Brahman cattle are important in tropical regions due to their ability to tolerate excessive heat and parasites. However, Brahman cattle exhibit lower carcass quality characteristics when compared to Bos taurus breeds. The objective of this study was to evaluate potential associations between single nucleotide polymorphisms (SNPs) in six candidate genes for carcass quality and composition traits...

In the last decade breeders of Romagnola cattle observed an outbreak of a new congenital anomaly. This lethal multi-organ developmental dysplasia is mainly characterized by facial deformities, ascites and hepatic fibrosis. Affected stillborn calves were inbred to a single founder sire suggesting autosomal monogenic recessive inheritance. We localized the causative mutation to a 1.2 Mb interval ...

Genetic variability of mastitis resistance is well established in dairy cattle. Many studies focused on polygenic variation of the trait, by estimating heritabilities and genetic correlation among phenotypic traits related to mastitis such as somatic cell counts and clinical cases. The role of Major Histocompatibility Complex in the susceptibility or resistance to intrammamary infection is also...

This paper seeks to examine how the Lake Nyos gas disaster of 21 August 1986 affectedlivestock production and cattle rearing within environment Subum, Cha Nyos. It brings forefront, post-disaster effects onthe pastoral community. Thepolicies strategies put forth by various stakeholdersat national international levels have partially addressed some worries posed this disaster, even thoughthe area...

Multiple-trait selection indexes should include all of the economically-relevant traits that influence the profitability of beef cattle production. They provide an economic evaluation of the genetic differences among sires, and an objective way to determine likely differences in the profitability of progeny from different sires. In contrast to the swine, poultry, sheep, and dairy cattle industr...

The majority of cattle farmers businesses in Rejodadi Village Sembawa Disrict Banyuasin Regency are still managed a small-scale traditional pattern with an average number 3-5 and used as side business, where the main business is plantation labor. study aimed to : 1) Calculating income from Village, District, Regency, 2) Analyzing what factors affect level beef Regency. This research was conduct...

The beef supply chain in Indonesia is a long and challenging (complex) because it involves many actors to track beef, from breeders the form of cattle slice meat consumed by consumers. openness (transparency) each actor involved can increase safety consumed, ensuring food safety. To ensure safety, system needed make easier for consumers trace origin beef. This study discusses infrastructure des...

Animal societies composed of breeders and non-breeders present a challenge to evolutionary theory because it is not immediately apparent how natural selection can preserve the genes that underlie non-breeding strategies. The clownfish Amphiprion percula forms groups composed of a breeding pair and 0-4 non-breeders. Non-breeders gain neither present direct, nor present indirect benefits from the...

As central place foragers, breeding penguins are restricted in foraging range by the need to return to the colony to feed chicks. Furthermore, breeding birds must balance energetic gain from self-feeding with the costs of returning to provision young. Non-breeding birds, however, are likely to be less restricted in foraging range and lack the high energy demands of provisioning, therefore may c...