nunes, José Luís; Le Dividich, JeanThis study aimed at comparing the colostrum composition and production of Alentejano Swine Breed (AL) to modern sows (LW x LR) (LL). Ten sows from each genotype were used. All farrowings were attended. Colostrum samples were collected at birth of the first piglet and at regular intervals during 36 h after the onset of farrowing. One sample of milk was also collected at d 15 of lactation. Piglets were weighed at...
Comparative study on colostrum production and colostrum composition in Alenteja...
Charneca, Rui; Tirapicos Nunes, José; Le Dividich, JeanThis study aimed at comparing the colostrum composition and production of Alentejano Swine Breed (AL) to modern sows (LW x LR) (LL). Ten sows from each genotype were used. All farrowings were attended. Colostrum samples were collected at birth of the first piglet and at regular intervals during 36 h after the onset of farrowing. One sample of milk was also collected at d 15 of lactation. Piglets were weighed at...
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