Results 91 to 100 of about 21,703 (263)

The effects of breeding young bulls and cows in vitro

Animal Reproduction
Abstract In the bovine dairy sector, the pursuit of rapid genetic advancement has prompted the adoption of increasingly younger parental figures for both males and females. While physiological limitations and access to gametes impose certain restrictions, the impact of age on gamete quality remains crucial yet poorly understood. We propose that the age
openaire   +3 more sources

Endogenous and exogenous factors at breeding and exploitation of different cow breeds

Вестник Орловского государственного аграрного университета, 2014
Breeding and exploitation of all cultural breeds in industrial scales is enough difficult and the most important an expense enterprise. In this regard the continuous search of balance between the production amount increase (beat and milk) and production cost savings constantly makes stock-breeders create and breed new varieties.
Shilov, А., Lyashuk, R., Shilov, О.
openaire   +1 more source

Must Longtermists Wish Us All Dead? A Quadrilemma

Journal of Applied Philosophy, EarlyView.
ABSTRACT Longtermists assign great moral importance to making the long‐term future as good as possible, especially by ensuring the survival of humanity. We argue, to the contrary, that on assumptions that are plausible, conservative, or shared by leading longtermists, human extinction will likely augment total utility among human and non‐human animals ...
Nir Eyal, Bastian Steuwer, Shai Meiri
wiley   +1 more source

IMPROVEMENT OF CONCEPTION RATE IN CROSSBRED CATTLE BY USING GnRH ANALOGUE THERAPY [PDF]

Pakistan Veterinary Journal, 2009
This study was carried out to evaluate the effect of Dalmarelin (Lecirelin acetate, GnRH analogue) administration at the time of artificial insemination (AI) on conception rate in repeat breeding crossbred cows.
IFTIKHAR A. ANJUM, R. H. USMANI, M. T. TUNIO AND S. H. ABRO1
doaj  

Evaluation of breeding values of sires and cows in dairy breeds [PDF]

The Animal Biology, 2017
V. O. Danshin, S. Y. Ruban, V. Y. Afanasenko   +2 more
openaire   +1 more source

Nanoplastics: Methods, Exposure and Effects on Domestic, Farm and Wild Animals

Journal of Applied Toxicology, EarlyView.
ABSTRACT Nanoplastics (NPs) are synthetic polymer particles ranging in size from 1 nm to 1 μm that have been identified as a major concern for ecosystems and organisms due to their plethora of negative effects. The aim of this review is to provide a comprehensive overview of the knowledge relating to exposure and effects of NPs in domestic (i.e., farm ...
B. De Felice, M. Bertazzo, A. F. Tabaran, M. Parolini, R. P. Popa, A. Pintea, L. J. Spicer, A‐L. Nagy, F. Caloni   +8 more
wiley   +1 more source

Towards assessing indirect genetic effects in dairy cattle

Genetics Selection Evolution
Background Social interactions in a dairy herd may impact an individual’s production, e.g., milk yield. These interactions can have a genetic component, so-called indirect genetic effects (IGE).
Ida Hansson, Piter Bijma, Freddy Fikse, Lars Rönnegård   +3 more
doaj   +1 more source

Collagenous gastritis in pediatric patients with severe follicular pangastritis and iron deficiency anemia

JPGN Reports, EarlyView.
Abstract Collagenous gastritis is a rare disorder characterized by subepithelial collagen deposition in the gastric mucosa and is frequently associated with iron deficiency anemia. We report two girls aged 8 and 16 years with persistent iron deficiency anemia, abdominal pain, bloating, and constipation.
María Juliana Rusinque Del Busto, Karina Lozano Rivera, Maira Alejandra Forero Rivera, Alejandra Calderón, Santiago Walker, Angie Vergara Espitia, José Fernando Vera Chamorro   +6 more
wiley   +1 more source

In vitro and in sacco determination of neutral detergent fibre digestibility of treated cereal straw

JSFA reports, EarlyView.
Abstract Background Cereal straw is hardly digestible due to its complex bonds of lignin, cellulose and hemicellulose. That is why chemical treatments, such as with sodium hydroxide, may help to loosen the bonds and thus increase ruminal digestibility. Neutral detergent fibre (NDF) digestibility is a good predictor of feed intake.
Siriwan D. Martens, Olaf Steinhöfel
wiley   +1 more source

Macronutrient and micronutrient profiles of meat types: insights into human health and diet

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Despite considerable advances in global health and nutrition, emerging challenges such as population growth, climate change, and limited natural resources continue to threaten food security. Meat remains an essential component of the human diet, supplying high‐quality proteins, essential amino acids, lipids, vitamins, and minerals necessary ...
Özgül Anitaş, Serap Göncü, Fatma Hepsağ, Nazan Koluman, Yesim Ozogul   +4 more
wiley   +1 more source