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92 articles for “Cows”
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Research ArticleOpen accessEvery word in the titleThe Increase of Madura Cows Reproduction Performance with Double-Dose Method of Artificial InseminationKuswati, Wike Andre Septian, Khairul Rasyad et al.One of the potencies of Madura cow genetics is its adaptation ability to the tropical climate. Yet in most cases, the reproduction efficiency of the Madura cows has not reached the optimum point. This research examines the use of double-dose artificial insemination compared to a single-dose on Madura cows. The study was conducted in Daramista, Lenteng District, Sumenep Regency, Madura, … …American Journal of Animal and Veterinary Sciences, Vol. 17, Issue 3 · 2 Aug 2022 · 6,163 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSuperovulation Response and Embryo Quality Recovered Following Flushing Nguni Heifers and CowsAyanda Maqhashu, Masindi L. Mphaphathi, Pokgedi J Sebei et al.The aims of the study were to compare super ovulatory response, fertilization rate and evaluate embryo quality recovered from super ovulated Nguni stud cows and heifers. Nguni cows (n = 15) and heifers (n = 10) aged 4-6 and 2 years, respectively, were used as embryo donors. Embryo donors were synchronized for estrus before superovulation. For superovulation donors were administered … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 4 · 25 Nov 2021 · 6,431 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRelationship of Longevity with Productive and Reproductive Variables in Nelore Cows of the Bolivian TropicIkeda Atsuko, Barbona Ivana, Yoichiro Hayashi et al.The objective of this study was to evaluate the relationship between longevity with productive and reproductive efficiency variables of Nelore cows in grazing systems in the Bolivian tropics. Retrospective data corresponding to the period 1992-2019, belonging to the Cooperativa Agropecuaria Integral San Juan de Yapacaní and the Foundation Technology Center on Agriculture and Livestock, Santa Cruz-Bolivia were used. The data … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 4 · 2 Dec 2020 · 6,626 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMorphology and Histochemistry of the Corpus Luteum (CL) of Ovaries of Pregnant and Infertile CowsEvgeny Skovorodin, Svetlana Bogolyuk, George Bazekin et al.The purpose of our study is to study the functional morphology of the Corpus Luteum (CL) of the ovaries of pregnant and infertile cows in normal and pathological conditions. For that purpose, the ovaries of cows were examined after slaughter, histological and histochemical examination of the CL was carried out. For the antemortem examination of the ovary, the biopsy method … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 4 · 23 Oct 2020 · 6,610 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFatty Acid Profile in Butter from Cows Fed with Sunflower Seeds with or Without LignosulfonateWallacy Barbacena Rosa dos Santos, Geraldo Tadeu dos Santos, Daniele Cristina da Silva Kazama et al.The objective of this study was to evaluate the fatty acid composition of butter from Holstein cows fed diets containing ground sunflower seeds or ground and pelleted sunflower seeds, with or without the addition of lignosulfonate. The butter was produced from milk collected from eight Holstein cows multiparous, with 100±62.6 days in milk, with a mean weight of 556±39.8 kg … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 2 · 17 Jun 2020 · 6,691 accessesView PDFCite
InvestigationOpen accessEvery word in the titleThe Level of Milk Production, Depending on the Exterior Traits of Dairy CowsLyudmila Vasilevna Alimzhanova, Saule Kuanyshpekovna Bostanova, Yuliya Nikolayevna Sheiko et al.This article presents the results of the evaluation of the exterior of the Holstein black-and-white and Simmental breeds by the linear method, the dairy productivity of animals has been studied, the relationship between the studied traits of the exterior and the productivity of animals has been determined. The linear evaluation of the first-calves of the Holstein breed in all traits … …OnLine Journal of Biological Sciences, Vol. 18, Issue 1 · 1 Jan 2018 · 7,967 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Complete Feed Silage Made from Agricultural Waste on Milk Yield and Quality of Dairy CowsAmbo Ako, Syahdar Baba, Fatma et al.The problem facing dairy cow producers in tropical area is the low availability of proper nutrition, especially during the dry season. One solution to overcome this problem is to utilize technology of Complete Feed (CF) silage using ensiled several local abundant ingredients from agricultural wastes. This study aimed to find a formulation of CF silage from agricultural wastes as forage … …OnLine Journal of Biological Sciences, Vol. 16, Issue 4 · 17 Nov 2016 · 7,502 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSerum Ornithine Carbamoyltransferase Activity and Correlation with Fatty Liver in Dairy Cows with Displaced AbomasumKen Onda, Reiichiro Sato, Yosuke Sasaki et al.Ornithine Carbamoyltransferase (OCT) is a hepatocyte-specific enzyme; elevated serum activity indicates liver damage. Displaced abomasum frequently occurs around the time of parturition in dairy cattle and is associated with fatty liver. We analyzed serum OCT activities to investigate the relationship between displaced abomasum and fatty liver. Lactating Holstein cows, 75 clinically healthy and 22 with displaced abomasum, were used. Serum … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 3 · 13 Jul 2016 · 7,660 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Inclusion of Albizia saman Pods in the Diet on the Performances of Dairy CowsMin Aung, Yin Yin Kyawt, Moe Thida Htun et al.Ruminants can achieve high productivity when the diet includes concentrates; however these are often expensive due to competition with humans and mono-gastric animals. This experiment was conducted to determine the effect of partial inclusion of Albizia saman pods (ASP) in a Commercial Concentrate (CC) on the performances of dairy cows. Twelve cross-bred Holstein Friesian cows (472±13 kg) in the 12th … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 1 · 29 Dec 2015 · 7,585 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDo Cows Under Subacute Ruminal Acidosis (SARA) Attempt to Self-Medicate?Erin Hendriksen, Ousama AlZahal, Tom C. Wright et al.The objective of this study was to examine feed-sorting behavior of dairy cows in response to a grain challenge that leads to Subacute Ruminal Acidosis (SARA). Sixteen multiparous, rumen-cannulated lactating Holstein cows were used. During the first 49 days of the experiment, all cows received a High-Forage diet (HF; 77:23, F: C; NFC=35). Cows were then transitioned to a High-Grain … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 3 · 2 Sep 2015 · 7,571 accessesView PDFCite