scholarly journals Supplementation of rams with dried Acacia Saligna (Labil) H.L. Wendi. leaves improve reproductive performance without compromising carcass quality

2021 ◽  
pp. 060-068
Author(s):  
Gebru Gebreslassie ◽  
Tesfay Yayneshet ◽  
Belay Gurja ◽  
Ashebir Gebregiorgis
Keyword(s):  
Reproductive Performance ◽  
Carcass Quality ◽  
Acacia Saligna

The effects of nutrition on reproductive performance, lactation and carcass quality of once bred gilts

1995 ◽  
Vol 1995 ◽  
pp. 178-178
Author(s):  
A H Stewart ◽  
S A Edwards ◽  
V R Fowler
Keyword(s):  
Sugar Beet ◽  
Reproductive Performance ◽  
Feed Efficiency ◽  
Reproductive Physiology ◽  
Sugar Beet Pulp ◽  
Energy Sources ◽  
Carcass Quality ◽  
Beet Pulp ◽  
Ad Libitum

The once bred gilt system of production has a number of benefits in terms of feed efficiency and welfare, however the system relies on the production of a quality carcass and acceptable reproductive performance. Previous studies have indicated that welfare might be improved if gilts were ad-libitum fed a diet containing 60% Sugar beet pulp (Stewart et al 1993). There was a suggestion however that reproductive physiology may be put at risk using such a diet. The objective of this experiment was to identify differences in reproductive performance using two different energy sources in gestation and to manipulate nutrition during lactation to study the effect on carcass quality.

The effects of nutrition on reproductive performance, lactation and carcass quality of once bred gilts

1995 ◽  
Vol 1995 ◽  
pp. 178-178
Author(s):  
A H Stewart ◽  
S A Edwards ◽  
V R Fowler
Keyword(s):  
Sugar Beet ◽  
Reproductive Performance ◽  
Feed Efficiency ◽  
Reproductive Physiology ◽  
Sugar Beet Pulp ◽  
Energy Sources ◽  
Carcass Quality ◽  
Beet Pulp ◽  
Ad Libitum

The once bred gilt system of production has a number of benefits in terms of feed efficiency and welfare, however the system relies on the production of a quality carcass and acceptable reproductive performance. Previous studies have indicated that welfare might be improved if gilts were ad-libitum fed a diet containing 60% Sugar beet pulp (Stewart et al 1993). There was a suggestion however that reproductive physiology may be put at risk using such a diet. The objective of this experiment was to identify differences in reproductive performance using two different energy sources in gestation and to manipulate nutrition during lactation to study the effect on carcass quality.

Reproductive performance, growth and carcass characteristics of gilts mated at puberty, restricted in food intake during gestation and slaughtered post-partum

1982 ◽  
Vol 34 (1) ◽  
pp. 17-29 ◽  
Author(s):  
J. I. Elliot ◽  
G. A. Lodge ◽  
A. Fortin ◽  
Elizabeth Larmond
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Reproductive Performance ◽  
Food Restriction ◽  
Post Partum ◽  
Carcass Characteristics ◽  
Average Weight ◽  
Carcass Quality ◽  
Body Weight Change ◽  
Acceptable Range

ABSTRACTSeventy-four Yorkshire gilts, mated at puberty, were used in three experiments to study the effect of severe food restriction, 0·45 kg/day for either the last 15 or 30 days of gestation, on reproductive performance, body-weight change, and carcass quality and meat acceptability. The objective of the experiments was to assess the feasibility of limiting weight gain during gestation to produce an acceptable carcass post-partum, within the market weight range of 55 to 90 kg. Age and weight at puberty averaged 170·3 days and 99·1 kg respectively. Litter size averaged 9·3 liveborn piglets at an average weight of 1·13 kg. The necessary reduction in weight gain during gestation to bring final carcass weight within the acceptable range was associated with a significant reduction in mean individual birth weight to below 1·0 kg. Sensory evaluation of loin and ham joints from mated and unmated gilts of market weight revealed no differences in juiciness or flavour but both loin and ham joints from maiden gilts were significantly more tender than those from gilts that had farrowed and from unmated controls of the same age as those that had farrowed

Comparative Performance of Two Primiparous Continental Genotypes in a Hill Suckler Herd (1) Reproductive Performance

1994 ◽  
Vol 1994 ◽  
pp. 21-21 ◽  
Author(s):  
R Keatinge ◽  
K A Christensen ◽  
P A Rowlinson
Keyword(s):  
Reproductive Performance ◽  
Eating Quality ◽  
Carcass Quality ◽  
Comparative Performance ◽  
Genotype By Environment ◽  
Holstein Friesian ◽  
The Uk

The drive for improved carcass quality has encouraged greater use of continental cross suckler dams (MLC,1993), producing three-quarterbred continental progeny. Little information is available on the performance of these types of suckler cow under hill conditions in the UK, but significant genotype by environment interractions have been measured elsewhere (Morris et al, 1993). As a finished animal, the Piemontese cross has shown significant advantages in killing-out proportion and yield of saleable meat (Davies et al, 1992), and some improvements in eating quality (Fisher et al, 1992).The objective of this experiment was to assess the output and reproductive performance of Piemontese cross Holstein/Friesian (PxH/F) and Simmental cross Holstein/Friesian (SxH/F) heifers in an autumn calving suckler herd.

Response of suffolk and texel rams to implantation with melatonin

1991 ◽  
Vol 1991 ◽  
pp. 15-15
Author(s):  
S.M. Bateman ◽  
W. Haresign
Keyword(s):  
Reproductive Performance ◽  
Research Effort ◽  
Carcass Quality ◽  
High Fertility ◽  
Testis Size ◽  
Seasonal Fluctuations ◽  
Sheep Meat ◽  
Testicular Recrudescence ◽  
The Uk ◽  
Terminal Sire

There is currently much interest in overcoming the seasonality of sheep meat supplies in the UK and improving carcass quality. Towards that end, much research effort has been devoted to the development of techniques to induce early or out-of-season breeding in the ewe, but little attention has been paid to the male. Rams of most breeds show marked seasonal fluctuations In reproductive performance, with a depression in testis size, libido and semen quantity and quality during the spring and summer months and a period of high fertility in the autumn/winter, coinciding with the breeding season of ewes of the same breed. Problems of subfertllity which are frequently encountered following the use of various techniques to induce out-of-season breeding in the ewe may therefore be attributable, at least in part, to the ram. The choice of terminal sire for early lambing flocks is further compromised because some breeds of ram show later testicular recrudescence than others.

РОДСТВЕННЫЕ ГРУППЫ РЕДКИХ ПОРОД ГУСЕЙ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Gene Pool

ЖАРКОВА И.П., ГРИШИНА Д. С. Федеральный научный центр «Всероссийский научно-исследовательский и технологический институт птицеводства» Российской академии наук Аннотация: Авторами изучены генетические параметры хозяйственно-полезных признаков гусей (сохранность, яйценоскость, масса яиц, оплодотворенность и выводимость яиц, вывод гусят) в зависимости от их происхождения. Новизна работы заключается в том, что впервые проведен анализ закономерностей проявления репродуктивных качеств у родственных групп гусей. При сравнительном изучении 21 породы гусей установлено, что группа пород гусей, родственных между собой по общему селекционному предку, а именно китайской серой породе (1-я родословная), имеет более высокие воспроизводительные способности по сравнению с другими породами и группами пород. Полученные данные будут применяться в дальнейшей работе с целью совершенствования приемов сохранения генофонда малочисленных пород гусей. Ключевые слова: ГЕНОФОНД ПОРОД ГУСЕЙ, РОДСТВЕННЫЕ ГРУППЫ, РЕПРОДУКТИВНЫЕ КАЧЕСТВА, GENE POOL OF GEESE BREEDS, BIOGENETICALLY RELATED GROUPS OF BREEDS, REPRODUCTIVE PERFORMANCE

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