• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 39
  • 21
  • 9
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 82
  • 82
  • 31
  • 31
  • 29
  • 17
  • 16
  • 15
  • 15
  • 10
  • 10
  • 9
  • 9
  • 9
  • 9
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Untersuchungen zum Einfluss verschiedener fortpflanzungssteuernder Maßnahmen auf die Fruchtbarkeitsleistung von Jung- und Altsauen unter Großbestandsbedingungen / Investigations to the role of biotechnological interventions in the reproductive performance of gilts and sows in large swine farms

Lau, Holger 31 January 2008 (has links)
No description available.
12

Effect of Moderate Diet Restriction on Body Condition, Health, and Reproductive Performance in Female Mink (Neovison vison)

Boudreau, Laura 21 August 2012 (has links)
Selection for large body size can result in the development of obesity, which in mink females is associated with poor reproduction and metabolic diseases. Caloric restriction is effective in diminishing oxidative stress and delaying aging-related diseases. This study investigated the effects of moderate diet restriction (MDR) during the fall on body condition, health, and reproductive success of mink (Neovison vison) breeder females. The 100 control (CTRL) females were fed according to normal farm feeding practice and the 100 sister-pair MDR females were fed about 20% less. In the fall, more ideal body weights and body condition scores (BCS) were seen in the MDR females, and they produced larger litter sizes. In addition, the MDR females exhibited less deoxyribonucleic acid (DNA) damage than the CTRL females. Telomeres were elongated in both groups. This dietary management practice is anticipated to result in significant advancement in the fur industry, both economically and welfare-wise.
13

Determinants of reproductive performance of dairy cows in commercial herds in Australia

Morton, John Unknown Date (has links) (PDF)
Reproductive performance of lactating dairy cows was studied using a prospective observational study of 29,462 cows in 168 commercial herds in 9 regions in Australia. There was substantial variation in all reproductive performance measures between herds, suggesting that important increases in reproductive performance would be possible in many commercial Australian herds if causal factors were identified and modified. Multivariable multilevel logistic models were used to study potential determinants for two measures of overall reproductive performance - pregnancy by week 6 after start of the mating period (mating start date or MSD) and non-pregnancy by week 21 after MSD, and for two components of overall reproductive performance - submission by week 3 after MSD and conception to first service.
14

Reproductive and lactation performnace of dairy cattle in the Oromia Central Highlands of Ethiopia : with special emphasis on pregnancy period /

Lobago, Fikre, January 2007 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2007. / Härtill 4 uppsatser.
15

Herd investigations on sperm production in boars, and sow fertility under tropical conditions - with special reference to season, temperature, and humidity /

Suriyasomboon, Annop, January 2005 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniversitet, 2005. / Härtill 3 uppsatser.
16

The endometrium of the gynaecologically healthy mare during oestrus : a clinical, morphological, chemical and immunological study /

Tunón, Ann-Marie, January 1900 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
17

Analyzing categorical traits in domestic animal data collected in the field /

Gates, Peter J., January 1900 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 5 uppsatser.
18

Demographic and life history consequences of harvest in a Swedish moose population /

Ericsson, Göran, January 1900 (has links) (PDF)
Diss. (sammanfattning) Umeå : Sveriges lantbruksuniv. / Härtill 6 uppsatser.
19

Nest predation processes and farmland birds : habitat selection and population dynamics of predators and prey /

Roos, Staffan, January 2004 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2004. / Härtill 5 uppsatser.
20

On repeat breeding in dairy heifers : with special focus on follicular dynamics, ovulation, and oocyte quality /

Båge, Renée, January 2002 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2002. / Härtill 5 uppsatser.

Page generated in 0.0885 seconds