Scientific Opinion on the safety and efficacy of vitamin D3 (cholecalciferol) as a feed additive for chickens for fattening, turkeys, other poultry, pigs, piglets (suckling), calves for rearing, calves for fattening, bovines, ovines, equines, fish and other animal species or categories, based on a dossier submitted by DSM [PDF]
The principal physiological role of vitamin D in all vertebrates is in calcium and phosphorus homeostasis. The classic clinical deficiency syndrome is rickets. The FEEDAP Panel notes that for turkeys for fattening, equines, bovines, ovines and pigs the maximum content for vitamin D3 in feed does not provide any margin of safety, and that, except for ...
Aquilina, G +19 more
openaire +2 more sources
Growth and development of calves depending on the method of feeding with cereal and milk
The article studies the influence of the milk feeding method on the growth and development of calves. The object of research is newborn Samara black-motley calves.
Karamaeva Anna Sergeevna +4 more
doaj +1 more source
SOME FACTORS AFFECTING SOUNDNESS AND BEHAVIOUR OF DAIRY ANIMALS [PDF]
This work was carried out on 1255 dairy cows and 183 buffaloes in two types of housing, cow and milk house systems to investigate the effect of housing system on the soundness and behaviour of such animals.
I.S. MENEEH, H. SAMAHA, A. ALI
doaj +1 more source
Abstract Background This study investigated the effects of crossbreeding, finishing system, and muscle type on carcass characteristics, intramuscular fat (IMF), image‐based IMF estimation, fatty acid composition, and meat quality in beef heifers. Charolais × Salers (C × S) and Angus × Salers (A × S) crossbred heifers were finished either on pasture or ...
Dominique Gruffat +7 more
wiley +1 more source
A Qualidade do tratamento durante a lactação influencia o comportamento pós-desmame de leitões [PDF]
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Agroecossistemas, Florianópolis, 2011Os objetivos deste estudo foram comparar o comportamento pósdesmame de leitões tratados de ...
Sommavilla, Roberta
core
Short- and Long-Term Effects of Split-Suckling in Pigs According to Birth Weight
Forty-eight litters were used, with a total number of 645 piglets involved in the study. The split-suckling technique was applied to half of the litters at the end of farrowing by removing the heaviest piglets over three periods of 1 h.
Romero, María +17 more
core +1 more source
Abstract The re‐evaluation of feed additives in the European Union was outlined in the Regulation (EC) No 1831/2003. The primary objectives were to ensure safety and verify efficacy, as well as to update authorizations and phase out unsafe additives or those in which the industry expressed no interest.
Gloria López‐Gálvez +11 more
wiley +1 more source
The biological interaction between copper and iron is best exemplified by the decreased activity of multicopper ferroxidases under conditions of copper deficiency that limits the availability of iron for erythropoiesis. However, little is known about how copper deficiency affects iron homeostasis through alteration of the activity of other copper ...
Lenartowicz, Małgorzata +9 more
openaire +5 more sources
Temporal and seasonal trends of bovine tuberculosis in the Irish cattle population (2008–2024)
Abstract Background Bovine tuberculosis (bTB) has substantial impacts on the Irish cattle industry. Between 2016 and 2024, its burden increased in Irish cattle. As an initial step towards understanding drivers of this increase, we explore long‐term trends in measures of bTB burden and cattle demographics in Ireland. Methods Using data from 2008 to 2024,
Jamie M. Madden +8 more
wiley +1 more source
Background Diet plays a role on the development of the immune system, and polyunsaturated fatty acids can modulate the expression of a variety of genes.
Rivero Montserrat +7 more
doaj +1 more source

